Humectant

Polylactic Acid (PLA)

Polylactic Acid — a polymer form of lactic acid that gradually releases active acid in the skin. A gentle exfoliant-moisturizer for sensitive skin that cannot tolerate direct AHA acids.

gentle exfoliationhydrationeven tonesensitive skin

✓ Safe

Comedogenic Rating

0/5

Irritation Potential

0/5

What is it?

Polylactic Acid (PLA) in cosmetics is not the same as industrial plastic PLA. Cosmetic PLA is a low-molecular-weight polymer of lactic acid (MW 500–5000 Da) that is hydrolyzed by skin enzymes with slow release of lactic acid. INCI: Polylactic Acid. Non-toxic, biodegradable. Used in serums, peels, and night creams for even cell renewal.

Products for gentle chemical exfoliation for sensitive and reactive skin. An effective alternative to direct AHA peels for people with low acid tolerance. Even skin tone, reduction of post-acne.

Key Benefits

✦

Gentle prolonged exfoliation

Gradual release of lactic acid from the polymer provides gentle, controlled exfoliation without peak concentrations. Less redness and irritation than from direct lactic acid at the same total dose. Suitable for daily use.

◈

Hydration and even tone

Released lactic acid is both a humectant (part of NMF) and an AHA-exfoliant. It brightens post-acne pigmentation and accelerates cell renewal. The skin looks fresher and more even in color.

✧

Stimulation of collagen synthesis

Like all AHAs, lactic acid stimulates fibroblasts to synthesize new collagen. With regular use, PLA promotes skin thickening and reduces fine wrinkles. The effect is noticeable after 4–6 weeks of regular application.

Suitable for

for sensitive skinfor skin with post-acne marksfor dull skinfor mature skin

Main Actions

✓ gentle exfoliation✓ even tone✓ NMF hydration

PLA vs direct Lactic Acid

Direct lactic acid (AHA) is more effective and faster but can irritate sensitive skin. Polylactic Acid is a prolonged alternative with less risk. If the skin tolerates AHA well — use lactic acid. If it reacts with redness — consider PLA or gradually introduce low concentrations of AHA.

CategoryHumectants

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