Your feedback shapes every formula we build. Read real stories from members, share yours, and see how personalized stacks are working for women like you.
“I've tried so many supplements and honestly nothing has worked like th…”
— Hassan T.
“Three weeks in and I already feel the difference. My morning energy is…”
— Isabella J.
“I've been on a health optimization journey for about three years and h…”
— Lauren B.
Worth a read
What people are saying
The reviews are in — and they've been loving the results.
Stack is AMAZING
I've tried so many supplements and honestly nothing has worked like this. The quiz is actually thorough and the results show it. Energy is UP, recovery is UP, sleep is SO much better. Can't believe it took me this long to find this brand.
Hassan T.
Best decision I made this year — HANDS DOWN
Three weeks in and I already feel the difference. My morning energy is COMPLETELY different. No more dragging myself out of bed. The personalization through the quiz is what makes it work — it's not just a generic multivitamin. Stack actually thought about what MY body needs.
Isabella J.
A genuinely thoughtful supplement brand
I've been on a health optimization journey for about three years and have tried what feels like every supplement brand on the market. Most of them are either generic multivitamins dressed up in pretty packaging, or they're so specific that you need to be a nutritionist to…
Really good supplement brand. The daily pack format is so convenient and I've been 100% consistent because of it. The quiz was genuinely thorough. Knocked one star off because I'd love the option to add or remove individual supplements as I learn more about my body.
K
Kate B.
4.0
Good quality, minor feedback
Good product overall. The quiz was straightforward and the recommendations seemed genuinely tailored to me. I've noticed improved energy after about a month. Would love more communication about what each supplement is doing for me specifically.
A
Abigail K.
4.0
really good product
really good product and good concept, i like it alot. the quiz was alot more detailed than i expected and the packs are super convienent. been on it for about 6 weeks and definitly feeling better energy wise. would recomend to anyone looking for personalized supplements.
S
Sofia Q.
4.0
Great concept, good execution
Happy with my Stack experience. The quiz was detailed, the packs arrived quickly and I've felt improvements in sleep and energy. My one suggestion would be a mobile app to go alongside the subscription. Otherwise great.
K
Kezia E.
4.0
Good product, fast shipping
Solid product that does what it promises. My sleep has noticeably improved and the daytime energy is more stable. Dropped one star only because I had a small shipping delay — but customer service sorted it quickly. Would still recommend.
A
Amanda F.
4.0
Really solid, would recommend
Really solid supplements and the personalization aspect is legit. Shipping was super fast too. Only reason I'm not giving 5 stars is I wish there was an app to track how I'm feeling over time. Product itself is great though.
E
Emmanuel K.
4.0
pretty good overall
been using stack for about 6 weeks and honestly pretty happy with it. energy is better, sleep has improved. the quiz was more detailed than i expected which was reassuring. only feedback is i wish i could update my quiz answers every few months as my routine changes.
A
Amanda F.
4.0
Great concept, good execution
Happy with my Stack experience. The quiz was detailed, the packs arrived quickly and I've felt improvements in sleep and energy. My one suggestion would be a mobile app to go alongside the subscription. Otherwise great.
C
Chase K.
4.0
Good product with room to grow
I've been using Stack for about two months now and my overall experience has been positive. The quiz was genuinely thorough — more so than I expected — and the personalized pack that arrived clearly reflected my answers.
Results have been good. My energy throughout the day is more stable, I'm sleeping better, and my workout recovery has improved. These are real, noticeable changes and I'm happy about them.
The reason I'm giving 4 rather than 5 stars comes down to a few things I'd love to see added:
1. An app or dashboard to log how I'm feeling over time and track progress
2. The ability to re-take the quiz as my lifestyle changes (I changed jobs since signing up)
3. More in-depth explanation of each ingredient in my pack and why it was chosen for me
The core product is excellent and I'll keep subscribing. These are improvements I hope the team considers.
M
Mason V.
4.0
Strong results after 6 weeks
Really good supplement brand. The daily pack format is so convenient and I've been 100% consistent because of it. The quiz was genuinely thorough. Knocked one star off because I'd love the option to add or remove individual supplements as I learn more about my body.
P
Preston G.
4.0
Good product, fast shipping
Solid product that does what it promises. My sleep has noticeably improved and the daytime energy is more stable. Dropped one star only because I had a small shipping delay — but customer service sorted it quickly. Would still recommend.
E
Evan T.
4.0
pretty good
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.