Complete Analysis of Polyglutamic Acid
In multi-step skincare routines, hyaluronic acid (HA) is widely popular for its powerful hydration. However, polyglutamic acid (PGA), derived from fermented soybeans, is emerging as a new favorite. Experts note that it can absorb up to 5,000 times its weight in water, forming a protective film on the skin's surface that effectively seals in moisture and reduces water loss.
| Comparison | Hyaluronic Acid (HA) | Polyglutamic Acid (PGA) |
| Core Mechanism | Hydrophilic polymer, water pump | Large molecule film, moisture lock |
| Main Benefits | Deep hydration, suitable for all layers | Physical smoothing, seals in moisture |
| Usage Tips | Essential skincare base | Perfect complement to HA |
■ Key Skincare Benefits of PGA
- Instant Smoothing: Visually improves fine lines, helps skin look plump and radiant.
- Barrier Support: Maintains moisture balance, reduces the risk of "skin inflammaging."
- High Tolerance: Non-traditional exfoliating acid, suitable for all skin types including sensitive skin.
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■ Recommended Formulations
🔹 Charlotte Tilbury Magic Energy Crystal Serum, price: $85. Contains PGA and multiple botanical extracts, designed to improve skin texture and clarity.
🔹 Biossance Squalane + Copper Peptide Plumping Serum, price: $69. Combines copper peptides and PGA to help skin look more plump.
🔹 Glow Recipe Plum Plump Cream, price: $40. Lightweight texture, long-lasting moisture lock.