Brands we own and operate.
Each GS Labs brand has its own name, trademark, formulas, website, and Amazon presence. Product details, ingredients, and ordering live on the brand's own site.
PhenAprin
PhenAprin is our weight-management brand: a line of three products, each with its own formula, sold on Amazon for more than ten years. Most of its sales come from organic search and customers who come back to reorder, which is the clearest measure of a brand doing its job.
RetaBolics
RetaBolics is our newest brand, launched in 2026 with its first product on Amazon and additional products in development. It is built the same way PhenAprin was: our own formulas, GMP-certified U.S. manufacturing, and a direct relationship with the customer.
Where to buy
GS Labs products are sold on Amazon.com, where our storefront operates under the name Sutra Health, and through each brand's own website. We do not sell through third-party resellers.