Certificate of Analysis

Manufacturer-level COA documentation for this product — the same records we receive from our ingredient suppliers.

Tested & Verified

Chaga Extract — Tested for Antioxidant & Immune Support

Chaga (Inonotus obliquus) is traditionally valued for its antioxidant content*. We use real fruiting body extract — not myceliated grain — paired with Vitamin C. This page shows what's in it and how it's verified.

Why fruiting body extract

We source real Chaga fruiting body extract, water-extracted and standardized for consistent potency. No myceliated grain, no grain-starch filler.

The Vitamin C pairing

We pair Chaga with Vitamin C, which supports normal immune function and acts as an everyday antioxidant*. The two complement each other for daily antioxidant and immune support*.

Testing & Certificates of Analysis

Manufacturer-level COAs available — verified for active compounds, heavy metals, pesticides, and microbial limits.

Chaga fruiting body extract

Chaga fruiting body extract Certificate of Analysis, page 3

Vitamin C

Why we source it this way

Real fruiting body extract, a complementary vitamin, manufacturer COAs on file, and a vegetable cellulose capsule. No artificial additives or binders.

Daily antioxidant & immune support

Real fruiting body extract paired with Vitamin C — manufacturer COAs on file.

Shop Chaga

Sourcing: We source from suppliers who conduct ingredient testing and provide Certificates of Analysis. We rely on manufacturer-level verification; we do not perform independent testing.

Ingredients: Contains maltodextrin as a natural carrier per COA. No artificial fillers.

Our Testing Standard

Real Fruiting Body
Verified Active Compounds
Manufacturer-Level COAs
Globally Sourced & Verified

Shop All Supplements

Testing FAQs

What is a Certificate of Analysis (COA)?

A Certificate of Analysis is a document from the ingredient manufacturer that confirms the identity, purity, and potency of a raw material. It shows what was tested, the method used, and whether results meet specifications. They also test for Microbial and Heavy Metal containments.

Who performs the testing?

Testing is performed by the ingredient manufacturers before raw materials are shipped to our production facility. These are manufacturer-level COAs — the documentation starts at the source. We do not offer third-party testing for our products yet.

What does >20% Polysaccharides mean?

Polysaccharides — including beta-glucans — are the primary bioactive compounds in functional mushrooms. A standardized extract verified at >20% polysaccharides means at least 20% of the extract's weight is composed of these active compounds.