Which is better retinol or tretinoin?

Related questions

1. Is AHA and BHA good for skin?
2. Can I use hyaluronic acid and retinol together?
3. How long does BHA take to work?
4. How long does it take glycolic acid to work?
5. Can I use salicylic acid and retinol together?
6. Can I use retinol with AHA?
7. Can you use salicylic acid every day?
8. How long does it take for salicylic acid to kill a wart?
9. Is it OK to use AHA everyday?
10. Should I use moisturizer after salicylic acid?

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