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…
Three weeks in and already feeling the difference. Sleep is better, energy is up. Impressed.
Three weeks in and already feeling the difference. Sleep is better, energy is up. Impressed.
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.
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.
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 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!!
Let me be honest — I was deeply skeptical about personalized supplements. It felt like a marketing gimmick to charge more for what is essentially just a curated multivitamin. I did my research, read the science, and decided to give it a three-month proper trial. The quiz was impressively detailed. Questions about dietary habits, stress levels, sleep quality, exercise type and frequency, specific health goals. It clearly wasn't a one-size-fits-all approach. After three months: - Sleep quality: dramatically improved. I'm falling asleep faster and waking up genuinely refreshed. - Energy: the afternoon slump that used to hit me at 3pm is essentially gone. - Gym performance: recovery is noticeably faster, workouts feel stronger. - Bloodwork: my GP ran a panel at my annual check-up and my iron and vitamin D were both in optimal range for the first time in years. The convenience factor is also underrated. One daily pack removes all decision fatigue around supplements. I've been 100% consistent for three months because the habit is completely frictionless. This is the real deal.
good product and nice packaging. energy has improved after a month. would be 5 stars with a tracking app.
I've been taking supplements for 15 years and the difference with Stack is that it actually adapts to what I need rather than a generic formula. The quiz is genuinely thoughtful and the results reflect that. My bloodwork at my last check-up was the best it's been in years.
Three weeks in and already feeling the difference. Sleep is better, energy is up. Impressed.
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.
wasn't sure what to expect but after about a month i'm genuinly surprised by how much better i feel. energy is up, sleep is better, i'm recovering faster from workouts. the quiz captured my needs really well. super happy with stack overall.
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