About Seed
Seed Health is a microbial sciences company co-founded in 2018 by Ara Katz and Raja Dhir, built around a science-first approach to the microbiome rather than a conventional supplement-aisle formula. Its flagship product, the DS-01 Daily Synbiotic, combines 24 genetically distinct bacterial strains across 12 species with a polyphenol prebiotic outer capsule, and the company reports the finished formulation has been evaluated in multiple randomized, double-blind, placebo-controlled clinical trials, including a published 350-person trial on bloating, gas, and digestive quality of life.
Rather than counting live organisms by the older plate-count method, Seed labels DS-01 in AFU (active fluorescent units), a flow-cytometry-based measure the company positions as a more precise viability count. In our own testing for this guide, DS-01 earned a place in our women's probiotic roundup as the clinical-grade pick on the strength of that published trial data on the complete formulation, its capsule-in-capsule delivery system, and a vegan, dairy-free, soy-free, and gluten-free formula that fits most restricted diets.
Brand website: seed.com
What Seed makes
Seed's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
DS-01 Daily Synbiotic
the 24-strain adult synbiotic capsule, Seed's flagship formula and the product we reviewed — featured on BestRatedDocs
PDS-08 Pediatric Daily Synbiotic
a synbiotic formula developed for children
VS-01 Vaginal Synbiotic
a synbiotic formulated for vaginal microbiome support
Why we recognized Seed
The BestRatedDocs Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our category reviews. Seed earned it on the strength of the products below, evaluated the same way every product on this site is: assessed against clinical criteria, verified specifications, and real-world user outcomes, and judged on merit.
Seed products we rated highly
Seed DS-01 Daily Synbiotic
The only product in our women's probiotic guide with published, randomized, placebo-controlled trial data on the complete finished formulation rather than only its individual strain components. Its capsule-in-capsule design nests the 24-strain culture inside a polyphenol prebiotic outer shell for layered protection through the stomach, and it is labeled in AFU, a flow-cytometry viability count rather than the older plate-count convention. In our review, its vegan, dairy-free, soy-free, and gluten-free formulation stood out as suited to most restricted diets, and we noted it as our clinical-grade pick despite not being marketed specifically for women.
Read the Best Probiotics for Women of 2026 guide →What earned Seed the recognition
- DS-01 Daily Synbiotic earned a place as a top pick in our Best Probiotics for Women guide on the strength of published, placebo-controlled clinical trial data on the finished formulation itself, not just its component strains.
- The formula combines 24 genetically distinct bacterial strains across 12 species with a polyphenol prebiotic outer capsule in a capsule-in-capsule delivery system, engineered to protect the culture through gastric acid.
- Seed measures viability in AFU (active fluorescent units) via flow cytometry, a methodology it positions as a more accurate count than the traditional CFU plate-count method most competitors use.
- The finished formulation is vegan, dairy-free, soy-free, and gluten-free, meeting a broader range of dietary restrictions than most probiotic capsules in our reviews.
- Founded in 2018 by Ara Katz and Raja Dhir, Seed has built its programme around company-funded, gold-standard clinical trials on its products rather than relying solely on individual-strain research.