This stuff stays! I went swimming wearing this foundation (I have red acne spots on parts of my face and body) and it stayed on, with only a tiny bit of streaking. I've never tried Dermablend because my scars aren't severe but I can't stress this product enough for anyone who is self-conscious about acne marks. It's lightweight but you can build coverage, depending on your preference. The trick is to blend because it dries quick. Plus Buff has yellow undertones, which suits my pale yellow skin.