Best Sunscreens to Wear With Tretinoin, and Which One Fits You

Why does sunscreen matter more once you start tretinoin?

Tretinoin's patient instructions include a section on the sun. They warn that too much sunlight, or a sunlamp, can cause sunburn, and that years of overexposure can age skin early and lead to skin cancer (tretinoin patient instructions).

Tretinoin can also irritate skin by itself. Dermatologists call this retinoid dermatitis, meaning redness, dryness and peeling caused by the retinoid. The authors of a Thai melasma trial note that earlier research using tretinoin for melasma produced moderate cases of it in a number of patients (melasma trial background). Their own 40-week trial tested a different, related retinoid, topical isotretinoin gel, and patients applied a broad-spectrum SPF 28 sunscreen to the whole face every day (Thai melasma trial).

Which sunscreen suits skin that is dry, peeling or stinging?

Sunscreens use two kinds of filters. Chemical filters, which dermatologists call organic filters, spread on more easily. A general dermatology review, not one focused on tretinoin users, describes chemical filters as a group as breaking down faster and being less well tolerated, and mineral filters (zinc oxide and titanium dioxide) as lasting longer and being better tolerated (Practical Dermatology review). That is a broad comparison, and individual formulas within each group vary. If tretinoin already has your face irritated, mineral is a sensible place to start. Chemical sunscreen is still an option if your skin feels fine on it.

To identify a mineral formula, check the Drug Facts box on the package. Curology's Everyday Sunscreen SPF 30, for example, lists zinc oxide 9.4% as its only active ingredient. Its label says not to use that sunscreen on damaged or broken skin, and to stop and ask a doctor if a rash appears (Curology label on DailyMed). If tretinoin has left any patches cracked or raw, do not assume a mineral or tinted sunscreen is fine to put on them. Follow the Drug Facts directions on the product you have, and ask your prescriber or clinician what to do if your skin is raw or stays irritated.

Should you use a tinted sunscreen if you have melasma?

Visible light is the part of sunlight you can see, and it makes up 45% of sunlight. Dermatologist Pearl Grimes and L'Oréal researchers report that it can darken skin right away and in ways that last, especially in deeper skin tones (Grimes, JDD 2025). In their earlier study of people with Fitzpatrick type IV skin (moderate brown skin that tans easily and rarely burns), the iron oxide formulas they tested protected against that darkening, while the SPF 50+ sunscreen they tested, which blocked only UV, did not. That SPF 50+ was a mineral sunscreen, so in that study, mineral UV protection alone did not prevent this darkening either (earlier Grimes study).

Melasma researchers Polena, Passeron and colleagues make a similar point for melasma patients. They write that broad-spectrum sunscreens protect against UV but offer limited protection from visible light, and that tints made with iron oxides and pigmentary titanium dioxide reduce how much visible light reaches the skin (Polena and Passeron, 2025). These studies looked at melasma and visible-light darkening, with the clearest results in medium to deep skin, and none of the cited studies involved people using tretinoin. They tested specific formulas, so they do not show that every tinted sunscreen performs the same way, or that tinted sunscreen works better for every kind of dark spot. Iron oxides are the pigments that give a tinted sunscreen its color, so look for them on the ingredient list.

To pick yours:

• Dry, peeling or stinging skin: start with a mineral sunscreen with zinc oxide or titanium dioxide as the active ingredients.
• Melasma, or darkening from visible light on medium to deep skin: choose a tinted sunscreen with iron oxides.
• Irritated skin plus melasma: a tinted mineral formula combines the two suggestions above. No cited study tested that combination in tretinoin users, and individual formulas vary in how they feel on irritated skin.
• Neither: choose any broad-spectrum sunscreen with a texture you like enough to wear daily and reapply.