Product works !
Love this company, Great products, Great customer service.
By Ruben P.
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
639 reviews
Select a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Blackstone Labs makes the most hardcore supplements for gaining mass, building muscle, lean gains, cutting, and getting big.
Blackstone Labs (blackstonelabs.com) has 639 customer reviews on The Fair Hearing, with an average rating of 4.6 out of 5.
639 approved reviews, newest moderated first
Love this company, Great products, Great customer service.
By Ruben P.
I made a one time purchase and all of a sudden you guys are trying to go into my account again without asking to do so. Totally greasy work practice
By Michael C.
Response from Blackstone Labs· Apr 7, 2026
Greetings, I am uncertain of your complaint. Nobody tried to go "into" your account. It is not possible for us to access your password.
Didn't have what I wanted and 50 bucks of clumps is not what I ordered. My first time buying and probably my last. Another failure of a quality control.
By TONY M.
Did not receive the 15% discount. Called and even spoke with the guy and he never credited me nor called me back. Will not be recommending or reordering.
By Stacey E.
These guys have great products that are very effective as well as great customer service! I am a member for life!
By Ben S.
Besides the products of being some of the best in the market, I get the best advice and the best consultation for each type of supplement that is used for my specific needs
By Geo A.
Black stone customer service sucks. Horrible experience, you reach out to them and they don’t respond, you have to message them three times before they give you a response that doesn’t even answer your problems. I can’t review the products because I never received them. Do not buy black stone products from them, they will rip you off.
By GM
wonderful service got freebie and shipped quickly
By Amelia H.