Seed’s flagship product, the DS-01 Daily Synbiotic, contains 24 probiotic bacterial strains and a prebiotic compound made from Indian pomegranate, all packed into a nested two-capsule system. The total potency is 53.6 billion active fluorescent units (AFUs) per dose, which counts only live, active bacteria rather than the traditional colony-forming unit (CFU) measurement that can include dead cells.
The 24 Probiotic Strains
Seed organizes its bacterial strains into targeted blends, each selected for a specific area of health. The digestive health blend includes strains aimed at gut regularity, stool consistency, and overall digestive comfort. A gut barrier integrity blend focuses on reinforcing the intestinal lining, which acts as a filter between your gut contents and your bloodstream. When that barrier weakens, bacterial fragments can leak into the blood and trigger inflammation throughout the body.
Beyond digestion, DS-01 includes strains targeting cardiovascular and skin health. One strain in particular, Lactiplantibacillus plantarum LPLDL, was tested in a clinical study with adults whose cholesterol was on the higher end of normal. Over 12 weeks, it helped maintain those cholesterol levels compared to a placebo. The mechanism behind this involves an enzyme called bile salt hydrolase. Certain gut bacteria produce this enzyme, which changes bile acid structure so less of it gets recycled. When recycling slows, your liver pulls more cholesterol from the bloodstream to make fresh bile, effectively helping manage cholesterol levels.
Another strain in the formula, Bifidobacterium lactis MB2409, has shown high bile salt hydrolase activity in lab studies, reinforcing that cholesterol-management pathway. The strains also produce short-chain fatty acids, which fuel the cells lining your colon, support gut barrier strength, and have anti-inflammatory effects that may benefit blood pressure and fat metabolism.
The Prebiotic: Pomegranate Punicalagins
The “synbiotic” label means DS-01 combines both probiotics and prebiotics. The prebiotic component is punicalagins, a class of compounds sourced from Indian pomegranate. Unlike typical prebiotic fibers that ferment in the gut and can cause gas or bloating, punicalagins are classified as non-fermenting. They’re housed in the outer capsule shell, separate from the probiotic strains inside.
The Nested Capsule Design
One of the more distinctive features of DS-01 is its delivery system. The product uses a capsule-within-a-capsule design. The outer capsule is made with chlorophyllin (a plant-derived green pigment) and contains the prebiotic. Nested inside is a second capsule holding the 24 probiotic strains. This layered approach is engineered to protect the live bacteria from stomach acid and bile salts during digestion, so more of them arrive intact in the lower intestine where they do their work.
This matters because many probiotic products lose a significant portion of their bacteria before they reach the gut. Stomach acid is highly destructive to most bacterial strains, and without some form of protection, a large percentage of what you swallow never makes it to where it needs to go.
How Potency Is Measured
Most probiotics list their potency in colony-forming units, or CFUs. Seed uses a different metric: active fluorescent units (AFUs). The distinction is meaningful. CFU counts include bacteria that may be dead or dormant, while AFU testing uses fluorescent markers that light up only when bacteria are alive and metabolically active. Seed’s DS-01 delivers 53.6 billion AFUs per two-capsule dose, which the company argues gives a more accurate picture of what’s actually viable in each serving.
Clinical Testing
Seed has put DS-01 through a randomized, double-blind, placebo-controlled trial, the gold standard study design. The study enrolled 100 adults with IBS with constipation and ran for 12 weeks, evaluating safety and tolerability as primary outcomes while also examining gut barrier integrity and the metabolic output of the gut microbiome. Individual strains in the formula also carry their own clinical evidence, like the cholesterol study on the plantarum LPLDL strain.
Seed’s Pediatric Formula: PDS-08
Seed also makes a children’s version called PDS-08, which contains 9 probiotic strains divided into three targeted blends. The gastrointestinal blend includes four strains (among them Lacticaseibacillus rhamnosus and Bifidobacterium breve) focused on gut comfort, healthy stool consistency, regularity, and intestinal barrier support during disruptions like illness or antibiotic use.
A respiratory health blend contains two strains validated in children to support healthy respiratory tract function and response to seasonal allergens. The third blend, for dermatological health, includes three strains targeting the gut-skin axis, a pathway through which gut health influences skin clarity and smoothness. This skin blend includes specific Bifidobacterium lactis, Bifidobacterium longum, and Lacticaseibacillus casei strains.
Storage and Shelf Stability
Seed’s products are designed to be shelf-stable, meaning they don’t require refrigeration. This is possible because some bacterial strains tolerate heat and environmental stress better than others, and freeze-drying technology combined with protective packaging helps preserve viability at room temperature. That said, keeping any probiotic away from excessive heat and moisture is a good practice. If your bathroom cabinet gets steamy, a bedroom shelf or kitchen drawer is a better spot.
What’s Not in It
DS-01 is vegan, with the capsule shells made from plant-based materials rather than the gelatin used in many supplements. The formula is free from common allergens, and the product contains no preservatives, fillers, or the gummy-bear sugars found in chewable probiotics. The chlorophyllin outer capsule and pomegranate prebiotic are the only non-probiotic functional ingredients.