How to use them
Use them in the same routine morning or night. Apply Kojic Acid first, then PDRN, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Kojic Acid1% – 2%, wait about 1 minute
- 3PDRNvaries (often with PN/polynucleotides blends)
- 4Moisturiserseal everything in
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 →
What PDRN does
Polydeoxyribonucleotide, a salmon-DNA-derived ingredient best known from in-clinic "salmon DNA" injections and now sold in serums. Early clinical studies suggest it may support tissue repair and hydration, but topical (as opposed to injected) evidence is still limited, so treat claims of dramatic results with caution.
- Typical strength
- varies (often with PN/polynucleotides blends)
- When
- AM/PM
- Irritation
- Best for
- Normal, Dry, Sensitive And Combination skin
Everything that pairs with PDRN →
Frequently asked questions
Can I use Kojic Acid and PDRN together?
Yes, it is safe. There is no known chemical conflict between Kojic Acid and PDRN, and neither makes the other less effective.
Which goes first, Kojic Acid or PDRN?
Apply Kojic Acid first, then PDRN. The general rule is thinnest to thickest texture, and lowest pH first.
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.
Should I use PDRN in the morning or at night?
PDRN: works morning or night. Use as a serum step, morning or night. It has no known irritancy, so it layers easily with most other actives. It is not a substitute for an in-clinic PDRN treatment, which uses injectable-grade material under medical supervision.
Is Kojic Acid with PDRN safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for Kojic Acid and PDRN. Check with your doctor.