Good Manufacturing Practice (GMP) is the gold standard for how supplements should be made. Every W+S product is produced in a GMP-certified, FDA-registered facility — so quality isn't a claim, it's built into every bottle.
GMP is a system of standards that governs how a product is manufactured, packaged, labeled and stored. Its purpose is simple: to prevent contamination, mix-ups, and errors — and to ensure every batch is consistently high in quality, from the first bottle to the last.
For dietary supplements, GMP requires manufacturers to verify the identity, purity, strength and composition of every ingredient and finished product. It's how a supplement earns your trust before it ever reaches your hands.
Documented procedures and specifications that keep the whole operation consistent and accountable.
A clean, controlled physical environment and properly maintained equipment used in production.
Verifying the identity and purity of every raw ingredient, container and label before use.
Controlled, well-documented manufacturing, packaging and labeling at every step.
Testing raw materials and finished products for conformance to specification — not just at the end.
Proper storage and handling that protects quality all the way to your door.