Does the pH level of salicylic acid products affect their efficacy?
Yes, the efficacy of salicylic acid is pH-dependent. Salicylic acid works best in formulations with a pH between 3 and 4, which ensures it remains in its acid form to effectively penetrate the skin and perform its exfoliating action. Products outside this pH range may not provide the same level of effectiveness in treating acne or exfoliating the skin.
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