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Youth To The People 15% Vitamin C + Clean Caffeine Energy Serum
Youth To The People

Youth To The People 15% Vitamin C + Clean Caffeine Energy Serum

Efficacy100/100IrritancyMedium
See all ingredients

Works for

Evens skin tone
3-o-ethyl ascorbic acid, Tetrahexyldecyl ascorbate + 2 more
Works well
What the product description says
“A 15% Vitamin C Serum boosted with clean caffeine to brighten, visibly reduce hyperpigmentaiton, even tone, firm the look of skin, and depuff.”
Source: Sephora New Zealand

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: gluconolactone, tetrahexyldecyl ascorbate

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.

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.

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~7.6–9.3%
Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~4.5–5.6%
GluconolactoneKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~1.1–1.4%
Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~0.6–0.9%
Anti-oxidation
Side benefit · 3-o-ethyl ascorbic acid, Tetrahexyldecyl ascorbate + 5 more
Works well

This product contains antioxidants (tetrahexyldecyl ascorbate) 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, gluconolactone, ilex paraguariensis leaf extract also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

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~7.6–9.3%
Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~4.5–5.6%
GluconolactoneKey activeEffect: MediumA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~1.1–1.4%
Ilex paraguariensis leaf extractKey activeEffect: MediumA plant extract that can help neutralize free radicals in skin. Can contain fragrand compounds like linalool that can be irritating~0.25–0.4%
CaffeineEffect: LowMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes~0.6–0.9%
Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~0.6–0.9%
ErgothioneineUnder-dosedCan help neutralize free radicals in skin. Preliminary studies show that it can be more effective than coenzyme Q10 but studies on effective concentration for topical applications are lacking~0.05–0.1%
Exfoliation
Side benefit · Gluconolactone
Works well

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: gluconolactone.

GluconolactoneKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~1.1–1.4%
Anti-aging
Side benefit the brand mentions · Tetrahexyldecyl ascorbate, Gluconolactone + 3 more
Works well
What the product description says
“A 15 percent vitamin C serum boosted with caffeine to visibly brighten, reduce hyperpigmentation, even tone, firm the look of skin, and depuff.”
Source: Sephora

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains gluconolactone, tetrahexyldecyl ascorbate.

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.

Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~4.5–5.6%
GluconolactoneKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~1.1–1.4%
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~7.6–9.3%
Ilex paraguariensis leaf extractEffect: LowA plant extract that can help neutralize free radicals in skin. Can contain fragrand compounds like linalool that can be irritating~0.25–0.4%
Magnesium ascorbyl phosphateEffect: Low, below effective doseA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high~0.6–0.9%
Moisturizing
Side benefit the brand mentions · Glycerin, Squalane + 7 more
Works
What the product description says
“High in antioxidants to help scavenge for free radicals and replenish moisture.”
Source: Sephora

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, mannitol.

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: squalane, pentylene glycol.

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~2.8–3.4%
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.~1.7–2.1%
GluconolactoneKey activeEffect: HighA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals~1.1–1.4%
Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.6–0.9%
Lauroyl lysineKey activeEffect: MediumHelps soften the upper layer of the skin and creates a nice product texture~0.35–0.6%
MannitolKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin~0.25–0.45%
Pentylene glycol· EmollientEffect: LowUsed to preserve products, dissolve other ingredients and create a nice product texture~2.3–2.8%
Calcium gluconate· HumectantEffect: LowHelps attract water to the upper layer of the skin and helps to improve appearance of the product~0.2–0.35%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.35–0.6%

Can it cause trouble?

Irritancy
2 strong irritants: Ilex paraguariensis leaf extract, Zingiber officinale root oil
Medium risk
We flagged 16 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~7.6–9.3%est.
Ilex paraguariensis leaf extractA plant extract that can help neutralize free radicals in skin. Can contain fragrand compounds like linalool that can be irritatingHigh~0.25–0.4%est.
PullulanCreates a thin drying film on the skin resulting in a short-term tightening effectHigh~0.25–0.45%est.
Zingiber officinale root oilAn essential oil that is likely to be irritating and can cause photosensitivityHigh~0.15–0.25%est.
Tetrahexyldecyl ascorbateBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.Medium~4.5–5.6%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~2.3–2.8%est.
Sodium citrateHelps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve productsMedium~1.8–2.2%est.
Triethyl citrateUsed as a fragrance. Rarely causes irritationMedium~1.3–1.6%est.
GluconolactoneA polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicalsMedium~1.1–1.4%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.95–1.2%est.
Polyhydroxystearic acidUsed to create a thicker product consistency and stabilize the formulationMedium~0.8–1.2%est.
Polyglyceryl-6 polyricinoleateHelps oil and water mix togetherMedium~0.75–1.15%est.
CaffeineMight be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyesMedium~0.6–0.9%est.
Magnesium ascorbyl phosphateA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very highMedium~0.6–0.9%est.
Sodium stearoyl glutamateHelps oil and water mix togetherMedium~0.6–0.85%est.
Potassium sorbateA preservativeMedium~0.15–0.25%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
Cheaper, or higher on efficacy
Vitamin C 20 Booster
colibri skincare Vitamin C 20 Booster
Cheaper54% match
$24.64
Pro C Serum
INNBEAUTY PROJECT Pro C Serum
Cheaper52% match
$64.00
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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
3-o-ethyl ascorbic acid~7.6–9.3%
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
Tetrahexyldecyl ascorbate~4.5–5.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-agingEvens skin toneAnti-oxidation

Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.

More about Tetrahexyldecyl ascorbate
Propanediol~3.3–4.1%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Glycerin~2.8–3.4%
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
Pentylene glycol~2.3–2.8%
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
Sodium citrate~1.8–2.2%
Irritant · medium
Irritation risk
Medium

Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products

More about Sodium citrate
Squalane~1.7–2.1%
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
Triethyl citrate~1.3–1.6%
Irritant · medium
Irritation risk
Medium

Used as a fragrance. Rarely causes irritation

More about Triethyl citrate
Gluconolactone~1.1–1.4%
Key activeIrritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-agingEvens skin toneExfoliationAnti-blemishAnti-oxidation

A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals

More about Gluconolactone
Citric acid~0.95–1.2%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Polyhydroxystearic acid~0.8–1.2%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used to create a thicker product consistency and stabilize the formulation

More about Polyhydroxystearic acid
Polyglyceryl-6 polyricinoleate~0.75–1.15%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polyglyceryl-6 polyricinoleate
Xanthan gum~0.65–1%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Sodium hyaluronate~0.6–0.9%
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
Caffeine~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
De-puffingAnti-oxidation

Might be helpful in neutralizing free radicals. Can have a dehydration effect that might somewhat decrease the look of puffy eyes

More about Caffeine
Magnesium ascorbyl phosphate~0.6–0.9%
Irritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-agingAnti-oxidation

A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high

More about Magnesium ascorbyl phosphate
Sodium stearoyl glutamate~0.6–0.85%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium stearoyl glutamate
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Lauroyl lysine~0.35–0.6%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps soften the upper layer of the skin and creates a nice product texture

More about Lauroyl lysine
Passiflora edulis fruit extract~0.35–0.6%
Formula
Irritation risk
Low
More about Passiflora edulis fruit extract
Sclerotium gum~0.3–0.55%
Formula
Irritation risk
Low

Used to create gel-like formulas and stabilize emulsions

More about Sclerotium gum
Lecithin~0.35–0.6%
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
Ilex guayusa leaf extract~0.3–0.55%
Formula
Irritation risk
Low
More about Ilex guayusa leaf extract
Ilex paraguariensis leaf extract~0.25–0.4%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-oxidationAnti-aging

A plant extract that can help neutralize free radicals in skin. Can contain fragrand compounds like linalool that can be irritating

More about Ilex paraguariensis leaf extract
Pullulan~0.25–0.45%
Irritant · high
Irritation risk
High
Works for
Mattifying

Creates a thin drying film on the skin resulting in a short-term tightening effect

More about Pullulan
Mannitol~0.25–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin

More about Mannitol
Hylocereus undatus fruit extract~0.2–0.4%
Formula
Irritation risk
Low
More about Hylocereus undatus fruit extract
Zingiber officinale root oil~0.15–0.25%
Irritant · high
Irritation risk
High

An essential oil that is likely to be irritating and can cause photosensitivity

More about Zingiber officinale root oil
Calcium gluconate~0.2–0.35%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and helps to improve appearance of the product

More about Calcium gluconate
Silica~0.25–0.45%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Potassium sorbate~0.15–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Phenoxyethanol~0.1–0.2%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Ergothioneine~0.05–0.1%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidation

Can help neutralize free radicals in skin. Preliminary studies show that it can be more effective than coenzyme Q10 but studies on effective concentration for topical applications are lacking

More about Ergothioneine
Ingredient list view

Water, 3-o-ethyl ascorbic acid, Tetrahexyldecyl ascorbate, Propanediol, Glycerin, Pentylene glycol, Sodium citrate, Squalane, Triethyl citrate, Gluconolactone, Citric acid, Polyhydroxystearic acid, Polyglyceryl-6 polyricinoleate, Xanthan gum, Sodium hyaluronate, Caffeine, Magnesium ascorbyl phosphate, Sodium stearoyl glutamate, Sodium benzoate, Lauroyl lysine, Passiflora edulis fruit extract, Sclerotium gum, Lecithin, Ilex guayusa leaf extract, Ilex paraguariensis leaf extract, Pullulan, Mannitol, Hylocereus undatus fruit extract, Zingiber officinale root oil, Calcium gluconate, Silica, Potassium sorbate, Phenoxyethanol, Ergothioneine

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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
Youth To The People15% Vitamin C + Clean Caffeine Energy SerumYOUR PRODUCTcolibri skincareVitamin C 20 BoosterINNBEAUTY PROJECTPro C SerumDEZI SKINCLARO QUE C - Vitamin C Glow Serum
Match—54%52%50%
Price—$24.64$64.00$68.00
Shared key ingredients—3 of 106 of 103 of 10
Key difference—3-Glyceryl AscorbateNiacinamideVitamin C
Irritancy Medium Low Medium Medium
Drying alcohol————
View product Shop Shop Shop
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Product summary

"Youth To The People - 15% Vitamin C + Clean Caffeine Energy Serum" is effective for: Anti-aging, Evens skin tone, Exfoliation and Anti-oxidation

This product could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • This product contains acids (gluconolactone 1.10% - 1.40%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). PHAs (gluconolactone) especially are great for improving skin hydration. They might be even able to stimulate the production of skin's natural humectants and support the healthy skin microbiome.
  • Humectants (mannitol 0.25% - 0.45%, sodium hyaluronate 0.60% - 0.90% and glycerin 2.70% - 3.40%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "Youth To The People" is cruelty free and so is its parent company.

Price

The product retails for 68.00$ in the United States, from 59.00£ up to 105.00£ in the United Kingdom, for 110.00A$ in Australia, for 88.00CA$ in Canada and for 127.00NZ$ in New Zealand.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 26 studies and safety reviews.

  1. 1
    Antioxidant Ability and Stability Studies of 3-O-Ethyl Ascorbic Acid, a Cosmetic Tyrosinase Inhibitorncbi.nlm.nih.gov
  2. 2
    Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamagencbi.nlm.nih.gov
  3. 3
    Application of tetra-isopalmitoyl ascorbic acid in cosmetic formulations: Stability studies and in vivo efficacysciencedirect.com
  4. 4
    Glycerol and the skin: holistic approach to its origin and functionsncbi.nlm.nih.gov
  5. 5
    Citric Acid, Inorganic Citrate Salts and Alkyl Citrate Esters As Used in Cosmetics cir-safety.org
  6. 6
    A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acnencbi.nlm.nih.gov
Youth To The People 15% Vitamin C + Clean Caffeine Energy Serum
Youth To The People15% Vitamin C + Clean Caffeine Energy Serum
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As an Amazon Associate, WIMJ earns from qualifying purchases.