DAILY DIGESTIVE & IMMUNE SUPPORT
30-day supply
Key Benefits
Supports daily digestive regularity
Promotes healthy gut microbiome balance
Supports immune function via gut-immune axis
Gentle daily-dose probiotic for maintenance
Wellness Goals
Recommended Dose
10 billion CFU
Take one capsule daily with or without food. For best results, take at the same time each day to establish a routine. If you're new to probiotics, your body may need a few days to adjust — this is normal.
Get your personalized dose3rd Party Tested
Doctor Formulated
cGMP Certified
The Details
Your gut is home to trillions of microorganisms that influence everything from how you digest food to how you fight off a cold. When that ecosystem gets thrown off — by stress, travel, antibiotics, or just a week of questionable food choices — things can go sideways fast.
A daily 10B probiotic acts like a steady deposit into your microbial savings account. It keeps the good guys well-represented so the less desirable strains don't take over. Research consistently shows that daily probiotic supplementation supports healthy digestion, regular bowel movements, and a more robust immune response.
Unlike mega-dose probiotics that can sometimes cause bloating or discomfort, this 10 billion CFU formula is calibrated for everyday use. It's the "just right" dose for maintaining balance without overdoing it.
Research
Key studies supporting 10B Probiotic, from peer-reviewed journals.
Probiotic supplementation improves cognitive function and mood with changes in gut microbiota in community-dwelling older adults: a randomized, double-blind, placebo-controlled, multicenter trial — 2021
Study titles are simplified for readability. Provided for informational purposes — not medical advice.
Transparency
Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.
Designed by healthcare professionals using evidence-based research and clinical expertise.
Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.
Important Information
Contraindications
As with any natural health product, consult your healthcare practitioner. Store in a cool, dry place. Keep out of reach of children. Discontinue use immediately if you experience an adverse event.
What people say
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.
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 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.
My focus at work has been sharper and I'm waking up without that groggy feeling I used to have every morning. Told two friends about Stack already. Customer support was also really helpful when I had a question about one of the ingredients.
honestly wasn't sure about it at first but three weeks in and i'm so glad i tried it. energy is way better, i'm sleeping properly for the first time in months. the quiz was really detailed which gave me confidence it was actually personalized. would 100% recommend.
Personalized for you
Take our 2-minute Health Assessment and let our AI build your personalized stack — every supplement chosen for your specific goals.
Take the Health AssessmentProduct images are for illustrative purposes and may not represent actual packaging.
