I've actually bought a lot of products from them considering I watched the owner on youtube for a while now and he advertises on that platform and says they will send COA's, but I've asked 3 times and they've only sent one for yk11. if I ask for the other coa for their other sarms, they don't respond. and I'm sure its easy to fake a coa. I have used their products, but I would like to know if they are forsure legit. we should all email and ask! esp since I've spent a good amount of money on them.