Tretinoin vs Retinol: What's the Difference?

In short: both are vitamin A retinoids. Retinol is a cosmetic ingredient that the skin converts, in two steps, into retinoic acid. Tretinoin is retinoic acid, so it works directly, is more potent and more irritating, and is prescription-only in the UK. Retinol is gentler and slower.

Want the detail? How tretinoin works →

Side-by-side

Is tretinoin better than retinol?

Not automatically. Tretinoin has stronger clinical evidence for acne and photoageing, but the "best" retinoid is one your skin tolerates consistently. Many people do very well on retinol or retinal.

Can you use retinol and tretinoin together?

Using both at once generally adds irritation without extra benefit. If you are prescribed tretinoin, it typically replaces retinol in your routine.

What about retinal?

Retinal (retinaldehyde) is one conversion step from retinoic acid, so it sits between retinol and tretinoin in strength while remaining cosmetic.

Is there a prescription alternative to retinol?

Yes: tretinoin, which needs a medical assessment. If you're wondering whether it suits your skin, complete our free prescription skincare consultation →. UK registered doctors review your form and advise; a prescription is not guaranteed.

FAQ

Is tretinoin stronger than retinol?

Yes. Tretinoin is the active form, so it does not need converting in the skin.

Should I switch from retinol to tretinoin?

Only after a medical assessment; many people stay on retinol happily.

Is "prescription retinol" the same as tretinoin?

People often use "prescription retinol" to mean tretinoin, which is a different, prescription-only retinoid.

Sources: NHS; BNF; published dermatology reviews on topical retinoids.