Testing labs in San Francisco, CA

Anresco Laboratories

San Francisco, CA· 8:18 AM

Family-owned FDA-recognized analytical lab (since 1943) for food, supplement and cannabis testing including microbiology, heavy metals, pesticides, nutritional labeling and Prop 65.

Labdoor

San Francisco, CA· 8:18 AM

Independent supplement testing and rating company that purchases top-selling vitamins and supplements from retail and sends them to FDA-registered laboratories for purity and label accuracy testing. Publishes free results and ranks supplements on a 100-point scale covering label accuracy, purity, nutritional value, efficacy, and safety.

TESTED by SuppCo

San Francisco, CA· 8:18 AM

Independent supplement testing and certification program launched March 2026 that anonymously purchases off-the-shelf supplements and tests them through ISO 17025 accredited laboratories. Products meeting or exceeding 95% of labeled active ingredient claims earn TESTED by SuppCo certification. All testing results are publicly published. Partners with brands including Momentous, Thorne, Metagenics, and Gaia Herbs.