Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
907 reviews
GainfulSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Our Mission: Empowering you to feel pride in attaining your goals. We sweat the details so that you don’t have to – giving you peace of mind that your supplements contain the finest ingredients, specifically for you.FIND YOUR BLENDOUR MISSION
Gainful (gainful.com) has 907 customer reviews on The Fair Hearing, with an average rating of 4.5 out of 5.
Showing 732 reviews with 5 stars · Clear filters
Yes I really love the energy I have throughout the entire workout. No let down body stays relax and calm. Thank you Gain for building the pre-workout and protein towards my needs
By GARY F.
Response from Gainful· Feb 1, 2022
Hi Gary, We're so happy to hear you're enjoying your Gainful! Thanks so much for sharing your experience.
Great formula tailored to my needs. Lost weight and didn’t have that hunger feeling. No jitters like many other products and the taste is awesome. Thanks GainFul for a wonderful supplement. Customer services is amazing as well. Great product from a great company and with great PEOPLE and not robots. Keep up the good work GainFul!!!
By Carlos W.
Response from Gainful· Feb 1, 2022
Hi Carlos! Thanks for leaving a review! So glad that you're enjoying your Gainful 😄
So far…I’m pretty impressed with my protein powder and preworkout! Plus I reached out to my dietitian and they got back to me pretty quickly to answer my question!
By Jojo Z.
Response from Gainful· Jan 31, 2022
Hi Jojo, Thanks for sharing your experience 😄
I love the protein and flavor that come with it. It has helped a lot in my journey so far. I'm so I joined the gainful team.
By Edgar N.
Response from Gainful· Jan 28, 2022
Hi Edgar, Thanks for sharing your experience 😄 We're happy to hear you're enjoying your Gainful!
I absolutely love gainful. It’s my favorite protein of all the ones I ever tried
By Jhona B.
Response from Gainful· Jan 26, 2022
Hi Jhona, We're happy to hear you're enjoying your Gainful 🌟
Good tasting, easy to mix, works great with adding fruit, yogurt etc. Quick satisfying meal. Highly recommend
By Jzwak
Response from Gainful· Jan 24, 2022
Hi Jzwak, Thanks for your review 😄
Great Protein that is made specifically for your goals. The caffeine free watermelon pre workout is great too, gives me a good pump without being all whacked out from too much caffeine. Customer service is spot on. Definitely recommend this company.
By Kevin M.
Response from Gainful· Jan 21, 2022
Hi Kevin, Thanks for sharing your experience! 🌟
So far the gainful product itself has been great, haven’t tried a lot of it yet. It’s pricey, but I get why. It’s exactly what I want in a protein and all of the products are so customizable! I love the flavor additions instead of committing to one flavor. Cookies and cream is the only flavor I’ve tried so far and it’s delish! The customer support team is amazing. I’m really impressed by their responsiveness and humanness. Customer service is the backbone of a company and they are slaying!
By Brandie F.
Response from Gainful· Jan 20, 2022
Hi Brandie, Thanks for sharing your experience! We're happy to hear that you're enjoying your Gainful and that our team was able to help out 😄
