Peter Thomas Roth Gel purifiant anti-acné AHA/BHA

Peter Thomas Roth Gel purifiant anti-acné AHA/BHA

Efficacy85/100IrritancyHigh

Works for

Evens skin tone
Glycolic acid, Glycyrrhiza glabra root extract + 1 more
Works well
What the product description says
“Chemically exfoliates to help reduce the look of fine lines, dullness, and uneven skin tone.”
Source: Sephora

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

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: glycyrrhiza glabra root extract.

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.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.4–5.4%
Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~0.2–0.35%
Retinyl palmitateUnder-dosedThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.3–0.6%
Exfoliation
Glycolic acid, Retinyl palmitate
Works well
What the product description says
“Chemically exfoliates to help reduce the look of fine lines, dullness, and uneven skin tone.”
Source: Sephora

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: glycolic acid.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.4–5.4%
Retinyl palmitateEffect: Low, below effective doseThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.3–0.6%
Anti-aging
Glycolic acid, Aloe barbadensis leaf juice + 1 more
Works well
What the product description says
“Chemically exfoliates to help reduce the look of fine lines, dullness, and uneven skin tone.”
Source: Sephora

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

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.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.4–5.4%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.35–0.6%
Retinyl palmitateUnder-dosedThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.3–0.6%
Moisturizing
Glycerin, Arginine + 4 more
Works
What the product description says
“Hydrates and helps calm the look of skin.”
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: arginine, glycerin.

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: arginine, helianthus annuus seed oil.

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~2.4–3%
ArginineKey active· Humectant, OcclusiveEffect: 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~1.9–2.4%
CyclopentasiloxaneKey active· EmollientEffect: MediumA silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin~0.95–1.15%
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~0.25–0.45%
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~1.1–1.4%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.35–0.6%
Anti-blemish
Glycolic acid, Aloe barbadensis leaf juice + 1 more
Not delivered
What the product description says
“Gel purifiant anti-acné AHA/BHA”
From product name

This product contains ingredients (glycolic acid) that could help reduce blemishes and clogged pores in theory, but there is not enough evidence that they actually work.

Glycolic acidEffect: MediumAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~4.4–5.4%
Aloe barbadensis leaf juiceEffect: Low, below effective doseTraditionally 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~0.35–0.6%
Retinyl palmitateUnder-dosedThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.3–0.6%

Can it cause trouble?

Irritancy
12 flagged ingredients — patch-test recommended
High risk
We flagged 12 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
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~8.4–10.3%est.
Glycolic acidAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acidHigh~4.4–5.4%est.
Retinyl palmitateThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effectHigh~0.3–0.6%est.
Arnica montana flower extractA plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skinHigh~0.2–0.35%est.
GlyoxalA preservative. Is a formaldehyde-releaser and can be irritatingHigh~0.05–0.1%est.
T-butyl alcoholUsed to dissolve other ingredients and to improve smell of products. It could be irritatingMedium~0.5–0.75%est.
Potassium sorbateA preservativeMedium~0.3–0.6%est.
Aloe barbadensis leaf juiceTraditionally 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~0.35–0.6%est.
Polysorbate 60Helps oil and water mix togetherMedium~0.3–0.5%est.
Glycyrrhiza glabra root extractA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicalsMedium~0.2–0.35%est.
BhtA preservativeMedium~0.1–0.15%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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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
Alcohol~8.4–10.3%
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
Glycolic acid~4.4–5.4%
Key activeIrritant · high
Irritation risk
High
Works for
ExfoliationAnti-agingEvens skin toneAnti-blemish

An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid

More about Glycolic acid
Sodium hydroxide~3.1–3.8%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Glycerin~2.4–3%
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
Arginine~1.9–2.4%
Key active
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
Hydroxyethylcellulose~1.7–2%
Formula
Irritation risk
Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose
Phenoxyethanol~0.5–1%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Butylene glycol~1.1–1.4%
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
Cyclopentasiloxane~0.95–1.15%
Key active
Irritation risk
Low
Works for
MattifyingMoisturizing

A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin

More about Cyclopentasiloxane
Sodium nitrate~0.5–0.75%
Formula
Irritation risk
Low
More about Sodium nitrate
T-butyl alcohol~0.5–0.75%
Irritant · medium
Irritation risk
Medium

Used to dissolve other ingredients and to improve smell of products. It could be irritating

More about T-butyl alcohol
Potassium sorbate~0.3–0.6%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Aloe barbadensis leaf juice~0.35–0.6%
Irritant · medium
Irritation risk
Medium
Works for
MoisturizingAnti-inflammatoryAntibacterialReduces rednessReduces irritationAnti-agingAnti-blemish

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
Retinyl palmitate~0.3–0.6%
Under-dosedIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-blemishAnti-agingExfoliation

Three steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect

More about Retinyl palmitate
Disodium phosphate~0.35–0.6%
Formula
Irritation risk
Low

Helps adjust the product pH and stabilize the formulation

More about Disodium phosphate
Polysorbate 60~0.3–0.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 60
Helianthus annuus seed oil~0.25–0.45%
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
Arnica montana flower extract~0.2–0.35%
Irritant · high
Irritation risk
High

A plant extract that can be irritating. It can have some anti-bacterial properties, but there are no evidence of a beneficial effect for skin

More about Arnica montana flower extract
Glycyrrhiza glabra root extract~0.2–0.35%
Irritant · medium
Irritation risk
Medium
Works for
Anti-inflammatoryAnti-oxidationEvens skin toneReduces rednessAntibacterial

A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals

More about Glycyrrhiza glabra root extract
Sodium phosphate~0.15–0.3%
Formula
Irritation risk
Low

Helps stabilize the product formulation

More about Sodium phosphate
Denatonium benzoate~0.1–0.2%
Formula
Bht~0.1–0.15%
Irritant · medium
Irritation risk
Medium

A preservative

More about Bht
Glyoxal~0.05–0.1%
Irritant · high
Irritation risk
High

A preservative. Is a formaldehyde-releaser and can be irritating

More about Glyoxal
Citric acid~0.05%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Ingredient list view

Water, Alcohol, Glycolic acid, Sodium hydroxide, Glycerin, Arginine, Hydroxyethylcellulose, Phenoxyethanol, Butylene glycol, Cyclopentasiloxane, Sodium nitrate, T-butyl alcohol, Potassium sorbate, Sodium benzoate, Aloe barbadensis leaf juice, Retinyl palmitate, Disodium phosphate, Polysorbate 60, Helianthus annuus seed oil, Arnica montana flower extract, Glycyrrhiza glabra root extract, Sodium phosphate, Denatonium benzoate, Bht, Glyoxal, Citric acid

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Sephora
$63.00 Out of stock
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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
Peter Thomas RothGel purifiant anti-acné AHA/BHAYOUR PRODUCTNorevaAcnomega 200Skin RegimenGlyco Lacto PeelCeraVeBlemish Control Gel Moisturiser with 2% Salicylic Acid & Niacinamide for Blemish-Prone Skin
Match—61%61%61%
Price—$24.95$89.89$11.89
Shared key ingredients—5 of 62 of 62 of 6
Key difference—Salicylic AcidLactobionic AcidNiacinamide
Irritancy High Medium Low Low
Drying alcohol Contains drying alcohol ———
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 14 studies and safety reviews.

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Peter Thomas Roth Gel purifiant anti-acné AHA/BHA
Peter Thomas RothGel purifiant anti-acné AHA/BHA

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

As an Amazon Associate, WIMJ earns from qualifying purchases.