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Polyglutamic Acid (PGA) in spring: how to adjust

⏱ 1 min read
⚡ Quick answer: Using Polyglutamic Acid (PGA) in spring: the season brings rising UV and pollen-season reactivity, so what changes is texture, frequency and what you layer around it — not usually whether you use it at all.

Using Polyglutamic Acid (PGA) in spring: the season brings rising UV and pollen-season reactivity, so what changes is texture, frequency and what you layer around it — not usually whether you use it at all.

A fermentation-derived humectant that originates in natto, the Japanese fermented soybean. It is bigger than hyaluronic acid, so it behaves more like a moisture-holding film than a deep hydrator — which is why the two are often stacked.

What spring does to your skin

Fluctuating temperatures, pollen and sensitivity, and rising UV mean a gentle, barrier-supportive routine with reliable daily SPF.

How that changes Polyglutamic Acid (PGA)

Spring is when UV climbs while skin is still adjusting out of winter — keep the barrier steady and let sunscreen do the heavy lifting. Polyglutamic Acid (PGA) works on dehydration (water-poor skin), dryness & dehydration, rough & uneven texture, and it is normally applied BOTH.

What to layer it with

💧 Hyaluronic Acid💧 Glycerin🌾 Beta-Glucan🧱 Ceramides

🌸 Full spring guide →🫧 Polyglutamic Acid (PGA) guide →

Related K-beauty guides

🫧 Polyglutamic Acid (PGA)

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.