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…
Four months in and this is hands down the best wellness decision I've made. The packets are so easy to travel with — I never miss a day now because it's so frictionless. Energy, sleep, mood — all measurably better.
I cancelled three supplement subscriptions when I found Stack. Why take three different things when one personalized pack covers everything you actually need? The simplification alone is worth the price. The results on top of that make it a no-brainer.
okay i genuinely didn't expect to feel this much of a difference so quickly but here we are lol. sleep is better, energy is more stable throughout the day, gym recovery is faster. the fact that it has my name on the packet is adorable too. love stack!!
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.
i was a bit skeptical about personalized vitamins but honestly the quiz was really thorough and i could tell alot of thought went into it. been taking it for 6 weeks and my energy has definitly improved. sleeping much better too. definately recommend to anyone who wants to get serious about their health.
Before Stack I had zero consistent supplement routine. Now it's one pack, every day, effortless. Results speak for themselves.
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.
Since I started taking Stack, my energy levels have noticeably improved and I'm recovering faster after exercise. At my last check-up my GP asked what I'd changed — Stack was the first thing I mentioned. The personalized approach clearly addressed deficiencies generic vitamins couldn't.
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 understand what you're actually taking. Stack sits in a completely different category. The quiz is the first thing that impressed me. It asks genuinely intelligent questions — not just 'how old are you and what's your gender' but questions about your diet, your sleep patterns, your stress levels, your exercise frequency. It felt like a real consultation rather than a data collection exercise. The pack that arrived was clearly personalized to my answers. After six weeks, the improvements have been consistent and measurable: better sleep quality, more stable energy throughout the day, and noticeably faster recovery after my runs. My partner commented that I seemed more 'on' in the evenings rather than crashing after dinner. The daily pack format is brilliant for compliance — I've been 100% consistent because the habit is so frictionless. One pack, done, every morning. No bottles, no measuring, no forgetting half of them. Genuinely one of the best health investments I've made.
Okay so I was really doubtful at first but after a month I am OBSESSED. The energy difference is real, like genuinely noticeable. Sleep has been SO much better. The little pack with my name on it is such a cute touch. Definitely recommending to everyone I know.
Was very skeptical. Tried it anyway. After 5 weeks — WOW. Energy is genuinely better, I'm sleeping deeper, and my mood has been so much more stable. The quiz was thorough and you can tell the formula is actually personalized. 100% worth it.
Okay so I was really doubtful at first but after a month I am OBSESSED. The energy difference is real, like genuinely noticeable. Sleep has been SO much better. The little pack with my name on it is such a cute touch. Definitely recommending to everyone I know.
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