Shampoos that are acidic rather than alkaline are

• A. Better for the scalp
• B. Better for the hair
• C. More fragrant
• D. More likely to cause buildup

Answer: (B)

Shampoos with an acidic pH help keep the hair cuticle closed and smooth. When the cuticle lies flat, the hair surface feels softer, looks shinier, and retains moisture better, making the hair easier to manage and less prone to frizz and damage. That direct impact on the hair’s health and appearance is why acidic formulas are considered better for the hair than alkaline ones, which can lift the cuticle and make the hair swell and feel rough. The fragrance and the likelihood of buildup aren’t determined by pH in the same way, and scalp comfort can vary with formulation, so the strongest, most consistent benefit of acidic shampoos is on the hair itself.