What it is
Tretinoin is a vitamin A derivative that binds retinoic acid receptors in your skin and speeds up cell turnover. In the follicle, that normalizes keratinization, the process that lets dead cells clump into the microcomedones every pimple starts from. Fewer clogged follicles means fewer blackheads, whiteheads and inflamed lesions. It has carried an FDA indication for acne for decades, with the deepest evidence base of any topical acne drug.
The 2024 AAD acne guideline gives topical retinoids a strong recommendation, its highest tier. Expect a rough start: dryness, peeling and purging typically begin within 2 weeks and run 4 to 8 weeks. Genuine improvement usually shows between weeks 6 and 12. Still purging past week 12? That is irritation, not purge, and the strength or vehicle needs review at follow-up.
Strengths run from 0.025% to 0.1% in cream, 0.01% and 0.025% in gel, plus microsphere gels from 0.04% to 0.1% that release the drug more slowly and tend to irritate less. Beyond acne, decades of additional evidence support tretinoin for photoaging, which is why it anchors most evidence-based fine-line routines. Apply at night, wear sunscreen by day: photosensitivity is part of the deal.
Who this fits
- Blackheads, whiteheads or inflamed breakouts that OTC options have not moved
- You want the molecule with the deepest evidence base, including photoaging
- Fine lines and sun texture alongside breakouts
- You did fine on adapalene and want to step up
- Not a fit if you are pregnant or planning pregnancy
How the online flow works
- 1
Intake and photos
Complete the online questionnaire and upload clear, well-lit photos of the areas you want treated.
- 2
Video visit
A California-licensed physician reviews your intake and photos with you live and decides whether tretinoin, a different strength, or a different drug fits.
- 3
Pharmacy
Your prescription goes to a pharmacy you choose; a free coupon usually cuts the generic to a fraction of retail.
- 4
Follow-up
A follow-up visit at 8 to 12 weeks checks tolerance and adjusts strength or vehicle.
Side effects, honestly
Honest list, not fine print. Every one of these is part of the consent conversation at your video visit.
- Dryness, peeling, redness and burning, concentrated in the first 4 to 8 weeks
- Photosensitivity: skin burns faster, so daily sunscreen is part of the prescription
- A purge of new breakouts in the first weeks as existing clogs surface
- Not used in pregnancy; tell the physician if you are pregnant or planning to be
The evidence
- Reynolds RV et al. Guidelines of care for the management of acne vulgaris. J Am Acad Dermatol 2024. PMID 38300170.
- Tretinoin professional monograph, Drugs.com (drugs.com/pro/tretinoin.html).
- GoodRx tretinoin cash-price listings, pulled August 2026 (goodrx.com/tretinoin).
Straight answers
- What does it cost?
- A prescribing visit is $79 and each follow-up is $39, itemized on the pricing page; nothing is added at checkout. The tube itself is a separate pharmacy cost; with a free coupon the generic fills for a fraction of retail (numbers in the facts above).
- How can a prescription happen without coming in?
- California law (B&P 2242) allows telehealth prescribing of non-controlled medications when the physician meets the same standard of care as an in-person visit. Tretinoin qualifies. Laser and RF procedures are different: those require an in-person exam first, which is why they cannot start online.
- What is the purge, and how long does it last?
- Retinoids speed cell turnover, which pushes existing clogs to the surface faster. Dryness, peeling and new breakouts typically start within 2 weeks and settle by weeks 4 to 8. Purging past week 12 points to irritation instead, and warrants a strength or vehicle change at follow-up.
- Tretinoin, adapalene or tazarotene?
- Adapalene is generally the gentlest of the class and the common starting point, tretinoin has the deepest evidence base including photoaging, and tazarotene has head-to-head wins on comedones at the cost of more irritation. The video visit sorts this by your history, not by a quiz.
- Does tretinoin help fine lines?
- Decades of additional evidence support tretinoin for photoaging, which is why it anchors most evidence-based fine-line routines. Changes there build more slowly than the 6 to 12 week acne timeline, so plan in months.
- Can I use tretinoin while taking isotretinoin?
- Usually not. Oral isotretinoin works the same retinoid pathway and dries skin substantially, so layering a topical retinoid during a course mostly adds irritation. Bring it to the visit; the physician makes that call case by case.