Adapalene and tretinoin are both retinoids, acne drugs that work on clogged pores. The practical difference is access. Adapalene 0.1% is sold over the counter as Differin Gel and a handful of similar gels, after the FDA moved it from prescription to nonprescription in 2016. Tretinoin, the drug in Retin-A, still needs a prescription. Both go on once a day over the whole area where you break out, both can redden and dry skin in the first weeks, and both call for sunscreen. If your acne is mild and you want to start on your own, adapalene is the one you can buy. If it hasn’t improved after a few months, or it’s deep, painful or scarring, that’s the point to see a dermatologist, who may prescribe tretinoin or something else entirely.
Side by side
| Feature | Adapalene | Tretinoin |
| Prescription? | No at 0.1% (gel); yes at 0.3% | Yes, at every strength |
| Strengths | 0.1% over the counter; 0.3% gel by prescription | Cream 0.025%, 0.05%, 0.1%; gel 0.01%, 0.025%; Retin-A Micro gel 0.04% to 0.1% |
| How often | Once a day, thin layer over the whole affected area | Once a day at bedtime, enough to cover the area lightly |
| Common side effects | Redness, dryness, scaling, burning or stinging, mostly early on | Redness, peeling, dryness, burning or stinging, mostly early on |
| Sun | Limit sun and tanning beds; wear sunscreen outdoors | Minimize sun; don’t use on sunburned skin until it heals |
| With benzoyl peroxide | Combined in one gel, OTC and prescription | One prescription cream combines them |
| Pregnancy wording | Ask a doctor before use if pregnant or breastfeeding | Label weighs benefit against risk; talk to the prescriber |
| When to expect results | Up to 3 months of daily use | Some change in 2 to 3 weeks; more than 6 weeks for clear results |
Two retinoids, one big difference
A retinoid you apply to your skin works to clear your pores, and it can treat blackheads, whiteheads and some pimples. The American Academy of Dermatology (AAD) lists four retinoids for acne. Adapalene is the only one you can buy without a prescription; tretinoin, tazarotene and trifarotene all need one. Its 2024 acne guideline gives topical retinoids a strong recommendation.
Tretinoin is all-trans retinoic acid. The Retin-A label says the exact way it works isn’t known, though the evidence points to it loosening the cells that clog a follicle so blackheads and whiteheads get pushed out. Adapalene was first approved by prescription in 1996. On July 8, 2016, the FDA approved Differin Gel 0.1% for over-the-counter use in people 12 and older, calling it the first retinoid made available that way and the first new over-the-counter acne ingredient since the 1980s.
Retinol is a third thing, a cosmetic ingredient rather than a drug. Our tretinoin vs. retinol explainer sorts out that side of the family.
Strength and forms
Over the counter, adapalene comes in one strength, 0.1%. A prescription 0.3% gel exists too. Tretinoin has more options. Retin-A cream comes in 0.025%, 0.05% and 0.1%, the gel in 0.01% and 0.025%, and Retin-A Micro gel in 0.04%, 0.06%, 0.08% and 0.1%. The plain Retin-A gel is about 90% alcohol, and the label warns the gels are flammable.
Don’t line the percentages up against each other. These are different molecules, so 0.1% of one isn’t the same dose as 0.1% of the other.
Irritation: the first month is the hard part
Both labels describe the same pattern. Redness, scaling or peeling, dryness, and burning or stinging show up early and usually ease with continued use. In the Differin clinical trial, these reactions were most likely in the first four weeks and were mostly mild to moderate. The Retin-A label adds that sensitive skin may turn very red, swollen, blistered or crusted, and that tretinoin can severely irritate eczema.
Both labels also say acne can look worse in the early weeks before it improves. To tell a retinoid flare from a new breakout, our post on skin purging vs. a breakout walks through the signs.
Using more won’t speed things up; the adapalene label says it may only worsen irritation. A moisturizer may help with dryness, and the Differin leaflet says to skip products with alpha hydroxy or glycolic acids, which can make irritation worse. The Retin-A label adds sulfur, resorcinol and salicylic acid to its caution list.
Sun sensitivity
The adapalene label says to limit sun exposure, including tanning beds, and to wear sunscreen outdoors; the leaflet says your skin may be more sensitive and, if you apply it during the day, to let it dry before sunscreen goes on. The tretinoin label says to minimize sun and sunlamps, and not to use it on sunburned skin until it has fully healed because tretinoin heightens sensitivity to sunlight. The prescription labels for both drugs also note that wind and cold can irritate treated skin.
Where benzoyl peroxide fits
Benzoyl peroxide works on a different cause of acne, the bacteria, and the AAD says it works best alongside another treatment. Its guideline also recommends combining topical treatments that work in different ways.
Adapalene and benzoyl peroxide already come together in one gel. Differin Epiduo Acne Gel (adapalene 0.1%, benzoyl peroxide 2.5%) is over the counter, and Epiduo Forte (adapalene 0.3%, benzoyl peroxide 2.5%) is prescription. Tretinoin has a prescription pairing too, Twyneo, a cream with tretinoin 0.1% and benzoyl peroxide 3% whose formula wraps each drug in its own silica shell so the two can share one product.
Two separate products are trickier. The adapalene label says irritation is more likely when you use more than one topical acne medication at a time, and the Retin-A Micro label says over-the-counter benzoyl peroxide, sulfur, resorcinol or salicylic acid may increase dryness, redness and peeling. Our benzoyl peroxide vs. salicylic acid guide covers that ingredient on its own.
Pregnancy and breastfeeding
The labels word this differently. The over-the-counter adapalene label says to ask a doctor before use if you’re pregnant or breastfeeding, and to stop and ask a doctor if you become pregnant or plan to. Its leaflet adds that some other retinoid drugs have been shown to cause birth defects, and that there’s no specific evidence adapalene 0.1% does so in humans when used on the skin as directed.
The Retin-A label says tretinoin should be used in pregnancy only if the potential benefit justifies the potential risk to the fetus, and describes birth defects in animal studies at high doses. The Retin-A Micro label adds that decades of observational studies in pregnant women haven’t established a drug-related risk of major birth defects or miscarriage. On the practical side, the AAD says most experts recommend stopping both adapalene and tretinoin during pregnancy. If you’re pregnant, trying or nursing, that’s a conversation for your obstetrician or dermatologist before you start either one.
Who usually starts where
Adapalene is the starting point for anyone 12 or older who wants a retinoid without an appointment. It needs patience: the label says results can take up to three months of once-daily use, and to stop and ask a doctor if there’s no improvement by then. Tretinoin comes through a prescriber, who picks the strength, base and any pairing. Retinoids also lighten dark spots left after acne clears, and dermatologists may keep a retinoid going as a maintenance treatment once acne is under control.
When acne is deep, painful or scarring, a dermatologist is the right call. Our guide to cystic acne covers what an appointment can offer.
Over-the-counter picks
Adapalene gels plus the plain basics that make a retinoid easier to live with. Tretinoin is prescription-only, so it isn’t here.
CeraVe PM Facial Moisturizing Lotion
About $15
Prices move constantly, so we link to live listings instead of printing a number that is wrong by the time you read it. Links go to Amazon, which is where a referral gets credited.
Differin Gel is the product the 2016 switch was about: adapalene 0.1% and nothing else active, about $13, though the price changes often. PanOxyl’s adapalene gel has the same active at the same 0.1% with the same label directions, for a little less. La Roche-Posay Effaclar Adapalene Gel is also 0.1%, with the same label directions; you’re paying for the brand, not a stronger drug.
Differin Epiduo Acne Gel is the one for anyone who already wanted benzoyl peroxide in the routine. Its label says to ask a doctor or pharmacist first if you use any other acne medication, and to skip it if your skin is very sensitive or reacts to benzoyl peroxide. Benzoyl peroxide bleaches hair and dyed fabric, so use white towels and pillowcases.
Vanicream Gentle Facial Cleanser is soap-free, pH balanced, non-comedogenic and sulfate-free. CeraVe PM is oil-free and non-comedogenic with niacinamide, hyaluronic acid and three ceramides, and no added fragrance. Anthelios Clear Skin SPF 60 is broad spectrum and water resistant for 80 minutes. More options are in our moisturizers for acne-prone skin.
If I Were You
If your acne is mostly blackheads, whiteheads and the odd pimple, adapalene 0.1% is the retinoid made for doing it yourself. Used as labeled, with a gentle cleanser, moisturizer and sunscreen, it needs the full three months.
If you already use a benzoyl peroxide wash and want a retinoid too, the one-gel combination keeps things simple. Don’t stack it on top of the wash without asking a pharmacist or doctor first.
If three months of adapalene hasn’t changed much, stop guessing and book a dermatologist. That’s where tretinoin and the other prescription options come in.
If your skin is sensitive or you have eczema, talk to a dermatologist before starting either one, since both labels flag irritation and tretinoin’s specifically warns about eczema.
FAQ
Is adapalene weaker than tretinoin? The labels don’t rank them, and the percentages aren’t comparable. What’s clear is that adapalene 0.1% is the only retinoid available without a prescription.
Can I use adapalene and tretinoin together? They’re the same kind of drug, and stacking topical acne drugs raises the odds of irritation. If you have a tretinoin prescription, ask the prescriber before adding anything.
Can I spot treat with adapalene? No. The leaflet says it isn’t a spot treatment and shouldn’t be used on a single pimple.
Why is my acne worse after starting? Both labels say it can look worse in the early weeks. If irritation becomes severe, stop and ask a doctor.
Bottom line
Adapalene and tretinoin do the same job, and the difference that matters most is the pharmacy counter. Adapalene 0.1% is the retinoid you can start on your own: once a day, the whole area, sunscreen every morning and three months of patience. Tretinoin comes in more strengths and bases, with a prescriber to fit it to your skin. If adapalene stalls, or your acne is deep and painful, the next step is a dermatologist. More on breakout-prone skin is in our skin archive.
