Ingredient guide · free · every answer cites its source
How to start retinol
- 1What it is
- 2Start route
- 3Pairing
A guide to the general plan, not a diagnosis · AAD · Cleveland Clinic · FDA
The schedule comes from the sources.
Your face decides the pace.
This is the general plan for the ingredient, not for your skin. MySkincare scans your face in 3 photos, then builds a routine from that, the products you already use and their ingredients — checked to work together.
Scan my skin in MySkincareFree scan: your skin score. Zone by zone: with a plan.
A guide to what the sources report, not a prediction for your skin.
Everything in this tool, in full
Retinol is the vitamin A you can buy without a prescription, and most of the irritation comes from starting too fast. Pick your skin and strength: the plan fills in, night by night.
- Sold
- As a cosmetic, no prescription
- Use
- At night only
- Start
- Every other night
- Pregnancy
- Avoid
Retinol, explained
What retinol does
Retinol is a form of vitamin A, one of the retinoids. The AAD says it’s used to improve uneven tone, pigmentation and texture; Cleveland Clinic adds fine lines over time. Skin converts it to retinoic acid (tretinoin) by way of retinaldehyde, which is why a 2022 review calls it about ten times less potent than tretinoin.
Patient skin, mostly not reactive
Adults after smoother texture, more even tone or softer fine lines who can wait months. The AAD’s dermatologists say people with skin allergies or dryness are probably not good candidates, and Cleveland Clinic points sensitive skin to other ingredients. Skip it on sunburned, broken or irritated skin.
Rough at first, then it settles
Dryness, redness, peeling and stinging are the usual ones. Cleveland Clinic says they’re usually temporary and fade as your skin adjusts, and that pimples can continue for the first couple of months. No source we read puts a number of weeks on it. On darker skin, the AAD warns irritation can leave dark marks, one more reason to go slow.
Nights only, and not while pregnant
Retinol makes skin more sensitive to sunlight: use it at night and wear SPF 30 by day. The AAD says retinoids should not be used during pregnancy and lists over-the-counter retinol among ingredients to avoid. Cleveland Clinic says the risk to breastfed babies is believed to be low.
Check your products for pregnancy →
Cleveland Clinic: retinolAAD: retinoidsAAD: pregnancy skin care
Strengths, OTC or prescription
Retinol has no drug label, and the AAD notes brands don’t have to print the percentage. These are the figures the sources give, next to its prescription and over-the-counter cousins.
| Strength | Sold as | What the source says |
|---|---|---|
| 0.075% to 0.5%Creams, serums | Cosmetic | The range most anti-aging studies in a 2022 review tested; two comparisons with tretinoin went up to 1%.2022 review |
| 0.3%Face creams | Cosmetic | The maximum that review gives as recommended for face and hand creams.2022 review |
| Lowest you can findTo start | Cosmetic | The AAD’s advice for a first retinoid: the least-intense formula, every other night.AAD: retinoids |
| Adapalene 0.1%Gel | OTC drug | The one retinoid sold for acne without a prescription. Adapalene guideAdapalene 0.1% label |
| Tretinoin 0.01% to 0.1%Cream, gel | Prescription | Retinoic acid itself, the stronger form retinol turns into. Tretinoin guideTretinoin label2022 review |
Pairing retinol: what to check
Starting retinol is the time to keep everything else the same: the AAD advises adding one product at a time, because several new ones at once can irritate. AAD: anti-aging products
RtWhat not to mix with retinolAll 8 actives checked, with morning and night plansMyths, checked
“A stronger percentage works faster”
The AAD’s dermatologists advise the least-intense formula first, and a 2022 review says retinoid side effects rise with the dose, so raise the concentration gradually. Patients who skip that step “end up irritating their skin,” one says.
“Retinol and tretinoin are the same”
Retinol has to be converted into retinoic acid in your skin, and a 2022 review puts it at about a tenth of tretinoin’s potency. Tretinoin is a prescription drug; retinol is sold as a cosmetic.
“You’ll see a difference in two weeks”
Cleveland Clinic says several weeks for skin to look and feel better and several months for wrinkles. The AAD says most anti-aging products need at least six weeks, sometimes three months.
More ingredient guides
Put it in your routine order →Purging or breakout? →Pregnancy-safe check →
One face scan. Your whole routine, sorted.
This page answered your question. MySkincare starts from your own skin, and the products you already use.
- 1Scan your face3 photos: front, left profile, right profile.
- 2See your skin scoreFree6 zones scored separately: forehead, eye area, T-zone, both cheeks, chin.
- 3Scan your productsIt reads each ingredient list and says: keep it, watch it or replace it.
- 4Follow your routineMorning and night, checked so your products work together. With reminders.
Questions people ask
How often should I use retinol when starting?
Every other night for the first couple of weeks: that’s the advice from both the AAD and Cleveland Clinic. Cleveland Clinic adds that some people start slower, once every few days, then build up to once a day. The plan above shows both, and marks which steps are expert consensus. AAD: retinoidsCleveland Clinic: retinol
How much retinol should I use?
About a pea-sized amount for the face, according to Cleveland Clinic. A 2022 review notes that retinoid side effects rise with the dose, so more isn’t better. Cleveland Clinic: retinol2022 review
Should I use retinol in the morning or at night?
At night. The AAD says retinoids make skin more sensitive to the sun, so use them only at night and protect your skin by day. AAD: retinoids
How long does retinol take to work?
Several weeks for skin to look and feel better, and several months for wrinkles (Cleveland Clinic). The AAD says most anti-aging products take at least six weeks, sometimes three months. Check your own start dates → Cleveland Clinic: retinolAAD: anti-aging products
Retinol vs tretinoin: which is stronger?
Tretinoin. A 2022 review puts retinol at about ten times less potent, since skin must convert it to retinoic acid (tretinoin) first. Cleveland Clinic says tretinoin may work faster. It needs a prescription. Tretinoin guide → 2022 reviewCleveland Clinic: retinol
Can I use retinol while pregnant?
No. The AAD says retinoids should not be used during pregnancy and lists over-the-counter retinol among the ingredients to avoid. Pregnancy-safe check → AAD: retinoidsAAD: pregnancy skin care
What retinol should a beginner pick?
We don’t rate brands. The AAD’s rule is the least-intense formula you can find. Since the percentage isn’t always printed, a product that states a low percentage makes it easier to follow (expert consensus). AAD: retinoids
Can I use retinol with vitamin C or niacinamide?
Retinol + vitamin C: space out. Use at different times. Retinol + vitamin C guide → Retinol + niacinamide: same routine. Fine to use together. Retinol + niacinamide guide →
Sources
- Plan steps marked “expert consensus” (3 on this page) have no study or label behind their timing
- Not medical advice
American Academy of Dermatologyaad.org
- Retinoid or retinol? (updated May 2021)
Least-intense formula, every other night to start, slowly building up; only at night, sun protection by day; not during pregnancy; irritation can leave dark marks on darker skin; people with skin allergies or dryness probably not good candidates; retinol % need not be disclosed; tretinoin, tazarotene and trifarotene are prescription.
- How to test skin care products (updated Aug. 2021)
A quarter-sized spot on the inner arm or elbow crease, twice a day for 7 to 10 days; wash off and stop at redness, itching or swelling.
- How to maximize results from anti-aging skin care products
Most products take at least six weeks to work, sometimes three months; start with one product, since several at once can irritate.
- Dermatologist-approved pregnancy skin care (updated June 2025)
Avoid retinoids, including OTC retinol and adapalene; use salicylic acid above 2% and benzoyl peroxide sparingly; a dermatologist suggests vitamin C in the morning and glycolic acid at night.
DailyMed, US National Library of Medicinedailymed.nlm.nih.gov
- Tretinoin cream and gel: FDA label (DailyMed)
Cream 0.025%, 0.05%, 0.1% and gel 0.01%, 0.025% for acne; once a day before bedtime, enough to cover the area lightly, 20 to 30 minutes after washing; apply less often or pause if irritated; early-weeks flare is not a reason to stop; results after 2 to 3 weeks, sometimes more than 6; new blemishes by weeks 3 to 6, improvement after 6 to 12 (leaflet); sun, sunlamps, wind and cold; products to use with caution; pregnancy and nursing wording.
- Adapalene gel 0.1%: OTC Drug Facts label (DailyMed, Dec. 2022)
For acne, ages 12 and up; once a day, never more; a thin layer over the whole affected area on clean dry skin; irritation most likely in the first few weeks; acne may look worse before it improves; up to 3 months; sun, tanning beds, waxing; pregnancy and breastfeeding: ask a doctor.
Cleveland Clinicclevelandclinic.org
- Retinol (updated June 2022)
Patch test; every other day for the first couple of weeks, or once every few days, then ramp up to once or twice a day; a pea-sized dose; several weeks to improve, several months for wrinkles; pimples for the first couple of months; side effects usually temporary; SPF 30; discouraged in pregnancy; tretinoin is stronger.
Studies and other sources
- Adv Ther, 2022: review of retinoids in topical anti-aging treatmentlink.springer.com
Retinol is converted to retinoic acid via retinaldehyde and is about tenfold less potent than tretinoin; 0.3% maximum recommended in face creams; most studies used 0.075% to 0.5%, and two comparisons with tretinoin used 0.25% to 1%; side effects are dose-dependent; start low, raise gradually, use moisturizers.