Education only · provider review required
Tretinoin · The approved retinoid behind most "anti-ageing" claims
A prescription medicine with decades of evidence — and the standard other skin products are measured against.
Medically reviewed by Bernard Garcia, MD
What it is
Tretinoin is a prescription retinoid FDA-approved for acne and, in specific formulations, for fine wrinkles and photodamage. It has the strongest evidence of any topical for skin ageing and is the benchmark against which peptide creams are usually compared.
How it works
Tretinoin binds retinoic-acid receptors, increasing cell turnover and collagen production over months. Irritation is expected early; sun sensitivity requires protection. It is contraindicated in pregnancy.
Research status
| Research area | Status |
|---|---|
| Acne | FDA-approved |
| Fine wrinkles / photodamage | FDA-approved (specific products) |
| Comparison with topical peptides | Tretinoin has substantially more evidence |
| Pregnancy | Contraindicated |
Status reflects published research context only and is not a statement of safety, efficacy, or suitability for any person.
Is it legal?
Tretinoin is FDA-approved and prescription-only. This is a general note, not legal advice.
Frequently asked questions
Why is a retinoid on a peptide site?
Because it is the honest comparison for skin peptides like GHK-Cu: a prescription with strong evidence versus cosmetics with modest evidence.
Is over-the-counter retinol the same?
No. Retinol is a weaker precursor available without prescription.
Does Vitrex prescribe it?
No. A provider may consider it after intake; that is their decision.
Next step
Next step: a 3-minute confidential intake, reviewed by a licensed provider. No treatment is promised or implied.
Free · about 10 minutes · reviewed by a licensed physician
General education · Not medical advice · Provider approval required