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Why it's flagged
Retinol makes skin more sensitive to UV. Since it's an evening product, the real thing to manage is your SPF the next morning.
What Haru suggests
No same-evening application to manage — just make sure to apply SPF the morning after a retinol night.
How settled this is
Commonly advisedA common recommendation rather than a strict rule — adjust it to how your skin actually responds.
Based on general cosmetic consensus — not on your products' specific concentrations, which aren't disclosed and are never inferred from the ingredient list order.
These recommendations are general and don't replace advice from a dermatologist, especially for sensitive skin or a prescribed treatment.