How to use them
Use them in the same routine in the morning. Apply Ferulic Acid first, then Kojic Acid, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Ferulic Acid0.5%, wait about 1 minute
- 3Kojic Acid1% – 2%
- 4Moisturiserthen SPF 50 in the morning
What Ferulic Acid does
A plant antioxidant best known for stabilising vitamins C and E. Together the trio roughly doubles photoprotection compared with vitamin C alone.
- Typical strength
- 0.5%
- When
- AM
- Irritation
- Best for
- Normal, Dry, Combination And Oily skin
Everything that pairs with Ferulic Acid →
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 Ferulic Acid and Kojic Acid together?
Yes, it is safe. There is no known chemical conflict between Ferulic Acid and Kojic Acid, and neither makes the other less effective.
Which goes first, Ferulic Acid or Kojic Acid?
Apply Ferulic Acid first, then Kojic Acid. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Ferulic Acid in the morning or at night?
Ferulic Acid: best in the morning. Use in the morning under sunscreen, ideally in a combined C + E + Ferulic serum.
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 Ferulic Acid with Kojic Acid safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Kojic Acid. Check with your doctor.