polyglutamic acid
A humectant that draws moisture into the skin and can form a film.
Regulatory Info
Can I mix polyglutamic acid with other ingredients?
General guidance
Hyaluronic acid works best on damp skin. Apply right after cleansing while your face is still moist for maximum hydration.
HA draws water in, ceramides lock it in. Apply HA on damp skin first, then ceramide moisturizer to seal.
Excellent pair! Hyaluronic acid hydrates while niacinamide strengthens the skin barrier. Use together for plump, healthy skin.
Hyaluronic acid before retinoid helps buffer irritation and keeps skin hydrated. A great way to ease into retinoids.
Centella + hyaluronic acid provides deep hydration with calming benefits. Great for sensitive or irritated skin.
Both are hydration powerhouses. Layer hyaluronic acid first (thinner), then snail mucin (thicker) for max hydration.
Growth Factors
Hyaluronic acid on damp skin followed by growth factors ensures hydration and maximizes EGF/PDRN absorption.
Fermented Ingredients
Fermented first essences prep the skin for better hyaluronic acid absorption. Apply fermented product first.
Peptides
Hyaluronic acid + peptides is a hydrating anti-aging duo. Apply HA first (thinner), then peptide serum.
Read all ingredient interaction guides for layering order and science-backed advice.