TIAM
Gentle, dermatologist-developed skincare with a focus on potent vitamin C formulations and barrier-friendly formulations.
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TIAM is the approachable alternative to more aggressive vitamin C brands. The My Signature C Source is one of the best entry-level L-ascorbic acid serums you can buy — effective without being irritating. A solid pick for anyone new to actives.
Strengths
- + Gentle L-ascorbic acid formulations
- + Dermatologist-developed
- + Affordable and widely available
- + Good starter vitamin C
Weaknesses
- − Not as potent as specialist vitamin C brands
- − Packaging is functional, not premium
- − Smaller catalog
The TIAM Story
The Gentle Vitamin C Brand
TIAM launched in 2015 with the goal of making potent actives accessible to K-beauty beginners. The My Signature C Source Vitamin C Serum combines 10% L-ascorbic acid with a stable, low-irritation delivery system — strong enough to work, gentle enough for daily use.
Today
TIAM has become a go-to recommendation for people who want to start using vitamin C without risking irritation.
Shop TIAM by skin type
Curated picks from TIAM's lineup, ranked for each skin type.
All TIAM Products
6 products reviewed and rated.
Vita B3 Source
TIAM's brightening hero and the K-beauty answer to The Ordinary Niacinamide 10% + Zinc 1% — but with alpha-arbutin instead of zinc for a more targeted melanin-inhibiting angle. At 10% niacinamide + 2% alpha-arbutin, this is a serious clinical-concentration dark spot serum at a budget Korean price. The My Signature C Source's quieter, more niacinamide-forward sibling.
Snail & Azulene Low pH Cleanser
The pale blue comes from azulene — a chamomile-derived anti-inflammatory compound that's been used in sensitive-skin pharma for decades. Add snail mucin, panthenol, allantoin, and a pH 5.5 amino-acid surfactant base, and you have one of the gentlest second-cleansers in K-beauty. For barrier-compromised skin that still wants a proper foam cleanse.
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