GNC operates a long-standing US retail and franchise store network
Their claimGNC's physical store presence is a long-public fact about the company; we did not independently count current store locations for this entry.
Where the vendor states thisMainstream supplement brand
GNC is a decades-old US supplement retail chain, both online and with a large physical store footprint, selling third-party brands alongside its own house lines (including GNC-branded protein and vitamins).

quality claims we could confirm ourselves, rather than repeat from the vendor's marketing.
A general supplement retail catalog spanning protein, vitamins, pre-workout and weight-management categories, mixing its own house brand with many third-party brands.
This is an informational review of a mainstream, widely available consumer brand, not a research-use-only or prescription product. Nothing here is medical advice, and nothing here should be read as an endorsement to buy. We describe what the brand says about itself and what we could find in the public record, and we separate the two.
Graded by whether we could confirm it ourselves or are only repeating what the vendor states. A vendor's honesty about its own testing is a different question from what a published trial shows, so this is a separate scale from the evidence grades on our guides.
GNC's physical store presence is a long-public fact about the company; we did not independently count current store locations for this entry.
Where the vendor states thisAs a multi-brand retailer, GNC's own house-label claims should not be assumed to apply to the third-party products it also sells.
GNC sells both its own house-label lines and many third-party brands; a given product may be manufactured by GNC's house-brand supplier or by an outside brand GNC simply retails.
Every fact above traces to one of these pages, published by the vendor itself and checked on September 26, 2026. Vendor policy pages change without notice, so if something here looks out of date, it probably is.
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Open pricing, public COAs, strict research-only gate