How to use them
Use them in the same routine in the morning. Apply Ferulic Acid first, then PDRN, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Ferulic Acid0.5%, wait about 1 minute
- 3PDRNvaries (often with PN/polynucleotides blends)
- 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 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 →
Trying to choose one? Read Ferulic Acid vs PDRN: which is better for your skin.
Frequently asked questions
Can I use Ferulic Acid and PDRN together?
Yes, it is safe. There is no known chemical conflict between Ferulic Acid and PDRN, and neither makes the other less effective. They share a goal (aging), so together they reinforce each other.
Which goes first, Ferulic Acid or PDRN?
Apply Ferulic Acid first, then PDRN. 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 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 Ferulic Acid with PDRN safe during pregnancy?
Neither is a known risk in normal cosmetic amounts, but guidance varies for PDRN. Check with your doctor.