CosMedix Defy Triple Hydroxy Acid Age-Defying Treatment

CosMedix Defy Triple Hydroxy Acid Age-Defying Treatment

Efficacy91/100IrritancyHigh

Works for

Exfoliation
Lactic acid, Tartaric acid + 1 more
Works well
What the product description says
“It uses three gentle AHA's to eliminate dull, dead skin and soothing ingredients like aloe and olive oil to hydrate and calm the skin.”
Source: SkincareRX

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: lactic acid.

Lactic acidKey activeEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~4.3–6.5%
Tartaric acidKey activeEffect: MediumAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels~0.85–1.3%
AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.05–0.25%
Evens skin tone
Lactic acid
Works well
What the product description says
“The treatment reduces the appearance of pigmentation, dark spots and scarring to even the skin tone.”
Source: Lookfantastic CA

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

Lactic acidKey activeEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~4.3–6.5%
Moisturizing
Lactic acid, Caprylic/capric triglyceride + 13 more
Works
What the product description says
“Defy Triple Hydroxy Acid Age-Defying Treatment”
From product name

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, lactic acid.

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, helianthus annuus seed oil.

Lactic acidKey active· HumectantEffect: HighAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~4.3–6.5%
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~3.8–5.7%
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~2.2–3.2%
Cetearyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture~1.8–2.6%
Tartaric acidKey activeEffect: MediumAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels~0.85–1.3%
Cetyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together~0.45–1.05%
Helianthus annuus seed oilKey active· Emollient, OcclusiveEffect: HighA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~0.35–0.8%
Olea europaea fruit oilKey active· EmollientEffect: MediumAn emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation~0.35–0.85%
Prunus amygdalus dulcis oilKey active· EmollientEffect: MediumAn emollient that softens the skin~0.2–0.75%
Glycine soja oilKey active· EmollientEffect: HighA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.~0.15–0.5%
Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~2.5–3.8%
Aloe barbadensis leaf juice powderEffect: LowTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin~0.2–0.75%
Stearic acidEffect: Low, below effective doseHelps oil and water mix together and works as an emollient~0.5–1.2%
LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.05–0.3%
AllantoinUnder-dosedHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.05–0.25%
Anti-aging
Lactic acid, Prunus amygdalus dulcis oil
May help
What the product description says
“Exfoliation doesn't need to be harsh!Who is this for?Ideal for those of all skin types, especially damaged, dehydrated, aging and acne-prone skin who want smoother, clearer and softer skin.”
Source: SkincareRX

This product contains lactic acid. This ingredient 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.

Lactic acidKey activeEffect: MediumAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~4.3–6.5%
Prunus amygdalus dulcis oilEffect: LowAn emollient that softens the skin~0.2–0.75%

Can it cause trouble?

Irritancy
4 strong irritants: Hamamelis virginiana water, Citrus grandis peel oil + 2 more — patch-test recommended
High risk
We flagged 14 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.5–1%est.
Hamamelis virginiana waterA plant extract that can help calm down inflammation in skin. Can, however, itself be irritatingHigh~0.2–0.8%est.
Citrus grandis peel oilA plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skinHigh~0.1–0.45%est.
Prunus persica fruit extractA fruit extact. Might have some anti-oxidant propertiesHigh~0.15–0.6%est.
Cananga odorata flower oilAn essential oil. Can be irritatingHigh~0.05–0.3%est.
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~0.05–0.25%est.
Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Medium~4.3–6.5%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~3.8–5.7%est.
Polysorbate 60Helps oil and water mix togetherMedium~1.5–2.2%est.
Tartaric acidAn AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levelsMedium~0.85–1.3%est.
Olea europaea fruit oilAn emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammationMedium~0.35–0.85%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.3–0.75%est.
Aloe barbadensis leaf juice powderTraditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skinMedium~0.2–0.75%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.Medium~0.15–0.5%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
Cetearyl alcoholA non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture2/5~1.8–2.6%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.2/5~0.15–0.5%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
Lactic acid~4.3–6.5%
Key activeIrritant · medium
Irritation risk
Medium
Works for
ExfoliationMoisturizingEvens skin toneAnti-aging

An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)

More about Lactic acid
Caprylic/capric triglyceride~3.8–5.7%
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
Glyceryl stearate~2.5–3.8%
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
Glycerin~2.2–3.2%
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
Cetearyl alcohol~1.8–2.6%
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
Polysorbate 60~1.5–2.2%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 60
Benzyl alcohol~0.5–1%
Irritant · high
Irritation risk
High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol
Albumen~1.1–1.6%
Formula
Irritation risk
Low
More about Albumen
Tartaric acid~0.85–1.3%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationExfoliationMoisturizing

An AHA (alpha-hydroxy acid). It oxidizes quickly which makes it less effective in skincare formulations. It can support skin's barrier and moisture levels

More about Tartaric acid
Malic acid~0.5–1.2%
Formula
Irritation risk
Low

Helps adjust the product pH

More about Malic acid
Stearic acid~0.5–1.2%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Helps oil and water mix together and works as an emollient

More about Stearic acid
Cetyl alcohol~0.45–1.05%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together

More about Cetyl alcohol
Olea europaea fruit oil~0.35–0.85%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation

More about Olea europaea fruit oil
Hamamelis virginiana water~0.2–0.8%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

A plant extract that can help calm down inflammation in skin. Can, however, itself be irritating

More about Hamamelis virginiana water
Helianthus annuus seed oil~0.35–0.8%
Key active
Irritation risk
Low
Works for
Moisturizing

A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function

More about Helianthus annuus seed oil
Tocopheryl acetate~0.3–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Aloe barbadensis leaf juice powder~0.2–0.75%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin

More about Aloe barbadensis leaf juice powder
Prunus amygdalus dulcis oil~0.2–0.75%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidationAnti-aging

An emollient that softens the skin

More about Prunus amygdalus dulcis oil
Bisabolol~0.1–0.5%
Formula
Irritation risk
Low
Works for
Reduces irritationAnti-inflammatoryAnti-oxidation

An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties

More about Bisabolol
Citrus grandis peel oil~0.1–0.45%
Irritant · high
Irritation risk
High

A plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skin

More about Citrus grandis peel oil
Glycine soja oil~0.15–0.5%
Key activeComedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.

More about Glycine soja oil
Prunus persica fruit extract~0.15–0.6%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A fruit extact. Might have some anti-oxidant properties

More about Prunus persica fruit extract
Cananga odorata flower oil~0.05–0.3%
Irritant · high
Irritation risk
High

An essential oil. Can be irritating

More about Cananga odorata flower oil
Allantoin~0.05–0.25%
Under-dosed
Irritation risk
Low
Works for
MoisturizingAnti-inflammatoryReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin
Alcohol~0.05–0.25%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Fullerenes~0.05–0.2%
Formula
Irritation risk
Low
More about Fullerenes
Lecithin~0.05–0.3%
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
Ingredient list view

Water, Lactic acid, Caprylic/capric triglyceride, Glyceryl stearate, Glycerin, Cetearyl alcohol, Polysorbate 60, Benzyl alcohol, Albumen, Tartaric acid, Malic acid, Stearic acid, Cetyl alcohol, Olea europaea fruit oil, Hamamelis virginiana water, Helianthus annuus seed oil, Tocopheryl acetate, Aloe barbadensis leaf juice powder, Prunus amygdalus dulcis oil, Bisabolol, Citrus grandis peel oil, Glycine soja oil, Prunus persica fruit extract, Cananga odorata flower oil, Allantoin, Alcohol, Fullerenes, Lecithin

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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
CosMedixDefy Triple Hydroxy Acid Age-Defying TreatmentYOUR PRODUCTShani Darden Skin CareLactic Acid Exfoliating SerumZO Skin HealthExfoliation AcceleratorMake BeautyLactic Acid + Vitamin C Serum
Match—68%63%63%
Price—$73.04$92.00—
Shared key ingredients—4 of 63 of 63 of 6
Key difference—GluconolactoneRetinyl PalmitateNiacinamide
Irritancy High Medium Medium Medium
Drying alcohol Contains drying alcohol ———
View product Shop Shop Shop

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 15 studies and safety reviews.

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CosMedix Defy Triple Hydroxy Acid Age-Defying Treatment
CosMedixDefy Triple Hydroxy Acid Age-Defying Treatment

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As an Amazon Associate, WIMJ earns from qualifying purchases.