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 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.
Getting my quiz results and understanding the areas I needed improvement on was fantastic. I now have a much better understanding of my body. Taking the supplements is simple and I have been feeling great since starting. Stack has also cleared out my vitamin cupboard completely.
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.
Started taking Stack about 6 weeks ago and the results have honestly surprised me. Sleep quality is WAY up, my afternoon crashes are basically gone, and my workouts feel stronger. The daily pack format means I actually remember to take them every single day. LOVE IT.
My partner keeps asking what I've changed. Better mood, more energy in the evenings, waking up actually refreshed. Stack quietly transformed my daily baseline. I didn't even realize how much until I looked back at how I used to feel.
didn't expect to write a review but here i am because the results genuinely surprised me. energy and sleep are SO much better.
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.
What I appreciate most is that the quiz asks about my actual lifestyle — stress levels, sleep quality, diet — not just my age. That's real personalization. The results show in how I feel every single day. I've cancelled every other supplement subscription I had.
Simple, effective, personalized. Exactly what I needed.
I'm a 43-year-old woman who has struggled with energy and sleep for years. I've tried everything from melatonin to magnesium to B12 shots. Some things helped a little, nothing helped consistently. A friend recommended Stack and I was ready to try anything. The quiz took about 5 minutes and asked more intelligent questions than I expected. When my pack arrived I was genuinely curious about what had been included and why. The ingredient list made sense for my situation. Weeks 1-2: Honestly felt nothing dramatic. Managed expectations. Week 3: Started waking up before my alarm feeling actually rested. This was new. Week 4-6: Energy throughout the day noticeably more stable. No afternoon crash. Month 2+: My skin has improved (wasn't expecting this), my workout recovery is faster, and I've been more emotionally even. I've now been on Stack for four months. It's the first supplement routine I've ever maintained consistently and that alone tells me something. The results are real and sustained.
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.
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.
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