1% Retinol Booster

Tracked ingredients

Key actives from our research database. Click any to read the full evidence dossier.

Layering conflicts

Ingredients in this product that can react with common actives. Avoid stacking unless noted.

• Salicylic Acidhigh

  Retinol + salicylic acid can over-exfoliate and damage the barrier. Alternate nights.

• Glycolic Acidhigh

  Retinol + glycolic acid is a classic barrier-buster. Use on different nights.

• Lactic Acidmedium

  Retinol + lactic acid is gentler than glycolic but still alternate nights to be safe.

• Mandelic Acidmedium

  Retinol + mandelic acid — alternate nights to preserve barrier integrity.

• Benzoyl Peroxidemedium

  Benzoyl peroxide can break down retinol. Use one in the morning and the other at night, or pick a stabilized formula made to combine them.

• Niacinamidelow

  Sensitive skin may flush.