On Tretinoin or Retinoids? Why Daily Sunscreen Is Non-Negotiable
Pairing the most popular anti-aging ingredient with the sun-protection step people skip - here's how to avoid the irritation and burns retinoids can set up.
Because retinoids make skin more sensitive to the sun, the AAD advises applying them only at night and always using daytime sun protection - shade, protective clothing, and sunscreen.
The American Academy of Dermatology recommends night-only retinoid use paired with diligent daytime sun protection, since these ingredients increase the skin's sun sensitivity. The Skin Cancer Foundation similarly lists photosensitizing medications and emphasizes consistent sun protection to reduce reactions.
Questions we get a lot
Do retinoids make your skin more sensitive to the sun?
Yes - the AAD notes that retinoids make skin more sensitive to the sun, which is why it advises using them only at night. During the day, sun protection becomes especially important to avoid irritation and burns. This sensitivity is one of the main reasons sunscreen is non-negotiable on retinoids.
When should I apply tretinoin or other retinoids?
Apply them at night, as the AAD recommends, because they increase sun sensitivity and can break down in sunlight. Reserve daytime for sun protection - shade, protective clothing, and sunscreen. This routine reduces irritation and helps you tolerate the retinoid better.
Are retinoids a photosensitizing medication?
Topical retinoids increase the skin's sensitivity to the sun, and the Skin Cancer Foundation lists photosensitizing medications as a reason to be diligent about sun protection. Increased sensitivity can mean faster burning and more irritation with sun exposure. Consistent daily sunscreen helps offset that risk.
r/SkincareAddiction: 'I just started tretinoin - do I really have to wear sunscreen every single day or can I skip it when I'm inside?'