COSRX
Retinol 0.5 Oil
A medium holy trinity active for aging and texture, built around Retinol and Retinoid, with reviewed formula data, and low obvious irritation flags.
Routine step
Serums & Treatments
Category
Holy Trinity Active
When to use
Night
Skin fit
Aging
10/10
Texture
10/10
Dullness
9/10
Pores
9/10
Best for
Key ingredients
Retinol 0.5%
Increases firmer-looking skin support and cell turnover
Squalane
Enhances delivery and reduces irritation potential
Cautions
Best kept for night. Some actives do not play nicely with daytime sun.
Avoid during pregnancy or nursing unless your clinician says it is okay.
Formula checked
Koracle has a reviewed ingredient source for this product.
Checked 2026-04-30
Available
Check current price before you buy.
Koracle is skincare education, not medical or dermatology advice. Patch-test new products. Ask a licensed dermatologist about acne, rosacea, eczema, allergic reactions, pregnancy concerns, or symptoms that persist.