Acne photo
Acne
StrongFirst-line for clogged pores and pimples.
Also called Retin-A, Retin-A Micro, Altreno, Atralin
The gold-standard retinoid. A prescription form of vitamin A that clears acne and is proven to reverse sun damage.
Medical review pending
Review date to come
Key Facts
1971
First FDA-approved for acne.
20×
Roughly more potent than retinol.
12 wks
To judge acne results.
Rx
Prescription-only in the US.
What Is It?
Retinol and other over-the-counter retinoids must be converted by the skin before they work. Tretinoin is retinoic acid — the final, active form — so it works directly and more strongly.
The conversion path
Gentlest, OTC
OTC
OTC
Active · Rx
Often Used For
First-line for clogged pores and pimples.
Builds collagen.
Best in a triple cream.
Smoother surface over months.
Off-label.
Early red marks only.
How It Works · 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
Forms & Dosing
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.
Safety & Side Effects
Important. Avoid during pregnancy or when trying to conceive.
How to Use It
Interactions & What to Avoid
Soothe the barrier.
Use in the morning instead.
Alternate nights.
Adds to sun sensitivity.
Skin can lift and tear.
Not recommended.
Monitoring & Follow-Up
Baseline photos in the same light.
First check-in; adjust frequency or base.
Judge results; step up if needed.
Call sooner for blistering, swelling or pregnancy.
Results & What to Expect
Peeling, dryness, possible purge.
Fewer breakouts; skin adapts.
Clearer, more even tone.
Softer fine lines.
Access & Cost
Best for complex acne or melasma.
[$ visit]
Online visit; shipped home.
[$/month]
Discount cards cut cash prices.
[$/tube]
Tip. Insurance often covers it for acne, sometimes after prior authorization.
Alternatives
If…
it’s too irritating
If…
you’re pregnant
If…
acne is severe or scarring
Common Questions
Faster turnover can bring clogged pores up in the first 2–6 weeks.
Tretinoin is already active, so it’s stronger and better studied.
It breaks down in sunlight, so use it at night.
Yes; people use it for decades.
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.