Zinc 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…
Overall really happy with Stack. The quiz was GREAT and I've noticed real improvements in my energy and sleep. Only thing stopping me from 5 stars is I'd love an app to go alongside it. But the product itself is SOLID. Recommend.
Overall really happy with Stack. The quiz was GREAT and I've noticed real improvements in my energy and sleep. Only thing stopping me from 5 stars is I'd love an app to go alongside it. But the product itself is SOLID. Recommend.
Enjoying Stack so far. I'm about 7 weeks in and energy has improved, sleep is more consistent. The personalization feels real and not just marketing. Minor thing — the quiz could ask a few more questions about dietary restrictions.
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.
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.
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.
Solid product, real results. Just wish there was an app to track progress. Energy and sleep both improved noticeably.
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.
good product, nice packaging, the quiz was solid. been taking it for 5 weeks and definitely feeling more energy during the day. would give 5 stars if there was an app to go with it but that's a minor thing. overall recommend.
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.
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.
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.
Your turn
Personalized vitamins in 2 minutes. No guesswork — just what your body needs.
Take the quiz