I was skeptical, and also a little scared as I have super sensitive skin and I was worried about a reaction. But fear not, this stuff is the absolute bomb, it's worth every cent of it's rather hefty price tag. It's super gentle, but within one day of starting to use this I could already see that my skin was more even-toned and calm. It also plays nicely with my retinoid, so much so that I think it's actually boosted the results I get from it whilst reducing irritation. Win!