COSRX - Retinol Serum

COSRX Retinol Serum

Works for:

based on ingredients and %
  • Moisturizing
  • Anti-aging
  • Evens skin tone

Can it cause trouble?

  • Irritation risk: medium
  • Comedogenic risk ingredients: 1

Key actives

Allantoin0.15% - 0.55%Retinyl palmitate0.5% - 1.2%Panthenol0.35% - 0.85%
USD21.50
Price as of Jan 2, 2026.
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Product Summary

"COSRX - Retinol Serum" is effective for: Anti-aging and Moisturizing

This product could be helpful for: Evens skin tone, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • this product includes a form of Retinoids (vitamin A) - retinyl palmitate 0.50% - 1.20%, but this type of vitamin A is not very effective. It could in theory help with fine lines and wrinkles, but the effect is most likely minimal.
  • Adenosine 0.05% - 0.25%. It is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical Adenosine in low concentrations can somewhat help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).
  • Panthenol (pro-vitamin B5) at about 0.35% - 0.85% concentration. In this concentration, Panthenol works effectively to improve the skin barrier and reduce inflammation.
  • Humectants (panthenol 0.35% - 0.85%, betaine 1.10% - 1.60% and glycerin 3.50% - 5.30%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

About the brand

According to Cruelty-Free Kitty "COSRX" is cruelty free and so is its parent company.

Price

The product retails for 39.00A$ in Australia, for 20.59$ in the United States and for 19.96£ in the United Kingdom.

For a detailed price comparison: click here.

USD21.50
Amazon US Lowest price