La Roche-Posay Effaclar Dual Action Acne Face Wash With 4% Benzoyl Peroxide

La Roche-Posay Effaclar Dual Action Acne Face Wash With 4% Benzoyl Peroxide

Efficacy100/100IrritancyMedium

Works for

Anti-blemish
Benzoyl peroxide, Niacinamide + 2 more
Works well
What the product description says
“From the skincare brand recommended by 100,000 dermatologists worldwide, La Roche-Posay's dual action acne cleanser thoroughly removes excess oil, while clearing acne blemishes and helping prevent new acne formation.”
Source: La roche posay US

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

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: capryloyl salicylic acid, glycolic acid

Benzoyl peroxideHeroEffect: HighA potent anti-bacterial ingredient that is effective against acne. Often leads to skin dryness and can be irritating4%
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~1–1.3%
Capryloyl salicylic acidKey activeEffect: Medium~0.65–1%
Glycolic acidKey activeEffect: 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~0.15–0.3%
Cleansing
Cocamidopropyl hydroxysultaine, Sodium c14-16 olefin sulfonate + 3 more
Cleanses gently
What the product description says
“Effaclar Dual Action Acne Face Wash With 4% Benzoyl Peroxide”
Source: La roche posay US

This product works by removing dirt and oil from the surface of the skin. It uses a combination of mild cleansing agents (carbomer, cocamidopropyl hydroxysultaine, diethylhexyl sodium sulfosuccinate, sodium c14-16 olefin sulfonate, xanthan gum) and should be able to cleanse the skin gently. Still keep in mind that any cleansing can disrupt the skin barrier, and most people do not need to cleanse their skin more than once per day.

Even though this formulation is mild, the following cleansing agents could trigger an irritation or allergy for some people: sodium c14-16 olefin sulfonate

Cocamidopropyl hydroxysultaineEffect: HighUsed as a cleansing agent. Helps water and oil mix together~4.7–5.7%
Sodium c14-16 olefin sulfonateEffect: HighHelps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skin~2.8–3.4%
Xanthan gumEffect: HighUsed to create a thicker product consistency~1.8–2.2%
Diethylhexyl sodium sulfosuccinateEffect: High~0.6–0.9%
CarbomerEffect: HighHelps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations~0.45–0.65%
Exfoliation
Capryloyl salicylic acid, Glycolic acid
Works well
What the product description says
“Formulated with 4% benzoyl peroxide and 0.1% micro-exfoliating LHA, this face wash also visibly evens skin texture and renews skin.”
Source: La roche posay US

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: capryloyl salicylic acid, glycolic acid.

Capryloyl salicylic acidKey activeEffect: High~0.65–1%
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~0.15–0.3%

Can it cause trouble?

Irritancy
1 strong irritant: Benzoyl peroxide
Medium risk
We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Benzoyl peroxideA potent anti-bacterial ingredient that is effective against acne. Often leads to skin dryness and can be irritatingHigh4%
Propylene glycolHelps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritatingHigh~4.8–5.9%est.
Sodium c14-16 olefin sulfonateHelps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skinHigh~2.8–3.4%est.
Capryloyl salicylic acid—High~0.65–1%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~0.15–0.3%est.
Cocamidopropyl hydroxysultaineUsed as a cleansing agent. Helps water and oil mix togetherMedium~4.7–5.7%est.
Potassium hydroxideUsed to adjust the pH level of productsMedium~1.6–1.9%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~1.1–1.4%est.
Benzoic acidA preservativeMedium~0.25–0.5%est.
Pentylene glycolUsed to preserve products, dissolve other ingredients and create a nice product textureMedium~0.35–0.65%est.
Tetrasodium edtaHelps to stabilize the product formulationMedium~0.15–0.25%est.
Trisodium ethylenediamine disuccinateUsed to improve stability of the formulationMedium~0.1–0.2%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.1–0.15%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Benzoyl peroxide4%
Hero · Anti-blemishIrritant · high
Irritation risk
High
Works for
Anti-blemish

A potent anti-bacterial ingredient that is effective against acne. Often leads to skin dryness and can be irritating

More about Benzoyl peroxide
Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~6–7.3%
Formula
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
Propylene glycol~4.8–5.9%
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
Cocamidopropyl hydroxysultaine~4.7–5.7%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Used as a cleansing agent. Helps water and oil mix together

More about Cocamidopropyl hydroxysultaine
Sodium c14-16 olefin sulfonate~2.8–3.4%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skin

More about Sodium c14-16 olefin sulfonate
Xanthan gum~1.8–2.2%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Potassium hydroxide~1.6–1.9%
Irritant · medium
Irritation risk
Medium

Used to adjust the pH level of products

More about Potassium hydroxide
Sodium chloride~1.4–1.7%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Sodium citrate~1.1–1.4%
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
Niacinamide~1–1.3%
Hero · Anti-blemish
Irritation risk
Low
Works for
Anti-blemishAnti-agingEvens skin toneMoisturizingReduces irritationAntibacterialReduces rednessAnti-inflammatory

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
Sodium hyaluronate~0.75–1.15%
Formula
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
Capryloyl salicylic acid~0.65–1%
Key activeIrritant · high
Irritation risk
High
Works for
ExfoliationAnti-blemishEvens skin tone
More about Capryloyl salicylic acid
Propanediol~0.6–0.9%
Formula
Irritation risk
Low

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

More about Propanediol
Diethylhexyl sodium sulfosuccinate~0.6–0.9%
Formula
Irritation risk
Low
Works for
Cleansing
More about Diethylhexyl sodium sulfosuccinate
Carbomer~0.45–0.65%
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
Benzoic acid~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Benzoic acid
Pentylene glycol~0.35–0.65%
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 hydroxide~0.2–0.4%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Glycolic acid~0.15–0.3%
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
Tetrasodium edta~0.15–0.25%
Irritant · medium
Irritation risk
Medium

Helps to stabilize the product formulation

More about Tetrasodium edta
Trisodium ethylenediamine disuccinate~0.1–0.2%
Irritant · medium
Irritation risk
Medium

Used to improve stability of the formulation

More about Trisodium ethylenediamine disuccinate
Citric acid~0.1–0.15%
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

Benzoyl peroxide, Water, Glycerin, Propylene glycol, Cocamidopropyl hydroxysultaine, Sodium c14-16 olefin sulfonate, Xanthan gum, Potassium hydroxide, Sodium chloride, Sodium citrate, Niacinamide, Sodium hyaluronate, Capryloyl salicylic acid, Propanediol, Diethylhexyl sodium sulfosuccinate, Carbomer, Benzoic acid, Pentylene glycol, Sodium hydroxide, Glycolic acid, Tetrasodium edta, Trisodium ethylenediamine disuccinate, Citric acid

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La roche posay US
$19.99
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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
La Roche-PosayEffaclar Dual Action Acne Face Wash With 4% Benzoyl PeroxideYOUR PRODUCTCeraVeAcne Foaming Cream CleanserSkinfixAcne+ 2% BHA CleanserTulaAcne Spot Treatment
Match—90%74%73%
Price$19.99$13.62−$6.37$10.00−$9.99$42.85+$22.86
Shared key ingredients—10 of 115 of 116 of 11
Key difference—PhytosphingosineAzelaic AcidAzelaic Acid
Irritancy Medium Medium Low Medium
Drying alcohol————
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La Roche-Posay Effaclar Dual Action Acne Face Wash With 4% Benzoyl Peroxide
La Roche-PosayEffaclar Dual Action Acne Face Wash With 4% Benzoyl Peroxide

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