Just that really. I was getting regular Olaplex treatments at the salon and my hair felt much healthier, obviously haven't been able to now for months with the salons being closed. I've been using the kerastase resistance extentioniste shampoo and masque for a while and it does seem to be helping with growth as my roots have come through much quicker and a couple of people have commented that my hair looks longer, but since using the shampoo my hair gets greasy much quicker and my scalp is so itchy. I was wondering if anyone has tried any other products that claim to speed up growth, and if they noticed a difference