
Raw Milk Kefir Starter Grains (live culture)
Live kefir grains. Add to milk, ferment 24 hours, strain. Generates 30+ live strains per batch for the cost of the milk. The probiotic the supplement industry would rather you forget exists.
Secure checkout · Tax calculated at checkout
Product details
Live kefir grains. Add to milk, ferment 24 hours, strain. Generates 30+ live strains per batch for the cost of the milk. The probiotic the supplement industry would rather you forget exists.
How Codex curates products
Every product passes three checks before it reaches you.
Brand discovery
We surface brands operators and coaches are already buying — never paid placement.
Wellness review
Each SKU is scored against our charter: ingredient quality, evidence, claims, sourcing.
Operator-tested
Coaches and studios in our network try it on real clients before we recommend it.
Learn more

Guide
Seed DS-01: the most over-engineered probiotic on the market, and it might be worth it
A two-capsule, twenty-four-strain probiotic with an outer shell that survives stomach acid and a price tag that hurts. Worth it with caveats — and what to eat instead if you're not in the market for premium capsules.

Guide
Olipop: prebiotic soda or just clever sugar?
Better than Coca-Cola. Not the gut hero the Instagram ads claim. A useful step-down drink with caveats.

Guide
Psyllium husk: the cheapest, most boring supplement that actually works
No marketing, no nervous-system theatre — just one ingredient that quietly fixes most people's gut, cholesterol and blood sugar for about €0.15 a serving.
Vetted under the Codex charter
We only stock products that pass our ingredient, evidence and sourcing review. If a SKU stops meeting the bar, it's delisted — full stop.