Greya Standard

The labs we trust.

Greya carries brands the way a sommelier curates wine. We test what we sell, name our manufacturers, and only stock products we’d take ourselves. Below: every brand on the Greya shelf, and what makes it worth carrying.

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The criteria

What it takes to make our shelf.

  • 01

    Clinical evidence

    Every formula references peer-reviewed literature for both ingredient choice and dose.

  • 02

    Manufacturing transparency

    We name every manufacturer and publish COAs by lot.

  • 03

    No proprietary blends

    If a product hides its doses, it doesn't make our shelf.