Certifications
Quality you can verify.
Low prices never mean low standards. Every ONLY LABS product is manufactured, tested and documented to the same benchmarks as the premium brands, then priced honestly.
GMP
GMP Certified
Produced in a facility certified to Good Manufacturing Practice standards — strict controls over cleanliness, equipment, process and documentation on every single batch.
NSF
NSF Certified
Independently certified by NSF — verifying that what's on the label is what's in the product, and that it's free from unsafe levels of contaminants.
Our promise, on every label
Third-party tested
Every batch verified by an independent lab for purity and potency.
Made in the USA
Manufactured domestically in a certified facility.
No proprietary blends
Every dose fully disclosed. No hidden amounts.
No filler ingredients
Only what matters, nothing that doesn't.
Want the paperwork?
Certificates of analysis (COAs) are available for every batch. Request the documentation for any product and we'll send it over.