Is retinol serum a meme?

[Deleted member 1560]

Retinol is not a scam. It is just 100 times less potent than retin a. Retinol 2.5% is about same as 0.025% retin a. It is perfectly enough to give you a great skin and prevent wrinkling. If you're already wrinkled and have very low collagen, just get retin a 0.05% or 0.1%. Remember though, longer you use, better the results, you won't look better on the first morning after using it.

How long does it take to remove mild acne and how many days for the purging to take place?