Research-backed compound with potential health benefits.
Your skin getting worse before it gets better. Tretinoin pushes all the gunk in your pores to the surface. It lasts 4-6 weeks. Power through it.
Yes. Non-negotiable. Tretinoin makes your skin way more sensitive to sun damage. Use SPF 30+ every single morning.
Yes, but not at the same time. Use vitamin C in the morning, Tretinoin at night. Separating them prevents irritation.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
For acne, 8-12 weeks. For wrinkles and texture, 6 months to a year for the full effect. This is a marathon, not a sprint.
Back off. Drop down to every 3rd night. Use a heavy-duty moisturizer. Try the 'sandwich method': moisturizer, then tret, then more moisturizer.
No. Tretinoin is the active form, about 20x stronger than OTC retinol. That's why it needs a prescription and works so much better.
Most research uses 0.1g daily. Below 0.0g, you're probably wasting money. Above 0.1g, no extra benefit. The curve plateaus. Safe upper limit ~ 0.1g.
Pending comprehensive analysis.
Tretinoin is a retinoid, a class of compounds derived from Vitamin A. While Vitamin A is found in foods, Tretinoin itself is synthetically produced for stability and potency.
Tretinoin interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.