How to use them
Use them in the same routine morning or night. Apply Benzoyl Peroxide first, then Kojic Acid, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Benzoyl Peroxide2.5% – 5%, wait about 1 minute
- 3Kojic Acid1% – 2%
- 4Moisturiserseal everything in
What Benzoyl Peroxide does
It kills acne-causing bacteria (C. acnes) by releasing oxygen into the pore. It works fast on inflamed pimples, but it is drying and can bleach towels and pillowcases.
- Typical strength
- 2.5% – 5%
- When
- AM/PM
- Irritation
- Best for
- Oily And Combination skin
Everything that pairs with Benzoyl Peroxide →
What Kojic Acid does
Derived from fungi used in rice wine and soy sauce production, kojic acid blocks the enzyme that makes melanin. It is effective on dark spots but can cause contact sensitivity in some people.
- Typical strength
- 1% – 2%
- When
- AM/PM
- Irritation
- Best for
- Normal, Oily And Combination skin
Everything that pairs with Kojic Acid →
Frequently asked questions
Can I use Benzoyl Peroxide and Kojic Acid together?
Yes, it is safe. There is no known chemical conflict between Benzoyl Peroxide and Kojic Acid, and neither makes the other less effective.
Which goes first, Benzoyl Peroxide or Kojic Acid?
Apply Benzoyl Peroxide first, then Kojic Acid. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Benzoyl Peroxide in the morning or at night?
Benzoyl Peroxide: works morning or night. 2.5% works about as well as 10% and irritates less. Use as a short-contact wash or a spot treatment, and keep it away from fabrics.
Should I use Kojic Acid in the morning or at night?
Kojic Acid: works morning or night. Patch test first. Use once daily at first, then build up.
Is Benzoyl Peroxide with Kojic Acid safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Benzoyl Peroxide and Kojic Acid. Check with your doctor.