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![GHS05 – Corrosive]basf+1
EU Cosmetics Regulation (Annex III) restricts sodium hydroxide to safe, controlled use as a pH buffer, emulsifier aid, and saponification agent in soap, hair, and skin formulations. Always use within technical limits, wear appropriate PPE, and never use undiluted on skin.cosmileeurope+4
Sodium hydroxide is an essential but powerful cosmetic ingredient for soap-making, pH regulation, and ensuring formulation stability in creams, cleansers, and haircare. Strict adherence to concentration limits, safety handling, and protective gear is mandatory. For DIY, non-commercial production by experienced users only.