I bought them to get rib of the hyperpigmentation on my Bikini line. At first I just used the scrub, it helped so much! I didn’t use the serum for a while, util recently. I was getting stretch makes on my thighs nothing was working than I remembered I had the serum and gave it a try. Kidding you not I saw results from 1 use and the stretch marks were pretty dark! (I fair skin) I showed my sister and was so shocked I just ordered more for myself & her. I would highly recommend.