Tretinoin Purge Timeline Calculator
Know exactly when it ends — and when clear skin starts
The tretinoin purge is the most common reason people quit before seeing results. Enter your skin type and strength to get a personalised timeline showing each phase, what symptoms to expect, and exactly when you should start seeing improvement.
Tretinoin Purge Timeline
Know exactly what to expect — and when it ends
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A Ret Gel 0.025%
$18 per tube
After week 10, consider upgrading to:
A Ret Gel 0.05%
View →Tretinoin is a prescription medication in many countries. This timeline is a general guide only — individual results vary. Always use sunscreen daily when using tretinoin. Consult a dermatologist before use.
What is the tretinoin purge?
The tretinoin purge is a temporary increase in breakouts that occurs when you first start tretinoin. It happens because tretinoin accelerates skin cell turnover, pushing sebum and debris that was clogged deep in pores to the surface faster than usual.
How long does the tretinoin purge last?
For most people, the purge lasts 3–8 weeks depending on skin type. Oily, acne-prone skin tends to purge faster. Sensitive and dry skin types experience a milder but sometimes longer adjustment period. The purge is not a sign that tretinoin is damaging your skin — it is the treatment working.
Should I stop tretinoin during the purge?
No. Stopping during the purge means restarting the process from scratch. The key is to reduce application frequency if irritation is severe (every other night instead of nightly) but not to stop entirely. Consistent use is what gets you past the purge and into the results phase.
Tretinoin is a prescription medication in most countries. Always use SPF 30+ sunscreen daily when using tretinoin. Consult a dermatologist before starting.