The TIRTIR SOS Serum 50ml is a hydration-boost Korean serum enriched with polyglutamic acid (PGA) that delivers deep, enduring hydration for a glowing, plump look.

Why choose this Korean PGA serum

• Polyglutamic acid (PGA): The brand states PGA has a 10 times greater water-holding capacity than hyaluronic acid and binds and retains moisture effectively.
• Deep, enduring hydration: Leaves the skin looking glowing, rejuvenated, and plump.

Product details

• Brand: TIRTIR
• Product: SOS Serum
• Size: 50ml
• Key ingredient: Polyglutamic acid (PGA)

Frequently asked questions

What is PGA?
Polyglutamic acid, a moisture-binding ingredient that the brand states holds 10 times more water than hyaluronic acid.

Does shipping cost extra?
No. Shipping is free.