Natrol FAQ

Here are answers to common Frequently Asked Questions about taking Vitamins, Minerals and Supplements for our customers, distributors and health practitioners. If you have any additional questions, please contact us here.


Natrol, LLC is currently GMP certified by NSF International, which is a certification company that sets standards and provides compliance for dietary supplement businesses under NSF/ANSI 173, Section 8. This program includes monitoring and compliance with US Food and Drug Administration (USFDA) FSMA and cGMP requirements described in 21 CFR Part 111 and 21 CFR Part 117.


In 2019, Natrol’s Melatonin and Biotin products became USP (United States Pharmacopeia) certified by passing the USP Good Manufacturing Practice (GMP) Quality Systems audit.


Natrol has been in business since 1990, dedicated to providing the highest quality vitamins, minerals and supplements initially to US consumers, and now around the world.


The Natrol, LLC corporate campus consists of two facilities, both are located in Chatsworth, California and a majority of products are manufactured on-site at our world-class production facility. For Natrol products that are not made on-site, we have partnered with a small selection of qualified contract manufacturers that can consistently assemble products in keeping with our high-quality standards for manufacturing. All contract manufacturers are located in the USA.


Our products use ingredients that are derived from high quality raw goods located throughout the world. The ingredient raw sources are not always obtained from US manufacturers, and often originate in different countries where these ingredients are made. Although these ingredients may not originate from the US, all Natrol product ingredients undergo a variety of tests to ensure they meet the same federal requirements for quality that all US ingredients must adhere to.


Our ingredient and product quality testing program are specific based on the constituents of each different product, but in general our testing program includes qualitative and quantitative scientific analysis to assure the identity, purity, strength, contamination and composition of each product and ingredient. Our testing protocol is designed to comply with FDA cGMP requirements described in 21 CFR Part 111. Our laboratory equipment includes, ICPMS, FTNIR and HPLC, operated by trained Chemists and Quality Control Technicians.


California Proposition 65 is a California state law that prohibits intentional exposure to more than 930 chemicals without first providing a clear written warning. Proposition 65 is primarily concerned with preventing exposure to heavy metals, especially lead. Proposition 65-indicated products will be clearly labeled on Natrol product labels.


Natrol embraces environmental conservatism, striving to minimize its eco-footprint in a variety of ways. Natrol strives to purchase raw materials from environmentally-friendly vendors that source goods from environmentally-sustainable processes. Natrol products are all sold in recyclable PET or HDPE bottles, which can easily be provided municipal recycling programs after use. Natrol corporate headquarters are currently being renovated to encourage:

  1. Drought-resistant and sustainably-irrigated landscaping
  2. Electric vehicle/carpool accommodation
  3. solar energy considerations

Glass bottles are a particularly difficult container to bottle products in due to the risk to employees if any of the bottles shatter. Additionally, glass bottles cost more and weigh more than plastic bottles, increasing the overall product and shipment costs, and resulting transportation carbon footprint.