We create supplement brands and bring them to market.
GS Labs designs its own nutraceutical formulas, has them produced by GMP-certified manufacturers in the United States, and sells them online under brands it owns and operates.
A brand company, not a reseller.
Every product we sell started as an idea here: the formula, the name, the label, and the listing. Owning the whole chain is what lets us design, test, and launch a new product in weeks instead of quarters.
Brand creation
We develop the name, the trademark, the packaging, and the positioning for each brand we launch, and we keep ownership of all of it.
Formulation and manufacturing
We write the formulas and have them produced, tested, and packaged by GMP-certified facilities in the United States.
Online retail
We sell direct to consumers through Amazon and our own brand websites, and we run the listings, advertising, and customer care ourselves.
Two brands today. Built to add more.
PhenAprin
Our weight-management brand, sold on Amazon for more than ten years with a line of three products and a loyal base of repeat customers.
RetaBolics
Our newest brand, launched in 2026 with its first product on Amazon and more in development.
Made in the U.S., to GMP standards.
Every GS Labs product is manufactured in U.S. facilities certified to current Good Manufacturing Practices. Finished products are tested by an independent laboratory, and our labels and listings are reviewed against FDA and FTC rules and Amazon's dietary supplement requirements before they go live.
Working with GS Labs
Retailers, manufacturers, suppliers, and partners can reach us through the contact page. We reply within two business days.