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Cyrène Skincare Diamond Retinal 1
Cyrène Skincare

Cyrène Skincare Diamond Retinal 1

Efficacy100/100IrritancyMedium
See all ingredients

Works for

Anti-aging
Retinal, Niacinamide + 8 more
Works well
What the product description says
“İnce çizgi, düzensiz cilt tonu ve doku görünümüne yönelik bakım rutininizi destekler.”
Source: Cyrène

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains retinal, niacinamide.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: centella asiatica extract, madecassoside, palmitoyl tetrapeptide-7, palmitoyl tripeptide-1.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.3–0.5%
NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~0.7–1.05%
Centella asiatica extractKey activeEffect: 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.~0.5–0.7%
Palmitoyl tetrapeptide-7Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
Palmitoyl tripeptide-1Key activeEffect: MediumA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
MadecassosideKey activeEffect: MediumAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.2–0.35%
3-o-ethyl ascorbic acidEffect: LowA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.55–0.85%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.25–0.45%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.15%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.3–0.55%
Evens skin tone
Retinal, Niacinamide + 4 more
Works well
What the product description says
“İnce çizgi, düzensiz cilt tonu ve doku görünümüne yönelik bakım rutininizi destekler.”
Source: Cyrène

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: retinal.

In addition, this product contains niacinamide. This ingredient (ingredients) might help reduce hyperpigmentation, but the effect, if any, is likely to be small.

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: 3-o-ethyl ascorbic acid, bifida ferment lysate, madecassoside.

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.3–0.5%
NiacinamideKey activeEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~0.7–1.05%
3-o-ethyl ascorbic acidKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.55–0.85%
Bifida ferment lysateEffect: LowConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~1.7–2.1%
MadecassosideEffect: LowAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.2–0.35%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.3–0.55%
Moisturizing
Niacinamide, Palmitoyl tetrapeptide-7 + 16 more
Works well
What the product description says
“Cildin derinlemesine nemlenmesine ve daha aydınlık görünmesine destek olur.”
Source: Cyrène

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, sodium hyaluronate.

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: caprylic/capric triglyceride, squalane.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: ceramide np, madecassoside, niacinamide, palmitoyl tetrapeptide-7, palmitoyl tripeptide-1

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~0.7–1.05%
Palmitoyl tetrapeptide-7Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
Palmitoyl tripeptide-1Hero· EmollientEffect: HighA type of peptide. Peptides are excellent moisturizers and might be able support collagen production reducing fine lines and wrinkles~0.25–0.5%
MadecassosideHeroEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.2–0.35%
Ceramide npHero· EmollientEffect: HighA type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin~0.15–0.3%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~6.7–8.2%
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~3.2–3.9%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~2–2.5%
Bifida ferment lysateKey activeEffect: HighConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~1.7–2.1%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~0.5–0.75%
Centella asiatica extractKey activeEffect: 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.~0.5–0.7%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.5–0.7%
PhospholipidsKey activeEffect: MediumEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.35–0.65%
Beta-glucanKey activeEffect: HighHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.25–0.45%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~2.4–3%
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~1.2–1.5%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~1–1.3%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.15%
Anti-oxidation
Side benefit · Bifida ferment lysate, 3-o-ethyl ascorbic acid + 5 more
Works well

This product contains antioxidants (madecassoside) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - 3-o-ethyl ascorbic acid, bifida ferment lysate, centella asiatica extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Bifida ferment lysateKey activeEffect: MediumConsists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect~1.7–2.1%
3-o-ethyl ascorbic acidKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~0.55–0.85%
Centella asiatica extractKey activeEffect: 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.~0.5–0.7%
MadecassosideKey activeEffect: HighAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations~0.2–0.35%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.25–0.45%
Ascorbic acidUnder-dosedThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.3–0.55%
TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.1–0.15%
Anti-blemish
Side benefit · Niacinamide, Retinal + 2 more
Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide, retinal. These ingredients is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~0.7–1.05%
RetinalHeroEffect: HighOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating~0.3–0.5%
Centella asiatica extractEffect: LowA 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.~0.5–0.7%
Beta-glucanEffect: LowHelps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles~0.25–0.45%

Can it cause trouble?

Irritancy
1 strong irritant: Retinal
Medium risk
We flagged 8 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
3-o-ethyl ascorbic acidA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in productsHigh~0.55–0.85%est.
Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~0.3–0.55%est.
RetinalOne step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritatingHigh~0.3–0.5%est.
Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinMedium~6.7–8.2%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~1–1.3%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~0.5–0.7%est.
MadecassosideAn antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulationsMedium~0.2–0.35%est.
EthylhexylglycerinA preservativeMedium~0.1–0.15%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 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
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~2–2.5%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Caprylic/capric triglyceride~6.7–8.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Dipropylheptyl carbonate~4.5–5.4%
Formula
Irritation risk
Low
More about Dipropylheptyl carbonate
Glycerin~3.2–3.9%
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
Glyceryl stearate~2.4–3%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate
Cetearyl alcohol~2–2.5%
Key activeComedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
Works for
CleansingMoisturizing

A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture

More about Cetearyl alcohol
Bifida ferment lysate~1.7–2.1%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidationEvens skin tone

Consists of remains of dead yeast bacteria cells. Helps to hydrate the skin and reduce irritation. Might has some anti-oxidant effect

More about Bifida ferment lysate
Hydrolyzed yeast protein~1.4–1.7%
Formula
Irritation risk
Low
More about Hydrolyzed yeast protein
Butylene glycol~1.2–1.5%
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
Pentylene glycol~1–1.3%
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
Niacinamide~0.7–1.05%
Hero · Moisturizing, Anti-blemish
Irritation risk
Low
Works for
Anti-agingEvens skin toneMoisturizingAnti-blemishReduces irritationAnti-inflammatoryReduces rednessAntibacterial

Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
3-o-ethyl ascorbic acid~0.55–0.85%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-oxidationEvens skin toneAnti-aging

A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products

More about 3-o-ethyl ascorbic acid
Sodium polyacrylate~0.55–0.85%
Formula
Irritation risk
Low
Works for
Mattifying

Used to create a gel-like product texture, as well as to stabilize emulsions

More about Sodium polyacrylate
Sodium hyaluronate~0.5–0.7%
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
Squalane~0.5–0.75%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Phenoxyethanol~0.45–0.7%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Centella asiatica extract~0.5–0.7%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Reduces rednessAnti-inflammatoryMoisturizingReduces irritationAnti-oxidationAnti-agingAnti-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
Phospholipids~0.35–0.65%
Key active
Irritation risk
Low
Works for
Moisturizing

Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product

More about Phospholipids
Ascorbic acid~0.3–0.55%
Under-dosedIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-agingAnti-oxidation

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid
Retinal~0.3–0.5%
Hero · Anti-aging, Evens skin tone, Anti-blemishIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-agingAnti-blemish

One step removed from the biologically active in skin form of vitamin A. Once converted to the retinoic acid in the skin, retinal is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. Concentrations of 0.05% and 0.1% are shown to be effective. It can, however, be irritating

More about Retinal
Beta-glucan~0.25–0.45%
Key active
Irritation risk
Low
Works for
Reduces irritationMoisturizingAnti-inflammatoryAnti-blemishAnti-oxidationAnti-aging

Helps attract water to the upper layer of the skin, calm down inflammation and irritation, restore the barrier function and support wound healing. It can be helpful in reducing fine lines and wrinkles

More about Beta-glucan
Palmitoyl tripeptide-1~0.25–0.5%
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-1
Palmitoyl tetrapeptide-7~0.25–0.5%
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
Carbomer~0.2–0.4%
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
Madecassoside~0.2–0.35%
Hero · MoisturizingIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationMoisturizingAnti-agingEvens skin tone

An antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations

More about Madecassoside
Polysorbate 20~0.2–0.35%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 20
Xanthan gum~0.15–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Ceramide np~0.15–0.3%
Hero · Moisturizing
Irritation risk
Low
Works for
MoisturizingReduces irritationAnti-inflammatory

A type of lipid similar to ceramides naturally present in skin. Helps to soften the upper layer of the skin and supports the skin barrier function to keep it hydrated. Can help to prevent inflammation in skin

More about Ceramide np
Ethylhexylglycerin~0.1–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Ethylhexylglycerin
Tocopherol~0.1–0.15%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Ingredient list view

Water, Caprylic/capric triglyceride, Dipropylheptyl carbonate, Glycerin, Glyceryl stearate, Cetearyl alcohol, Bifida ferment lysate, Hydrolyzed yeast protein, Butylene glycol, Pentylene glycol, Niacinamide, 3-o-ethyl ascorbic acid, Sodium polyacrylate, Sodium hyaluronate, Squalane, Phenoxyethanol, Centella asiatica extract, Phospholipids, Ascorbic acid, Retinal, Beta-glucan, Palmitoyl tripeptide-1, Palmitoyl tetrapeptide-7, Carbomer, Madecassoside, Polysorbate 20, Xanthan gum, Ceramide np, Ethylhexylglycerin, Tocopherol

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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
Cyrène SkincareDiamond Retinal 1YOUR PRODUCTMeditherapyRetinal Skin Booster SerumArenciaRetinal Booster Shot107 BeautySoseo Vinbiome Retinal Serum
Match—81%78%77%
Price—$19.87$13.75$54.00
Shared key ingredients—9 of 158 of 158 of 15
Key difference—Acetyl Hexapeptide-1Hexapeptide-9Adenosine
Irritancy Medium Medium Medium Medium
Drying alcohol————
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Product summary

"Cyrène Skincare - Diamond Retinal 1" is effective for: Anti-aging, Anti-blemish, Moisturizing and Evens skin tone

Ingredient callouts

  • This product also contains Vitamin C (Ascorbic Acid). It can be an effective active for anti-aging and evening out the skin tone, but in this product it is used for stabilizing other ingredients in the formulation. In this concentration (0.30% - 0.55%) it cannot have a noticeable benefit for the skin.
  • This product contains an effective form of Retinoids (vitamin A): retinal 0.30% - 0.50%. Retinoids are potent multitasking actives. They work to improve and prevent early signs of aging, reduce hyperpigmentation (age spots and post-acne marks), and prevent inflamed blemishes and clogged pores. The downside of Retinoids is that they can be irritating. If you are not already using a Retinoid in your routine, it is best to start slowly and apply the Retinoid product only a few times per week. If your skin tolerates it well, you can gradually increase the frequency to daily.
  • Ceramides (ceramide np 0.15% - 0.30%). Ceramides are an important part of our natural skin barrier. The Ceramides used in skincare are synthetic or come from plants. They help soften the skin and can help "fill the gaps" in the skin barrier, keeping the skin hydrated and resilient for longer.
  • Peptides (palmitoyl tetrapeptide-7 0.25% - 0.50% and palmitoyl tripeptide-1 0.25% - 0.50%). There are many different kind of Peptides and they are naturally present in our skin. They all are a combination of aminoacids. Some of them work as natural antibiotics, promote wound-healing and production of collagen. The science is still not settled on how effective Peptides are in skincare, but it is very likely that they have a benefit. They might help restore the skin barrier and fight the signs of aging. At the very least, Peptides work as humectants: they attract water to the upper layer of the skin and improve its hydration.
  • Actives derived from an extract of the Centella Asiatica plant (also known as Gotu Kola) - madecassoside 0.20% - 0.35% The Centella Asiatica Actives help strengthen and restore the skin barrier, decrease inflammation in skin and neutralize free radicals. They also can help to reduce scarring. The good news is that these actives work even in low concentrations.
  • Humectants (sodium hyaluronate 0.50% - 0.70% and glycerin 3.20% - 3.90%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 34 studies and safety reviews.

  1. 1
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  2. 2
    Bifidobacterium longumlysate, a new ingredient forreactive skinonlinelibrary.wiley.com
  3. 3
    Use of Probiotics for Dermal Applicationsresearchgate.net
  4. 4
    Niacinamide - mechanisms of action and its topical use in dermatologyncbi.nlm.nih.gov
  5. 5
    Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x ncbi.nlm.nih.gov
  6. 6
    Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid, a Cosmetic Tyrosinase Inhibitorncbi.nlm.nih.gov
Cyrène Skincare Diamond Retinal 1
Cyrène SkincareDiamond Retinal 1
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