It is hard to say. I have never used them before so I can't comment on their quality. There are a lot of fake SARMS floating around on the market. Remember that SARMS can only be legally sold as a research chemical liquid. Stay away from capsulated SARMS products.
I personally buy all my SARMS from sarms1.com. If it isn't broken, don't fix it. I hope you didn't get scammed but if a product is really cheap, thats usually a red flag that it's fake or under-dosed. The mark up on SARMS is not near as good as people think.