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Sarah Chapman Stem Cell Collagen Activator Duo
Sarah Chapman

Sarah Chapman Stem Cell Collagen Activator Duo

Efficacy75/100IrritancyHigh
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Works for

1 of 1 advertised claim delivered

Anti-aging
13 ingredients credited for this claim
Moderate support
What the product description says
“Key Benefits Innovative four-week programme to renew and replenish skinUses stem cell technology and transformative peptides to smooth, plump and firm skinMarkedly reduces the signs of ageing, leaving the complexion fresh and comparatively youngerImproves the healthy function of skin UK200016352”
Source: SpaceNK

This product contains acetyl hexapeptide-8, acetyl octapeptide-3, dipeptide diaminobutyroyl benzylamide diacetate, dipeptide-2, lysine, palmitoyl oligopeptide, palmitoyl pentapeptide-4, palmitoyl tetrapeptide-7, palmitoyl tripeptide-5. These ingredients might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

LysineKey activeEffect: MediumAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.1%
Palmitoyl tripeptide-5Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.85–1.3%
Palmitoyl tetrapeptide-7Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–1.2%
Palmitoyl pentapeptide-4Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.2–1.9%
Palmitoyl oligopeptideKey activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.2–1.8%
Dipeptide-2Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.15%
Dipeptide diaminobutyroyl benzylamide diacetateKey activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.1–0.3%
Acetyl octapeptide-3Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.5–2.2%
Acetyl hexapeptide-8Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.9–2.8%
Glycine soja proteinEffect: LowA plant extract that helps to attract water to the upper layer of the skin and soften it. It might be helpful in neutralizing free radicals. It might be somewhat helpful for evening out the skin tone. It might be able to support elastin production but solid research is lacking~0.2–0.7%
Centella asiatica extractUnder-dosedEffect: MediumA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.1–0.45%
Camellia sinensis leaf extractEffect: Low, below effective doseCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.05–0.2%
Laminaria digitata extractEffect: Low, below effective doseSeaweed extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but good research is lacking at the moment~0.05–0.15%
Moisturizing
Not advertised by the brand · 27 ingredients credited for this claim
Strong support

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, imperata cylindrica root extract.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: palmitoyl tetrapeptide-7, glycine soja protein.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: acetyl hexapeptide-8, acetyl octapeptide-3, dipeptide diaminobutyroyl benzylamide diacetate, dipeptide-2, palmitoyl oligopeptide, palmitoyl pentapeptide-4, palmitoyl tetrapeptide-7, palmitoyl tripeptide-5

Acetyl hexapeptide-8Hero· HumectantEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.9–2.8%
Imperata cylindrica root extractKey active· HumectantEffect: HighA plat extract that might help neutralize free radicals in skin and attract water to its upper layer~0.05–0.15%
LysineKey activeEffect: HighAn amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles~0.05–0.1%
Palmitoyl oligopeptideHeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.2–1.8%
Palmitoyl pentapeptide-4HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.2–1.9%
Palmitoyl tetrapeptide-7Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.5–1.2%
Palmitoyl tripeptide-5HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.85–1.3%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.1–0.3%
TyrosineKey activeEffect: High~0.01–0.1%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.1–6.1%
Dipeptide-2HeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.05–0.15%
Dipeptide diaminobutyroyl benzylamide diacetateHeroEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.1–0.3%
Crithmum maritimum callus culture filtrateKey activeEffect: HighA plant cell extract that helps attract water to the upper layer of the skin and might have some anti-oxidant properties~0.05–0.15%
Acetyl octapeptide-3Hero· HumectantEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~1.5–2.2%
Hydrolyzed wheat proteinKey active· HumectantEffect: MediumCan help attract water to the upper layer of the skin. Avoid if sensitive to gluten~0.05–0.3%
Glycine soja proteinKey active· Humectant, EmollientEffect: MediumA plant extract that helps to attract water to the upper layer of the skin and soften it. It might be helpful in neutralizing free radicals. It might be somewhat helpful for evening out the skin tone. It might be able to support elastin production but solid research is lacking~0.2–0.7%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.05–0.2%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~0.05–0.15%
Peg-8· HumectantEffect: LowUsed to create a nice product consistency~0.05–0.2%
Peg-8 dimethiconeEffect: LowA type of silicone that can help create nice product texture and soften the upper layer of the skin~3.4–5.2%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~2.5–3.8%
Glyceryl polymethacrylate· Humectant, EmollientEffect: LowUsed to create a nice product texture~0.05–0.2%
Centella asiatica extractUnder-dosedEffect: HighA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.1–0.45%
ArginineUnder-dosedEffect: HighAn amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin~0.05–0.1%
Laminaria digitata extractUnder-dosedEffect: MediumSeaweed extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but good research is lacking at the moment~0.05–0.15%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.05–0.25%
Camellia sinensis leaf extractEffect: Low, below effective doseCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.05–0.2%
Anti-oxidation
Not advertised by the brand · 9 ingredients credited for this claim
Moderate support

This product contains antioxidants (imperata cylindrica root extract) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Imperata cylindrica root extractKey activeEffect: MediumA plat extract that might help neutralize free radicals in skin and attract water to its upper layer~0.05–0.15%
Hesperidin methyl chalconeEffect: LowMight help neutralize free radicals in skin. Is claimed to be able to improve the appearance of undereye darkness but evidence is missing. Can be an allergen and cause irritation~0.05–0.15%
Spiraea ulmaria flower extractEffect: LowMight have some anti-oxidant and anti-inflammatory properties. Can be irritating~0.05–0.2%
Echinacea purpurea extractEffect: LowPlant extract that might have some anti-oxidant properties. Can be irritating~0.05–0.25%
Glycine soja proteinEffect: LowA plant extract that helps to attract water to the upper layer of the skin and soften it. It might be helpful in neutralizing free radicals. It might be somewhat helpful for evening out the skin tone. It might be able to support elastin production but solid research is lacking~0.2–0.7%
Crithmum maritimum callus culture filtrateEffect: LowA plant cell extract that helps attract water to the upper layer of the skin and might have some anti-oxidant properties~0.05–0.15%
Camellia sinensis leaf extractUnder-dosedEffect: MediumCan contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation~0.05–0.2%
Centella asiatica extractUnder-dosedEffect: MediumA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.~0.1–0.45%
Laminaria digitata extractEffect: Low, below effective doseSeaweed extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but good research is lacking at the moment~0.05–0.15%

Can it cause trouble?

Irritancy
5 strong irritants: Citrus aurantium amara flower oil, Methylisothiazolinone + 3 more — patch-test recommended
High risk
We flagged 19 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Echinacea purpurea extractPlant extract that might have some anti-oxidant properties. Can be irritatingHigh~0.05–0.25%est.
Spiraea ulmaria flower extractMight have some anti-oxidant and anti-inflammatory properties. Can be irritatingHigh~0.05–0.2%est.
Hesperidin methyl chalconeMight help neutralize free radicals in skin. Is claimed to be able to improve the appearance of undereye darkness but evidence is missing. Can be an allergen and cause irritationHigh~0.05–0.15%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~0.05–0.15%est.
Citrus aurantium amara flower oilUsed as a fragrance. Can be irritatingHigh~0.05–0.2%est.
MethylisothiazolinoneA preservative. Is a frequent allergenHigh~0.00075–0.0015%est.
Benzyl benzoateFragrance with sweet balsamic smell. Help to preserve products and dissolve other ingredients. Could trigger allergic reactions and be irritatingHigh~0.05–0.1%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.01–0.05%est.
LinaloolA fragrance. Can be irritatingHigh~0.01–0.05%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~2.5–3.8%est.
Hydrolyzed wheat proteinCan help attract water to the upper layer of the skin. Avoid if sensitive to glutenMedium~0.05–0.3%est.
Centella asiatica extractA plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.Medium~0.1–0.45%est.
Imperata cylindrica root extractA plat extract that might help neutralize free radicals in skin and attract water to its upper layerMedium~0.05–0.15%est.
Peg-8Used to create a nice product consistencyMedium~0.05–0.2%est.
Steareth-20Helps oil and water mix togetherMedium~0.1–0.35%est.
PvpHelps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skinMedium~0.05–0.2%est.
TriethanolamineUsed to adjust pH of the product and can help improve the product's smellMedium~0.05–0.2%est.
Disodium edtaStabilizes the product formulationMedium~0.05–0.15%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.05–0.2%est.
Comedogenic
2 ingredients rated 2 or more on the 0–5 pore-clogging scale
2 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Macrocystis pyrifera extract—3/5~0.05–0.3%est.
Laminaria digitata extractSeaweed extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but good research is lacking at the moment3/5~0.05–0.15%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4.1–6.1%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Peg-8 dimethicone~3.4–5.2%
Formula
Irritation risk
Low
Works for
Moisturizing

A type of silicone that can help create nice product texture and soften the upper layer of the skin

More about Peg-8 dimethicone
Pentylene glycol~2.5–3.8%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to preserve products, dissolve other ingredients and create a nice product texture

More about Pentylene glycol
Acetyl hexapeptide-8~1.9–2.8%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Acetyl hexapeptide-8
Acetyl octapeptide-3~1.5–2.2%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Acetyl octapeptide-3
Palmitoyl pentapeptide-4~1.2–1.9%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl pentapeptide-4
Palmitoyl oligopeptide~1.2–1.8%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingCleansingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl oligopeptide
Palmitoyl tripeptide-5~0.85–1.3%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl tripeptide-5
Palmitoyl tetrapeptide-7~0.5–1.2%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Palmitoyl tetrapeptide-7
Hydrolyzed rice bran protein~0.3–0.75%
Formula
Irritation risk
Low
More about Hydrolyzed rice bran protein
Glycine soja protein~0.2–0.7%
Key active
Irritation risk
Low
Works for
CleansingMoisturizingEvens skin toneAnti-agingAnti-oxidation

A plant extract that helps to attract water to the upper layer of the skin and soften it. It might be helpful in neutralizing free radicals. It might be somewhat helpful for evening out the skin tone. It might be able to support elastin production but solid research is lacking

More about Glycine soja protein
Oxido reductases~0.1–0.4%
Formula
Irritation risk
Low

An enzyme. There is no evidence for its benefits in topical skincare

More about Oxido reductases
Dipeptide diaminobutyroyl benzylamide diacetate~0.1–0.3%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Dipeptide diaminobutyroyl benzylamide diacetate
Macrocystis pyrifera extract~0.05–0.3%
Comedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
More about Macrocystis pyrifera extract
Hydrolyzed wheat protein~0.05–0.3%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Can help attract water to the upper layer of the skin. Avoid if sensitive to gluten

More about Hydrolyzed wheat protein
Sodium hyaluronate~0.1–0.3%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Centella asiatica extract~0.1–0.45%
Under-dosedIrritant · medium
Irritation risk
Medium
Works for
Reduces irritationReduces rednessMoisturizingAnti-inflammatoryAnti-agingAnti-oxidationAnti-blemish

A plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.

More about Centella asiatica extract
Echinacea purpurea extract~0.05–0.25%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

Plant extract that might have some anti-oxidant properties. Can be irritating

More about Echinacea purpurea extract
Spiraea ulmaria flower extract~0.05–0.2%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatoryAnti-oxidation

Might have some anti-oxidant and anti-inflammatory properties. Can be irritating

More about Spiraea ulmaria flower extract
Leucine~0.05–0.2%
Formula
Irritation risk
Low
More about Leucine
Valine~0.05–0.15%
Formula
Irritation risk
Low
More about Valine
Tyrosine~0.01–0.1%
Key active
Irritation risk
Low
Works for
Moisturizing
More about Tyrosine
Arginine~0.05–0.1%
Under-dosed
Irritation risk
Low
Works for
Moisturizing

An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin

More about Arginine
Lysine~0.05–0.1%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-aging

An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles

More about Lysine
Imperata cylindrica root extract~0.05–0.15%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-oxidationAnti-inflammatory

A plat extract that might help neutralize free radicals in skin and attract water to its upper layer

More about Imperata cylindrica root extract
Peg-8~0.05–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Used to create a nice product consistency

More about Peg-8
Camellia sinensis leaf extract~0.05–0.2%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAntibacterialAnti-agingAnti-blemishMoisturizingEvens skin tone

Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation

More about Camellia sinensis leaf extract
Hesperidin methyl chalcone~0.05–0.15%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

Might help neutralize free radicals in skin. Is claimed to be able to improve the appearance of undereye darkness but evidence is missing. Can be an allergen and cause irritation

More about Hesperidin methyl chalcone
Steareth-20~0.1–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Steareth-20
Dipeptide-2~0.05–0.15%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingAnti-aging

A type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles

More about Dipeptide-2
Peg-8/smdi copolymer~0.05–0.25%
Formula
Irritation risk
Low
More about Peg-8/smdi copolymer
Polysorbate 20~0.05–0.2%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Gardenia jasminoides meristem cell culture extract~0.05–0.15%
Formula
Irritation risk
Low
More about Gardenia jasminoides meristem cell culture extract
Laminaria digitata extract~0.05–0.15%
Under-dosedComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-oxidationAnti-aging

Seaweed extract that helps the skin to attract water and make it more smooth for touch. Also shows promise of anti-aging properties, but good research is lacking at the moment

More about Laminaria digitata extract
Glyceryl polymethacrylate~0.05–0.2%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture

More about Glyceryl polymethacrylate
Butylene glycol~0.05–0.15%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Propylene glycol~0.05–0.15%
Irritant · high
Irritation risk
High
Works for
Moisturizing

Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating

More about Propylene glycol
Xanthan gum~0.05–0.2%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Carbomer~0.05–0.15%
Formula
Irritation risk
Low
Works for
Cleansing

Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations

More about Carbomer
Pvp~0.05–0.2%
Irritant · medium
Irritation risk
Medium

Helps evenly disperse other ingredients in a formulation and create an even layer on the surface of the skin

More about Pvp
Triethanolamine~0.05–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to adjust pH of the product and can help improve the product's smell

More about Triethanolamine
Disodium edta~0.05–0.15%
Irritant · medium
Irritation risk
Medium

Stabilizes the product formulation

More about Disodium edta
Caprylyl glycol~0.05–0.2%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Crithmum maritimum callus culture filtrate~0.05–0.15%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidation

A plant cell extract that helps attract water to the upper layer of the skin and might have some anti-oxidant properties

More about Crithmum maritimum callus culture filtrate
Eryngium maritimum callus culture filtrate~0.05–0.15%
Formula
Irritation risk
Low
More about Eryngium maritimum callus culture filtrate
Jasminum officinale oil~0.01–0.05%
Formula
Irritation risk
Low
More about Jasminum officinale oil
Citrus aurantium amara flower oil~0.05–0.2%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Citrus aurantium amara flower oil
Methylisothiazolinone~0.00075–0.0015%
Irritant · high
Irritation risk
High

A preservative. Is a frequent allergen

More about Methylisothiazolinone
Argania spinosa callus culture extract~0.05–0.15%
Formula
Irritation risk
Low
More about Argania spinosa callus culture extract
Lecithin~0.05–0.25%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin
Sodium benzoate~0.05–0.15%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Benzyl benzoate~0.05–0.1%
Irritant · high
Irritation risk
High

Fragrance with sweet balsamic smell. Help to preserve products and dissolve other ingredients. Could trigger allergic reactions and be irritating

More about Benzyl benzoate
Limonene~0.01–0.05%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Linalool~0.01–0.05%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Ingredient list view

Water, Glycerin, Peg-8 dimethicone, Pentylene glycol, Acetyl hexapeptide-8, Acetyl octapeptide-3, Palmitoyl pentapeptide-4, Palmitoyl oligopeptide, Palmitoyl tripeptide-5, Palmitoyl tetrapeptide-7, Hydrolyzed rice bran protein, Glycine soja protein, Oxido reductases, Dipeptide diaminobutyroyl benzylamide diacetate, Macrocystis pyrifera extract, Hydrolyzed wheat protein, Sodium hyaluronate, Centella asiatica extract, Echinacea purpurea extract, Spiraea ulmaria flower extract, Leucine, Valine, Tyrosine, Arginine, Lysine, Imperata cylindrica root extract, Peg-8, Camellia sinensis leaf extract, Hesperidin methyl chalcone, Steareth-20, Dipeptide-2, Peg-8/smdi copolymer, Polysorbate 20, Gardenia jasminoides meristem cell culture extract, Laminaria digitata extract, Glyceryl polymethacrylate, Butylene glycol, Propylene glycol, Xanthan gum, Carbomer, Pvp, Triethanolamine, Disodium edta, Caprylyl glycol, Crithmum maritimum callus culture filtrate, Eryngium maritimum callus culture filtrate, Jasminum officinale oil, Citrus aurantium amara flower oil, Methylisothiazolinone, Argania spinosa callus culture extract, Lecithin, Sodium benzoate, Benzyl benzoate, Limonene, Linalool

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SpaceNK US
$124.80
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Amazon USPrice as of 10/9/2026 21:02 GMT
$370.07
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
Sarah ChapmanStem Cell Collagen Activator DuoYOUR PRODUCTDermaquestPeptide Line CorrectorPeter Thomas RothPeptide 21 Wrinkle Resist Serum
Match—59%50%
Price$124.80$204.00+$79.20$85.87−$38.93
Shared key ingredients—13 of 168 of 16
Key difference—Acetyl Hexapeptide-30Hexapeptide-11
Irritancy High Medium Medium
Drying alcohol— Contains drying alcohol —
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Product summary

"Sarah Chapman - Stem Cell Collagen Activator Duo" has a good moisturizing formula. This moisturizer uses a good combo of humectants and emollients. These both types of ingredients are essentials for improving the skin hydration and keeping the skin barrier healthy. Humectants in this product (acetyl hexapeptide-8, acetyl octapeptide-3, glycerin, imperata cylindrica root extract and sodium hyaluronate) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Palmitoyl tetrapeptide-7, glycine soja protein, caprylyl glycol, pentylene glycol and glyceryl polymethacrylate in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.

Ingredient callouts

  • This moistruizer also contains peptides (palmitoyl tripeptide-5 0.85% - 1.30%, palmitoyl tetrapeptide-7 0.50% - 1.20%, dipeptide-2 0.05% - 0.15%, dipeptide diaminobutyroyl benzylamide diacetate 0.10% - 0.30%, palmitoyl oligopeptide 1.20% - 1.80%, palmitoyl pentapeptide-4 1.20% - 1.90%, acetyl octapeptide-3 1.50% - 2.20% and acetyl hexapeptide-8 1.90% - 2.80%). Peptides is a very big group of ingredients. They all consist of a different combination of amino-acids. Our skin produces peptides naturally. Some of them work as natural anti-biotics, promote wound-healing and production of collagen. The scientists are still studying how effective the topical application of peptides is, but it is very likely that peptides in skincare are helpful. They might be able to support skin barrier restoration and even have an anti-aging benefit. At the very least, they certainly help attract water to the skin and support the hydration in this way.

Irritation risk

This moisturizer contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. We assess the overall irritancy of this moisturizer to be high. For a detailed overview of all potential irritants: click here

You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.

Price

The product retails from 124.80$ up to 320.00$ in the United States and from 94.80£ up to 116.40£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 24 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Dermatological and cosmeceutical benefits of Glycine max (soybean) and its active componentsncbi.nlm.nih.gov
  3. 3
    Extracts from Glycine max (soybean) induce elastin synthesis and inhibit elastase activityonlinelibrary.wiley.com
  4. 4
    Wheat in skin caremdedge.com
  5. 5
    Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
  6. 6
    Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin careresearchgate.net
Sarah Chapman Stem Cell Collagen Activator Duo
Sarah ChapmanStem Cell Collagen Activator Duo
Buy at SpaceNK US$124.80$370.07as of 10/9 21:02 GMT

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

Buy at SpaceNK US$124.80$370.07as of 10/9 21:02 GMT

As an Amazon Associate, WIMJ earns from qualifying purchases.