What is the tretinoin purge?
Tretinoin speeds up how quickly your skin replaces its cells. Clogged pores that were already forming under the surface come up sooner than they otherwise would, so you may see more spots for a few weeks before your skin clears.
How long does tretinoin purging last?
- Starts: usually within the first 2 weeks.
- Peaks: around weeks 2 to 4.
- Settles: for most people within 6 to 8 weeks.
Purging vs a breakout vs irritation
| Purging | Irritation | |
|---|---|---|
| Where | Where you normally get breakouts | Anywhere you apply it |
| What it looks like | Small spots and blackheads that clear faster than usual | Redness, stinging, burning, flaking or a rash |
| How long | A few weeks, then improves | Continues while you use it at the same frequency |
How to get through the purge
- Keep using it consistently, but use it fewer nights a week if your skin feels sore.
- Moisturise well and keep the rest of your routine simple.
- Don't pick or squeeze spots, as this can leave marks.
- Avoid adding new actives or exfoliants while your skin adjusts.
When to stop and get advice
Stop using tretinoin and speak to a doctor or pharmacist if you have swelling, severe burning, blistering, a rash, or breakouts that are still getting worse after 8 to 10 weeks.
If purging feels like too much, a lower strength such as 0.025% can make the adjustment period easier.
Answer three quick questions and we'll match you to 0.025%, 0.05% or 0.1%.
Frequently asked questions
Does everyone purge on tretinoin?
No. Many people don't purge at all, and for others it is mild. It is more common in acne-prone skin.
Should I stop tretinoin if I am purging?
Usually not. Purging is temporary. Reduce how often you apply it if your skin feels sore, and stop only if irritation is severe or doesn't settle.
Can a lower strength reduce purging?
It can make the adjustment gentler. Starting on 0.025% and building up slowly is a good way to reduce irritation.
This guide is general information, not medical advice. Tretinoin is a medicine: read the product information and speak to a doctor or pharmacist if you have questions, are pregnant or breastfeeding, or have a skin condition.