Ingredients and actives
Polyglutamic acid
Also written as PGA serum, hydration serum.
A humectant that holds more water than hyaluronic acid and leaves a noticeably tacky film.
What it needs from a bottle
Tackiness gums pipettes. A pump is kinder to the customer and to the closure, and it stops the bulb sticking to the neck after a fortnight.
Formats that suit it
- Treatment pumps
- Airless pumps
Order from a single bottle, so a first run can be a test rather than a bet on a guess.
See the bottles →