How to use them
Use them in the same routine in the morning. Apply Ferulic Acid first, then Polyglutamic Acid, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Ferulic Acid0.5%, wait about 1 minute
- 3Polyglutamic Acid1% – 3%
- 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 Polyglutamic Acid does
A bigger-molecule humectant that forms a moisture-holding film on the skin. It is often paired with hyaluronic acid for plump, long-lasting hydration.
- Typical strength
- 1% – 3%
- When
- AM/PM
- Irritation
- Best for
- Dry, Normal, Combination, Sensitive And Oily skin
Everything that pairs with Polyglutamic Acid →
Frequently asked questions
Can I use Ferulic Acid and Polyglutamic Acid together?
Yes, it is safe. There is no known chemical conflict between Ferulic Acid and Polyglutamic Acid, and neither makes the other less effective.
Which goes first, Ferulic Acid or Polyglutamic Acid?
Apply Ferulic Acid first, then Polyglutamic 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 Polyglutamic Acid in the morning or at night?
Polyglutamic Acid: works morning or night. Apply after toner and before moisturiser, morning or night.