About this product
COSRX The Retinol 0.5 Oil 20ml is an anhydrous retinol serum oil at 0.5% concentration for experienced retinoid users seeking maximum anti-ageing potency in a skin-nourishing oil format. The waterless formula preserves retinol stability and provides simultaneous nourishment for dry, mature skin.
Best for dry, normal skin looking to address deep wrinkles, fine lines, elasticity — with a focus on intensive retinol treatment.
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Quick Stats
Key Ingredients
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Product Claims
Common Allergens
Based on confirmed product attributes. Always check the full ingredient list for personal allergens.
Always check the full ingredient list if you have known allergies or sensitivities.
How to Use
- 1Use 1-2 times per week
- 2Mix with moisturizer or use alone
- 3Always use SPF next day
Patch Test Recommended
This product contains high-strength actives. Before full application, apply a small amount to your inner arm or jaw and wait 24 hours to check for irritation.
If you experience redness, burning, or itching — discontinue use and consult a dermatologist.
Dermatologist Note
0.5% pure retinol in nourishing oil base with squalane and vitamin E.
Based on published clinical literature and dermatological research.
Ingredient Analysis
Full Ingredient List (INCI)
4 ingredientsListed in order of concentration (highest first)
Retinol, Squalane, Vitamin E, Tocotrienols
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Disclaimer: The information on this page is for informational purposes only and does not constitute medical or dermatological advice. Always do your own research, consult a qualified professional if you have concerns, and patch test new products before full application — especially if you have sensitive or reactive skin.