Peter Thomas Roth Beta Hydroxy Acid 2% Acne Wash

Peter Thomas Roth Beta Hydroxy Acid 2% Acne Wash

Efficacy87/100IrritancyLow

Works for

Anti-blemish
Salicylic acid
Works well
What the product description says
“Beta Hydroxy Acid 2% Acne Wash”
From product name

This product can help reduce breakouts and clogged pores because it contains the following ingredient: salicylic acid. This ingredient is used for treating acne and can have a noticeable effect.

Salicylic acidHeroEffect: HighUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)2%
Cleansing
Sodium laureth sulfate, Lauryl glucoside + 1 more
Can be harsh
What the product description says
“Beta Hydroxy Acid 2% Acne Wash”
From product name

This product works by removing dirt and oil from the surface of the skin.

It contains the following cleansing agents that tend to be harsh on the skin: sodium laureth sulfate.

The following cleansing agents are typically mild, but still can cause an irritation or allergy for some people cocamidopropyl betaine.

Keep in mind that cleansing can disrupt the skin barrier, and most people do not need to cleanse their skin more than once per day.

Sodium laureth sulfateEffect: HighWorks as a foaming cleansing agent~11–16%
Lauryl glucosideEffect: HighHelps oil and water mix together~5.2–7.9%
Cocamidopropyl betaineEffect: HighHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergen~4–5.9%
Exfoliation
Side benefit · Salicylic acid
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: salicylic acid.

Salicylic acidKey activeEffect: HighUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)2%

Can it cause trouble?

Irritancy
5 flagged ingredients
Low risk
We flag 5 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Salicylic acidUsed for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)High2%
Sodium laureth sulfateWorks as a foaming cleansing agentHigh~11–16%est.
Cocamidopropyl betaineHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergenHigh~4–5.9%est.
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~1.6–2.4%est.
Lauryl glucosideHelps oil and water mix togetherMedium~5.2–7.9%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
Sodium laureth sulfateWorks as a foaming cleansing agent2/5~11–16%est.

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Ingredients

Filter by role to see what each ingredient is doing.

Salicylic acid2%
Hero · Anti-blemishIrritant · high
Irritation risk
High
Works for
Anti-blemishExfoliationAnti-inflammatoryAntibacterialEvens skin tone

Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)

More about Salicylic acid
Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Sodium laureth sulfate~11–16%
Comedogenic 2/5Irritant · high
Irritation risk
High
Comedogenicity
2/5
Works for
Cleansing

Works as a foaming cleansing agent

More about Sodium laureth sulfate
Lauryl glucoside~5.2–7.9%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Lauryl glucoside
Cocamidopropyl betaine~4–5.9%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps water and oil mix together. Used as a cleansing ingredient. Could be an allergen

More about Cocamidopropyl betaine
Propylene glycol~1.6–2.4%
Irritant · high
Irritation risk
High
Works for
Moisturizing

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

More about Propylene glycol
Methylparaben~0.15–0.3%
Formula
Irritation risk
Low

A preservative

More about Methylparaben
Allantoin panthenol~0.35–0.85%
Formula
Quaternium-15~0.1–0.2%
Formula
Irritation risk
Low
More about Quaternium-15
Ingredient list view

Salicylic acid, Water, Sodium laureth sulfate, Lauryl glucoside, Cocamidopropyl betaine, Propylene glycol, Methylparaben, Allantoin panthenol, Quaternium-15

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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 RothBeta Hydroxy Acid 2% Acne WashYOUR PRODUCTCLn Skin CareCLn Acne CleanserRevkenDetox Hair Cleansing Cream Clarifying ShampooEucerinDermoPURIFYER Cleansing Gel
Match—89%82%81%
Price——$31.00$19.41
Shared key ingredients—3 of 44 of 42 of 4
Key difference—Cocamide MeaKaolinSodium Cocoamphoacetate
Irritancy Low Low High Low
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 7 studies and safety reviews.

  1. 1
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  3. 3
  4. 4
  5. 5
  6. 6
    Propylene Glycolpubmed.ncbi.nlm.nih.gov
Peter Thomas Roth Beta Hydroxy Acid 2% Acne Wash
Peter Thomas RothBeta Hydroxy Acid 2% Acne Wash

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