Skin Perfecting 4% BHA Advanced Exfoliating Serum Toner

Paula's Choice Skin Perfecting 4% BHA Advanced Exfoliating Serum Toner is an excellent serum with an overall score of 8.5/9.8. Positioned in the mid-range bracket, it delivers a well-rounded formulation that balances efficacy with gentleness. The formula leads with Butylene Glycol, Dimethicone, Salicylic Acid — ingredients that support the skin barrier and moisture levels.

It performs well on hydration (6.6) and low irritation risk (9.5).

Is this right for you?

Great for

• ✓Sensitive skin — low irritation risk with a gentle formulation
• ✓Safety-conscious shoppers — clean formulation with minimal flags
• ✓Ingredient-aware buyers — transparent, well-documented formula

Key ingredients

• ✶
  Butylene Glycol

  Draws in moisture — #2 in the INCI list

• ✶
  Dimethicone

  Softens and smooths — #3 in the INCI list

• ✶
  Salicylic Acid

  Works on your skin — #4 in the INCI list

• ✶
  Glycerin

  Draws in moisture — #6 in the INCI list

• ✶
  Adenosine

  Works on your skin — #8 in the INCI list