Can you use retinol with tretinoin?
No. Tretinoin is a prescription retinoid and an over-the-counter retinol is doing the same job, less strongly.
What Vessa does with both on your shelf
When a prescription retinoid is on your profile, Vessa removes over-the-counter retinoids from the pool entirely rather than scheduling both.
Why
Adding a second retinoid raises irritation without adding benefit — the prescription one is already the stronger of the two.
When this is a question for a clinician
Your prescriber decides your retinoid. Nothing here replaces that.
Questions people ask next
How this answer is decided
These verdicts are the rules Vessa applies when it builds a routine, not an editorial opinion. The app schedules retinoids in the evening only, keeps exfoliants on different nights from them, puts vitamin C in the morning and sunscreen last every morning, and removes retinoids, salicylic acid and hydroquinone from consideration entirely when someone tells it they are pregnant or breastfeeding. Where the evidence is genuinely mixed, the app takes the cautious side and this page says so rather than picking one for you.
Vessa sells a subscription, not the products it recommends, and it suggests buying something only where a step is missing from what you already own. This is skincare guidance, not medical advice: anything painful, spreading or changing quickly belongs with a dermatologist.
Checked against your actual shelf
Scan the products you own and Vessa schedules them around each other, including this pair.