I attended a meeting with FDA staff from the Denver District Office in November of 2014.  The meeting was an annual update from FDA addressed to the members of the Rocky Mountain Regulatory Affairs Society.  Since most of the members work with medical devices, the speakers from FDA focused on that industry sector and in particular talked about Purchasing Control Regulations since failure to comply with them results in a large number of failed inspections, warning letters and product recalls each year. The term “Purchasing Controls” is only used in the regulations for medical devices but the language of these regulations are informative for dietary supplement, food and cosmetic companies as well.
The regulations covering good manufacturing practices (GMPs) for dietary supplements commonly use the phrase, “ensure that the [product, components, labels and packaging] are consistent with your purchase order”.  The GMP regulations for foods and the GMP guidance for cosmetics both refer to specifications for ingredients.  Since it is impossible to consistently make quality products unless you have ingredients of consistent quality, it is imperative that your purchasing department have detailed information about the requirements for each ingredient or component used in your product.  In other words, purchasing needs detailed ingredient/component specifications.

Let’s take a brief look at the medical device purchasing control regulations to learn more:

21 CFR 820.50(b) states, “Each manufacturer shall establish and maintain data that clearly describe or reference the specified requirements, including quality requirements, for purchased or otherwise received product and services…”

This could mean that the herbs you purchase must be accompanied by chromatograms that document the amounts of key phytochemical components.  It may mean that you must list a range for the required viscosity of certain oils to ensure that your cosmetic will have the right thickness. In the case of a food ingredient such as cayenne pepper, it may be important to define the acceptable Scoville Heat Units so that the final product will live up to your label claims of mild, medium and hellfire.

21 CFR 820.50(b) continues, “Purchasing documents shall include, where possible, an agreement that the suppliers, contractors, and consultants agree to notify the manufacturer of changes in the product or service so that manufacturers may determine whether the changes may affect the quality of a finished device.”

This is a very important consideration for companies that are using contract manufacturers.  Your contract with your manufacturer should explicitly define not only which ingredients may be substituted but what substitutions are acceptable and that you are to be notified when the manufacturer finds it necessary to make any change to your product.
As specified in the device regulation, the best way to ensure that you always get quality ingredients and services is to first set requirements/specifications for your ingredients, components and service providers and then evaluate their ability to meet your requirements before you contract with them. If your company has purchasing controls that are followed and followed up on by the quality and manufacturing departments it is far more likely that the products, components, labels, etc. will be consistent with your purchase order and meet your specifications.
That, in turn, will please your customers!
I started my consulting business in 2001 after 15 years working in FDA-regulated industry.  Since that time my colleagues and I have served hundreds of dietary supplement, food, cosmetic and device companies from around the globe.  My colleagues and I are ready to help you determine which FDA regulations apply to your product and what you need to do to comply with them.