Quality 90 out of 100 · Excellent
Manufacturing quality evidence is above average for a mainstream supplement brand. The strongest signals are current NSF/ANSI 455-2 GMP facility listings for the Nature's Way platform, ISO 17025 in-house lab claims, and explicit identity, potency, contaminant, microbiology, and stability testing disclosures. The main limitation is not a documented quality failure, but the lack of broad public batch-level COAs for Enzymatic Therapy lots.
Not scored: I did not find a public Enzymatic Therapy batch COA portal, product-level NSF Certified for Sport listing, USP Verified product listing, or current FDA inspection record specific to Enzymatic Therapy products. The analysis relies heavily on current Nature's Way and Schwabe evidence because Enzymatic Therapy is now operated under that platform.
How this score was built
Starts at 50, ends at 90.
- +13 NSF/ANSI 455-2 GMP facility certification verified for the current Nature's Way manufacturing platform that now carries legacy Enzymatic Therapy products. NSF's current listing shows Nature's Way and Integrative Therapeutics facilities in Green Bay, Wisconsin, under NSF/ANSI 455-2 dietary supplement GMP, including 825 Challenger Drive and 3466 East Mason Street, with capsule, liquid, powder, soft gel, tablet, gummy, packaging, quality unit, and warehousing scopes. Awarding the upper middle of the +10 to +15 range because multiple relevant facilities and product technologies are listed, but this is facility GMP certification rather than product-level NSF Certified for Sport. 3,4,5 Current listing reviewed in 2026. Full weight. · full weight
- +10 ISO 17025 in-house testing capability disclosed. Nature's Way says its state-of-the-art lab meets international ISO 17025 standards, is annually audited, and performs identity, purity, potency, composition, contaminant, microbiology, physical, and stability testing. Awarding +10 within the +8 to +12 range because the lab capability is unusually specific for a mass-market supplement company, but the public page does not provide batch-level numerical COAs for Enzymatic Therapy lots. 1,2 Current official quality pages reviewed in 2026. Full weight. · full weight
- +8 Testing from formulation to finish and FDA and CFIA dietary supplement compliance are disclosed. Nature's Way states every supplement is tested from formulation to finish and meets FDA and CFIA requirements for supplements in the United States and Canada. Awarding +8 for broad testing disclosure, below the high end because this is primarily company-disclosed testing rather than a comprehensive public COA program. 1,6 Current official pages reviewed in 2026. Full weight. · full weight
- +5 Contaminant, heavy metal, residual chemical, and microbiology testing are explicitly disclosed. The quality portal states contaminant testing checks regulated limits for bacteria, heavy metals, and residual chemicals, while the Herb Check page lists analytical, microbiology, physical, and stability testing. Awarding +5, combining the rubric's +3 to +6 contaminant and microbiological testing positives without double counting the ISO 17025 adjustment. 1,2 Current official pages reviewed in 2026. Full weight. · full weight
- +4 Ingredient identity and potency methods are disclosed for at least some products. The DGL Ultra ingredient page describes HPTLC botanical fingerprinting against certified botanical reference standards, and the general testing portal describes identity, potency, and composition testing. Awarding +4 because the method disclosure is meaningful, but coverage appears product or ingredient page dependent rather than a complete lot-level database. 2,48 Current official pages reviewed in 2026. Full weight. · full weight

