The product you are asking about is likely the CeraVe Acne Foaming Cream Cleanser in a 100ML size.The mention of "CH" is not an official part of the product name but may be a regional acronym, a stock-keeping unit (SKU), or a retail code used by a specific distributor.Here are the key details of the CeraVe Acne Foaming Cream Cleanser:FeatureDetailBrandCeraVeProduct NameAcne Foaming Cream CleanserSize100ML (Often sold in larger sizes like 150ml or 5 oz, but 100ml is available in some regions).Product TypeCream-to-foam facial cleanser and acne treatment.Active IngredientBenzoyl Peroxide (4%) - Used to treat acne by targeting bacteria and clearing pores.Key Supporting Ingredients3 Essential Ceramides (help restore and maintain the skin's natural barrier), Hyaluronic Acid (helps retain the skin's natural moisture), and Niacinamide (helps calm the skin).Skin TypeAcne-prone skin.BenefitsClears acne breakouts (pimples, whiteheads, and blackheads), helps prevent new blemishes from forming, and maintains the skin's protective barrier to prevent dryness or irritation.FormulationDeveloped with dermatologists, non-comedogenic.