Tretinoin
The gold-standard retinoid
Adapalene
The gentle retinoid you can buy without a prescription
Both are retinoids that clear acne. Adapalene is gentler and sold over the counter, so it’s the easier place to start. Tretinoin is stronger, prescription-only and has far more evidence for sun damage and fine lines. Don’t use both at once.
Medical review pending
Review date to come
At a Glance
| Tretinoin | Adapalene | |
|---|---|---|
| Prescription | Yes | No (0.1%) |
| Strength | Stronger | Gentler |
| Best for | Acne and aging | Acne |
| Irritation | More | Less |
| Stable in sunlight | No | Yes |
| With benzoyl peroxide | Microsphere forms only | Yes |
| Pregnancy Same | Avoid | Avoid |
| Time to results Same | About 12 weeks | About 12 weeks |
What They Treat
| Tretinoin | Adapalene | |
|---|---|---|
| Acne | StrongFirst-line for clogged pores and pimples. | StrongFirst-line for clogged pores and pimples. |
| Sun damage & fine lines | StrongBuilds collagen. | LimitedLess studied than tretinoin. |
| Dark spots & melasma | ModerateBest in a triple cream. | Not a main use |
| Rough texture | ModerateSmoother surface over months. | LimitedSome smoothing. |
| Keratosis pilaris | LimitedOff-label. | LimitedOff-label. |
| New stretch marks | LimitedEarly red marks only. | Not a main use |
| Clogged pores | Not a main use | StrongBlackheads and whiteheads. |
| Acne marks | Not a main use | ModerateFaster turnover fades marks. |
Shaded cells have the stronger evidence for that use.
How They Work · Interactive
A little covers the whole face.
Oil-loving and mid-sized, it moves in slowly.
It binds retinoic acid receptors in the nucleus.
Retinoid receptors
Faster turnover loosens plugs.
Acne
Over months, fine lines soften.
Photoaging
Enough for the whole face.
It concentrates in pores, where acne starts.
Only the receptors that control pore lining.
Retinoid receptors
Pore cells shed normally again.
Acne
Fewer red, angry spots.
Strengths & Forms
Highlighted: the strength most people start with.
Slow-release; stable with benzoyl peroxide.
With clindamycin or benzoyl peroxide.
With hydroquinone and a steroid, for melasma.
Highlighted: the strength most people start with.
Light; good for oily skin.
For dry or sensitive skin.
Easy on the chest and back.
Side Effects & Risks
| Tretinoin | Adapalene | |
|---|---|---|
| Dryness, peeling, redness | CommonUse less often; moisturize. | CommonUsually mild; moisturize. |
| Stinging or burning | CommonApply to completely dry skin. | UncommonApply to dry skin. |
| Sun sensitivity | CommonDaily SPF 30+. | UncommonDaily SPF 30+. |
| Early acne flare | CommonUsually settles by week 6–8. | UncommonUsually settles by week 4–6. |
| Darker or lighter patches | UncommonMore likely on deeper skin tones. | Not listed |
| Allergic reaction | Not listed | RareStop and see a doctor. |
Results Timeline
Tretinoin
Peeling, dryness, possible purge.
Fewer breakouts; skin adapts.
Clearer, more even tone.
Softer fine lines.
Adapalene
Mild dryness; possible purge.
Fewer new breakouts.
Clearer skin.
Keep using to stay clear.
Using Them Together
Using two at once adds irritation, not results.
Stop adapalene the night you start tretinoin.
Fine to swap any time if tretinoin is too harsh.
Which One Is Right for You
Common Questions
For most mild to moderate acne, results are similar with less irritation.
Tretinoin.
Yes — just don’t layer them.
Dermapedia is for education only and is not medical advice. It does not create a doctor–patient relationship. Always consult a qualified clinician about your own skin.