I've been using this product every night for about 3 weeks. I got it for acne scars and hyperpigmentation, haven't seen a drastic change but there was definitely SOME change. Full transparency, I don't use sunscreen and recently found out sun exposure can worsen hyperpigmentation so that might have been what was limiting me. I don't get sunburns but I do live in an area with LOTS of sun exposure. I will keep trying the ampoule with a sunscreen this time and update this review!! As for texture, I did feel a little sticky the 1st 2 nights but my skin adapted quick and I don't feel any sticky feeling or residue!! [My skin color does subtlety change often so even in the same lighting the pics may look diff but I'll try to get better pics next time! Bottom = Before; Top = After]