Are these 3rd party tested?

NOW Vitamin B-100 like the rest of Now Foods products are tested using NOW Foods' own in-house laboratories, which are independently certified to international ISO standards. These advanced facilities are equipped to perform extensive quality and safety testing on both raw materials and finished dietary supplements. NOW Foods employs more than 160 scientists and laboratory technicians who conduct over 37,000 tests each month. Its laboratories hold ISO 17025 accreditation for both chemical and biological testing, demonstrating adherence to internationally recognized laboratory testing standards. Every lot is evaluated for factors such as heavy metals, ingredient identity, adulterants, microbial contaminants, and potency. While NOW Foods may occasionally use independent third-party laboratories to confirm testing results, routine third-party testing is not standard practice because of the extensive capabilities of its own accredited facilities. NOW Foods' in-house laboratories are designed to provide comprehensive supplement quality, purity, potency, and safety testing. If you require third-party testing documentation specifically for NOW Vitamin B-100 or another NOW Foods supplement, consider contacting NOW Foods directly to request testing information or clarification for a particular product or batch.