Customer Reviews
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.
Average rating
from 473 reviews
Worth a read
The reviews are in — and they've been loving the results.
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.
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.
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…
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.
Three months in and genuinely pleased. The personalization through the quiz works well and I've felt real improvements in energy and focus. Minor feedback — it would be great to have an option to update my quiz answers as my lifestyle changes.
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.
Three months in and genuinely pleased. The personalization through the quiz works well and I've felt real improvements in energy and focus. Minor feedback — it would be great to have an option to update my quiz answers as my lifestyle changes.
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.
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.
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