Kulletin

Ingredients

The K-beauty ingredient edit

What each hero ingredient actually does — and the best-reviewed products that use it.

Snail Mucin

A gentle staple for deep hydration and a dewy finish.

15 products

Niacinamide

A versatile multitasker for a balanced and clear-looking complexion.

26 products

Centella (Cica)

The gold standard for soothing sensitive skin.

27 products

PDRN

A marine-derived approach to skin resilience and texture.

12 products

Hyaluronic Acid

A foundational humectant for lasting hydration.

31 products

Propolis

A natural resinous extract that supports a healthy, radiant complexion.

6 products

Ceramide

The essential building blocks for a resilient moisture barrier.

9 products

Vitamin C

The essential antioxidant for a radiant, even-toned complexion.

12 products

Mugwort (Artemisia)

A gentle botanical staple for calming sensitive skin.

8 products

Retinol & Retinal

The gold standard for refined texture and a youthful glow.

12 products

Heartleaf (Houttuynia)

A gentle botanical staple for calm and balanced skin.

10 products

Rice

A gentle staple for a soft, radiant complexion.

13 products

Peptides

The building blocks for a resilient, bouncy complexion.

13 products

Tea Tree

A botanical staple for balancing oily and combination skin types.

10 products

Azelaic Acid

A gentle approach to a clearer, more uniform complexion.

5 products

Panthenol (B5)

The essential moisture barrier supporter for resilient, calm skin.

8 products

Salicylic Acid (BHA)

The essential oil-soluble exfoliant for a clear and refined complexion.

14 products

AHA (Glycolic & Lactic)

Refining texture for a smooth, luminous complexion.

12 products

Collagen

Supporting skin elasticity and a plump, dewy appearance.

12 products

Bakuchiol

A plant-derived alternative for smoother, firmer-looking skin.

6 products

Ginseng

The traditional root for a revitalized, radiant complexion.

5 products

Green Tea

A gentle botanical staple for balanced and refreshed skin.

8 products

Beta-Glucan

The gentle alternative to hyaluronic acid for deep hydration.

3 products