I'm a 17 year old brown female. I've been dealing with these dark horizontal line son stomach for a few years now. I don't think they're acanthosis nigricans because the skin is not velvety and it doesn't look like the images i found online. They're probably due to slouching but a lot of people who slouch don't have permanent lines like me. How do I get rid of them?
Are there any over the counter products i can use?