How to use them
Use them in the same routine at night. Apply Lactic Acid first, then Polyglutamic Acid, moving from thinnest to thickest texture.
- 1CleanseGentle cleanser, pat dry
- 2Lactic Acid5% – 10%, wait about 1 minute
- 3Polyglutamic Acid1% – 3%
- 4Moisturiserseal everything in
What Lactic Acid does
A gentler AHA with a larger molecule. It exfoliates while also acting as a humectant, so it suits dry and sensitive skin that cannot tolerate glycolic acid.
- Typical strength
- 5% – 10%
- When
- PM
- Irritation
- Best for
- Dry, Normal And Sensitive skin
Everything that pairs with Lactic 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 Lactic Acid and Polyglutamic Acid together?
Yes, and they work even better together. Polyglutamic Acid cushions Lactic Acid: it hydrates and supports the barrier while the active does its work. That means less irritation and better results.
Which goes first, Lactic Acid or Polyglutamic Acid?
Apply Lactic Acid first, then Polyglutamic Acid. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Lactic Acid in the morning or at night?
Lactic Acid: best at night. Use 2–3 nights a week. It is good for beginners to exfoliation. Follow with a moisturiser, and wear SPF the next day.
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.