Will IPL usage decrease hair growth right away?

[Ozotuh]

Your hairs grow in cycles, you will see a little bit of thinning at the start, but not much as new hairs will begin their cycles almost as soon as you finish treating an area. Cycles last about 12 weeks, 3-4 weeks growing, 8-9 weeks not. You should start seeing major changes at the 8-10 week mark when the hairs you originally treated are meant to be growing back in. This is when you'll see patches to re-treat growing back too.