Brand Comparison

TIAM vs beplain

A head-to-head comparison of two popular K-beauty brands. Which one is right for your skin?

Our Pick

beplain

Higher editor rating (8.5 vs 7.5)

TIAM beplain

Rating7.5/108.5/10

Price RangeBudget ($)Budget ($)

Founded20152017

OriginSeoul, South KoreaSeoul, South Korea

Products55

Best Forall skin types, beginner, dullSensitive, dehydrated, all skin types

PhilosophyGentle, dermatologist-developed skincare with a focus on potent vitamin C formulations and barrier-friendly formulations.Minimalist, plant-based skincare built around single-ingredient heroes with EWG-green certification and fragrance-free formulations.

TIAM

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.

Pros

✓ Gentle L-ascorbic acid formulations
✓ Dermatologist-developed
✓ Affordable and widely available
✓ Good starter vitamin C

Cons

✗ Not as potent as specialist vitamin C brands
✗ Packaging is functional, not premium
✗ Smaller catalog

beplain

beplain is the minimalist clean K-beauty brand that lets each hero ingredient do the work. Their Mung Bean Cleansing Foam became the #3 product on Hwahae Global 2026, and the Greenful Toner is the default recommendation for reactive, dehydrated skin. Low-hype, high-efficacy.

Pros