One ingredient per bottle. K-beauty’s answer to The Ordinary.
4
Products
$12–$18
Price range
$15
Avg price
Known for
One Thing strips skincare to its absolute minimum: single-ingredient serums and essences in large, affordable bottles. Centella extract, artemisia, tea tree — each product is just one thing. It’s the Korean version of The Ordinary’s philosophy, letting you build a completely customized routine. Their 300ml bottles offer exceptional value for layering enthusiasts.
Best of One Thing

Essence
Artemisia Capillaris Extract
$16
vs $45
Calming irritation and providing lightweight hydration without heaviness. Perfect for sensitive or reactive skin needing gentle care.

Hydrating Toner
Centella Asiatica Extract Toner
$12
vs $35
Redness, irritation, dehydration, compromised skin barrier

Soothe
Centella Asiatica Extract
$18
vs $45
Reactive, post-acne. 100% centella extract. Nothing else. Pure healing power.
All products (4)

Calming irritation and providing lightweight hydration without heaviness.

Redness, irritation, dehydration, compromised skin barrier.

Reactive, post-acne.

Plumping fine lines, boosting hydration, prepping skin for serums.