Quality 89 out of 100 · Strong
Quality score implied by adjustments: 50 baseline plus 39 points equals 89. Gaia has above-average and in some areas elite quality controls for an herbal brand, especially NSF GMP verification, ISO 17025 accredited in-house methods, and disclosed contaminant and identity testing. The main limiter is that the public batch result portal is not currently functioning as a public COA system, and there is a very old 2011 FDA Form 483 record that receives only a small temporally discounted penalty.
Not scored: The exact current ISO scope certificate, all recent FDA inspection dates, and batch-level lab reports for current retail lots were not fully accessible from public pages.
How this score was built
Starts at 50, ends at 89.
- +14 NSF GMP facility certification verified. NSF official listing for Gaia Herbs under NSF/ANSI 455-2 GMP was current in June 2026, and Gaia states its herbs are manufactured and bottled in an on-site organic certified, NSF/ANSI 455 certified, FDA registered cGMP facility. Awarding high end but not maximum because this is facility GMP certification, not USP finished product verification or broad NSF Certified for Sport coverage. 3,5 Current listing checked in 2026. Full weight. · full weight
- +12 ISO/IEC 17025 accredited in-house laboratory methods. Gaia announced ISO 17025 certification for 24 in-house methods in 2022, including microbial contamination, heavy metal contaminant, and label claim program testing, and current Gaia pages still describe an on-site ISO-certified lab. Awarding the top of the ISO range because the scope includes relevant contaminant and potency methods, but evidence is for in-house accredited methods, not a public third-party COA for every batch. 1,4 Certification announced in 2022 with annual renewal language and current official site references. Treated as current. Full weight. · full weight
- +6 Heavy metal testing disclosed. Gaia says every batch is tested for heavy metals and other contaminants, and its ISO-accredited method scope includes heavy metal contaminant testing. This earns the high end of the heavy metal testing range because the claim is batch level and linked to accredited methods, though batch reports are not currently public. 1,2,4 Current official pages and 2022 ISO announcement. Full weight. · full weight
- +5 Microbiological testing disclosed. Gaia states each product is tested for microbes, and the ISO-accredited method scope includes microbial contamination testing. Awarding high end because it is tied to batch testing and accredited methods. 1,4 Current official page and 2022 ISO announcement. Full weight. · full weight
- +5 Ingredient identity and potency testing disclosed. Gaia describes DNA testing for identity, pre-harvest potency testing, HPLC potency analysis, and label claim program testing. Awarding high end because the methods cover identity and potency, but the exact method list is not fully public in the cited pages. 1,2,4 Current official pages and 2022 ISO announcement. Full weight. · full weight
- −3 Old FDA Form 483 observation record. Third-party FDA inspection databases indicate Gaia Herbs has had 2 Form 483s and 0 warning letters, with one visible 483 dated December 16, 2011. Rubric range for 483 observations is minus 10 to minus 15. Because the documented 483 is more than 10 years old and no warning letter is shown, applying 25 percent temporal weight to a low-severity minus 12 equals minus 3 points. 6,8 Documented 2011 Form 483 is over 10 years old. 25 percent temporal weight. · 25% weight

