Adapalene vs tretinoin: how they differ for acne

Quick answer: Adapalene and tretinoin are both topical retinoids used for acne, and both are used at bedtime. Adapalene is sold without a prescription as a gel, while tretinoin is a prescription medicine. In older head-to-head trials, adapalene 0.1% gel was better tolerated than tretinoin 0.025% gel and reduced lesions as well or slightly better. The choice for your skin belongs to a dermatologist, and a prescription is never guaranteed.

People search for this comparison because the two names sound alike and the shelves look alike. They aren’t the same drug, though, and the differences show up in irritation, access, and how your dermatologist sequences your plan. This article lays out what the published sources say, where they stop, and what to bring to a review.

The Goal Is Clear is a telehealth service, so we’ll say where we fit. A board-certified dermatologist reviews your case within 24 hours, and plans can include prescription topicals. We don’t promise any specific topical, and nothing below is personal dosing advice.

What are adapalene and tretinoin, and how do they differ?

Both belong to the retinoid family of acne medicines. The American Academy of Dermatology describes a retinoid you apply to your skin as a medicine that works to clear your pores and can treat blackheads, whiteheads, and some pimples. It lists adapalene as the non-prescription retinoid for acne. It lists tazarotene, tretinoin, and trifarotene as prescription retinoids.

MedlinePlus calls adapalene a “retinoid-like compound” and says it is used to treat acne in adults and children 12 years of age and older. Prescription adapalene comes as a gel, a solution, a lotion, a cream, and a pledget. The over-the-counter version comes as a gel.

MedlinePlus places tretinoin in the retinoid class. It comes as a lotion, a cream, and a gel. The page says tretinoin works by increasing production of new skin cells and unclogging pores. Tretinoin is also used to reduce fine wrinkles, so the name turns up in skincare talk well beyond acne.

How do adapalene and tretinoin compare side by side?

The list below keeps to what the AAD and MedlinePlus pages state. Where a source is silent, the list says nothing.

• Access: the AAD lists adapalene as the non-prescription retinoid and tretinoin as a prescription retinoid.
• Application: MedlinePlus says adapalene is usually applied once a day at bedtime and that tretinoin is used daily at bedtime.
• Early flare: MedlinePlus says acne probably gets worse during the first 7 to 10 days of tretinoin. For adapalene, it says previously unseen pimples can surface during the first weeks.
• Time to benefit: MedlinePlus says adapalene can take 8 to 12 weeks or longer for full benefit. For tretinoin, it says acne sores should improve in 2 to 3 weeks, and sometimes more than 6 weeks. These are different endpoints, so they don’t rank the two.
• Irritation: the adapalene page lists redness, scaling, dryness, burning, and stinging, plus pain at the application site. The tretinoin page lists dryness, itching, burning, stinging, peeling, swelling, redness, blistering, and flaky skin.

Notice what isn’t in that list. Neither page ranks one drug above the other, and neither names a winning strength. Any ranking comes from trials, which the next sections cover.

Which one is less irritating on the skin?

Three published studies lean toward adapalene on tolerability, with a caveat about their age. A split-face study had 15 volunteers apply adapalene 0.1% gel to one half of the face and tretinoin 0.025% gel to the other half for 14 days. It concluded that adapalene was “significantly less irritating.”

A meta-analysis of five comparative studies pooled 900 patients with mild-to-moderate acne, 450 on each gel. It reported that adapalene “demonstrated considerably greater local tolerability at all evaluation periods.” Another 323-patient trial reported that patients tolerated adapalene significantly better.

These studies date from the 1990s, and each compared one strength of each drug. Products today come in other forms, so the results don’t settle every product on a shelf.

The AAD adds a reassurance for anyone whose skin has reacted to a retinoid in the past. It says developing irritated skin “doesn’t typically mean that you have an allergy to this medication.” It also says newer retinoids tend to be less irritating than the original ones.

What do dermatologists suggest when a retinoid irritates?

The AAD says your dermatologist may recommend applying a smaller amount, using the retinoid less often, or applying moisturizer first. It adds that you should make these changes only with your dermatologist’s help. MedlinePlus also says your doctor may tell you to use a moisturizer for dryness or to apply adapalene less often.

The AAD says to make changes to how you use a retinoid only with your dermatologist’s help. For more on pairing a retinoid with other products, read our guide to a skincare routine on acne medication.

Which one works faster or better?

In the 323-patient trial, the groups used each gel daily on the full face for 12 weeks. At week 12, total lesions fell by 49% with adapalene and 37% with tretinoin (p<0.01). Noninflammatory lesions fell by 46% with adapalene versus 33% with tretinoin. For inflammatory lesions, the difference was 48% versus 38%, and the study reported p=0.06 for that comparison.

The five-trial meta-analysis found a more even picture. It says adapalene showed equivalent efficacy to tretinoin in reducing total lesion count. It also found a faster start, with a significant difference in inflammatory and total lesions at week 1.

In these studies, adapalene matched tretinoin on total lesion counts in the meta-analysis and came out ahead at week 12 in the 323-patient trial. That isn’t a promise about your skin. The AAD notes that it takes at least 6 to 8 weeks before you start to see fewer breakouts, so judging either gel in the first two weeks tells you little.

Why might acne look worse at first?

MedlinePlus warns that acne probably gets worse during the first 7 to 10 days of tretinoin and says to continue using it. For adapalene, it says previously unseen pimples can come to the surface during the first weeks, and to keep going even if acne worsens at first. If the flare worries you, tell your dermatologist. For more on tretinoin timelines, see what to expect on tretinoin.

Which acne types does each one treat?

The sources we reviewed don’t assign one retinoid to blackheads and the other to inflamed pimples. The AAD groups topical retinoids together and says they can treat blackheads, whiteheads, and some pimples. It also says a retinoid can help lighten dark spots left after acne clears, and that dermatologists may recommend a topical retinoid as maintenance once acne is under control.

The 2024 acne guideline, published in JAAD, makes “strong recommendations” for benzoyl peroxide, topical retinoids, topical antibiotics, and oral doxycycline. It treats topical retinoids as a class and doesn’t rank adapalene against tretinoin in that summary.

Maintenance has its own evidence for adapalene. In a 253-patient study of people with severe acne who had improved on doxycycline with or without adapalene, the maintenance rate was 75% with adapalene gel and 54% with vehicle after 16 weeks. That study tested adapalene as a follow-up step, not as a rival to tretinoin.

What does a dermatologist weigh when choosing between them?

A dermatologist looks at your skin and history, not at a brand name. Several points from the AAD and MedlinePlus pages bear on that review.

How sensitive is your skin to retinoids?

Tell your dermatologist about any past irritation. If a retinoid stung or peeled in the past, say so, because the AAD asks patients to tell their dermatologist. The tolerability trials above are one input among many, and only your dermatologist can say which retinoid fits your skin.

What else is on your skin?

MedlinePlus tells tretinoin users not to use other topical medications, especially benzoyl peroxide, hair removers, and salicylic acid, unless their doctor directs it. It also says shaving lotions, astringents, and perfumes with a lot of alcohol, menthol, spices, or lime can sting, especially early. For men who shave daily, that is worth raising in the dashboard message. Our page on tretinoin for men covers shaving in detail.

What about pregnancy, eczema, and sun exposure?

For both medicines, MedlinePlus says to tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It also says to call your doctor if you become pregnant while using either one. Both pages say not to apply the medicine to sunburned skin or skin affected by eczema. Both also say to avoid unnecessary or prolonged sun exposure. The AAD’s sun-protection advice for retinoid users includes a non-comedogenic sunscreen with SPF 30 or higher.

Can you use adapalene and tretinoin together?

We found no source that recommends stacking the two, and MedlinePlus tells tretinoin users not to add other topical medicines unless their doctor directs it. Treat this as a question for your prescriber instead of a routine to design yourself. If you’re already using drugstore adapalene when you book a review, list it by name so your dermatologist doesn’t prescribe a duplicate.

A complete list also gives your dermatologist the full picture. Your dermatologist reads the intake and either writes the prescription, asks a follow-up in the dashboard, or routes you to in-person care.

What if neither one clears your acne?

The AAD notes that benzoyl peroxide is most effective when used along with another acne treatment. It also says some acne treatments combine a topical antibiotic with another medicine, such as benzoyl peroxide or a retinoid. The aim is to reduce antibiotic resistance. Our guide to doxycycline for acne covers the oral side of that conversation.

The AAD says dermatologists prescribe isotretinoin for nodular acne that hasn’t responded to other acne treatments. TGIC’s own Accutane® FAQ explains how that path works when a board-certified dermatologist agrees it fits. A topical is not a required step before isotretinoin for every patient, and the decision stays with your dermatologist.

Isotretinoin comes with its own operating details. Once you’re prescribed it, iPledge doesn’t send a warning email when a window is missed, so someone has to know the dates. That is why every Accutane® patient at TGIC gets an iPledge Concierge who tracks monthly windows, pregnancy tests, and refills.

Common questions about adapalene vs tretinoin

Is adapalene stronger than tretinoin? The sources we reviewed don’t say that. In trials, adapalene 0.1% gel matched or modestly beat tretinoin 0.025% gel on lesion counts, and it was better tolerated. Those are particular strengths from older studies, so ask your dermatologist about the product in front of you.

Can I buy tretinoin without a prescription? The AAD lists tretinoin among the prescription retinoids and adapalene as the non-prescription one. A board-certified dermatologist can review whether a prescription topical fits your case, and a prescription is never guaranteed.

How long does adapalene take to work? MedlinePlus says it may take 8 to 12 weeks or longer to feel the full benefit, and acne may get worse in the first few weeks. The AAD says to expect at least 6 to 8 weeks before you see fewer breakouts.

Does either one cause dryness and peeling? Yes, MedlinePlus lists dryness, redness, burning, and scaling or peeling among the skin effects of these medicines. Ask your dermatologist before changing how often you apply the medicine.

What should I tell my dermatologist before starting either one? List every product on your face, including cleansers, shaving products, and any benzoyl peroxide. Mention eczema, past retinoid irritation, and whether you are pregnant, planning pregnancy, or breastfeeding. Pregnancy and breastfeeding are points MedlinePlus asks patients to share, and the AAD asks about past retinoid irritation.

Which retinoid fits your acne and your skin?

The AAD says adapalene is the retinoid sold without a prescription, online and in stores. If acne hasn’t improved after a fair trial, a dermatologist can reassess the plan. Our guides on retinol versus tretinoin, Retin-A versus retinol, and Accutane® versus tretinoin cover the neighboring comparisons.

When you’re ready, the TGIC FAQ explains how a review works. A board-certified dermatologist reviews your case within 24 hours. Medication is billed separately by the pharmacy, and our pricing page has the details.

This article is general information, not medical advice. A prescription is never guaranteed, and treatment decisions stay with the board-certified dermatologist who reviews your case. Accutane® is a registered trademark of its respective owner, and isotretinoin is the generic name. The Goal Is Clear is operated by BNG Health Services, LLC, which is not the prescribing physician; independent board-certified dermatologists prescribe.

Sources

• American Academy of Dermatology, Acne: Diagnosis and treatment
• MedlinePlus, Adapalene
• MedlinePlus, Tretinoin topical
• Shalita et al., adapalene gel 0.1% and tretinoin gel 0.025%, J Am Acad Dermatol 1996
• Cunliffe et al., adapalene 0.1% gel versus tretinoin 0.025% gel, meta-analysis, Br J Dermatol 1998
• Caron et al., split-face comparison, J Am Acad Dermatol 1997
• Thiboutot et al., adapalene gel 0.1% as maintenance therapy, Arch Dermatol 2006
• Reynolds et al., Guidelines of care for the management of acne vulgaris, J Am Acad Dermatol 2024