CeraVe Acne Foaming Cream Cleanser (4% Benzoyl Peroxide)

Benzoyl Peroxide is the active acne-fighting ingredient in this product. While effective against acne-causing bacteria, it has been shown to spontaneously decompose into benzene — a Group 1 carcinogen — particularly at warmer temperatures during shipping, storage, and on bathroom shelves. The 4% concentration is the lowest tier of BPO acne products but still generates benzene.

Propylene glycol is a synthetic humectant and penetration enhancer. It can cause contact dermatitis in sensitive individuals and increases the skin absorption of other ingredients, including the carcinogen contamination here.

Harsh sulfate surfactant — more aggressive than SLS. Strips the skin lipid barrier and is a documented irritant with repeated use.

Preservative restricted by the EU at higher use levels over infant neurotoxicity concerns; peer-reviewed studies report toxicity to human gland cells at approved concentrations.

Chelator that also acts as a penetration enhancer — pushes other ingredients (including any benzene present) deeper into the skin.

Foam-boosting surfactant with documented skin and eye irritation; EWG flags it for manufacturing contamination concerns.

Beneficial ingredient — whole-food or functional value in this product class.

Ceramides are lipids naturally present in the skin barrier; topical application helps restore and maintain barrier function. CeraVe's three-ceramide complex is a well-formulated barrier-supporting blend.

Niacinamide (vitamin B3) is a well-tolerated, evidence-backed ingredient that calms inflammation, supports the skin barrier, and helps regulate sebum production — all relevant to acne-prone skin.

Sodium hyaluronate is a humectant that attracts and holds water in the skin, helping to offset the drying effect of benzoyl peroxide. It is well tolerated and non-irritating.