

TIRTIR SOS Serum – 50ml
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✓ 100% Authentic · sourced from authorised suppliers
✓ Free UK delivery on orders over £50
✓ 30-day returns on unopened items · 24,000+ customers since 2021
TIRTIR SOS Serum is a 50ml soothing, hydrating serum built around polyglutamic acid (PGA), a moisture-binding ingredient the brand compares to hyaluronic acid, suited to dehydrated or stressed-feeling skin that needs calming.
What it does
The SOS Serum is TIRTIR's rescue step for skin that feels dry, tight or reactive. Its key ingredient is polyglutamic acid, which the brand states holds more water than hyaluronic acid, helping skin hold onto moisture through the day. The texture is a light, slightly viscous gel that spreads easily and absorbs without tackiness. Skin feels soothed and comfortable, and looks plumper, dewier and more rested. It layers well under moisturiser or SPF and can be used as a quick hydration boost whenever skin feels out of sorts.
How to use
Morning and evening after toner, press two to three drops over the face and neck and pat until absorbed. Follow with moisturiser. Can be applied more generously at night as a hydrating layer. Patch-test first.
Who it's for
Dehydrated, sensitive or easily stressed skin, and anyone who wants a gentle, non-sticky hydrating serum with a calming feel for daily use.
Why buy from GlamGlobal
GlamGlobal stocks TIRTIR in the UK with tracked UK delivery – alongside our wider Korean skincare range – so the SOS Serum reaches you quickly when skin needs it.
Free UK delivery on orders over £50; £4.95 under £50. Orders are dispatched within 1–3 working days, then take 5–10 working days to arrive in the UK. USA from £6.95; Europe from £9.95; rest of world from £14.95.
30-day returns on unused, unopened products in original packaging. For hygiene reasons, opened beauty products can only be returned if faulty. Email support@glamglobal.com to start a return.
100% Genuine — Guaranteed.
Every product we sell is 100% genuine, sourced from authorised suppliers and brand distributors in South Korea, Japan and the United States. Since 2021, more than 24,000 customers have shopped with GlamGlobal. If anything arrives damaged or faulty, email support@glamglobal.com and we will refund or replace it.
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