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GNC

GNC's Pro Performance and AMP lines have a long block on the October 2026 Informed-Choice list, including whey, casein, creatine, citrulline, and glutamine. Some names are marked India or International. Informed-Choice is a banned-substance screen, not proof the formula matches a clinical dose.

Checked 15 October 2026. 11 products below. Programs: Informed Choice. A seal applies to the named product, not to every bottle this brand sells. Lists change; use the certifier link before you treat a seal as current.

Which certifications, and where to recheck them

Products on the official list

ProductCertificationIngredient page
GNC Pro Performance 100% WheyInformed ChoiceWhey protein
GNC Pro Performance 100% Casein ProteinInformed ChoiceCasein protein
GNC Pro Performance Creatine Monohydrate PowderInformed ChoiceCreatine monohydrate
GNC Pro Performance Creatine CapsulesInformed ChoiceCreatine monohydrate
GNC Pro Performance Creatine + HMBInformed ChoiceCreatine monohydrate
GNC Pro Performance Citrulline ComplexInformed ChoiceCitrulline (L-citrulline, pure form)
GNC Pro Performance L-Glutamine PowderInformed ChoiceGlutamine (standalone, healthy adults)
GNC Pro Performance L-Glutamine CapsulesInformed ChoiceGlutamine (standalone, healthy adults)
GNC AMP Creatine 189Informed ChoiceCreatine monohydrate
GNC Live Well CreatineInformed ChoiceCreatine monohydrate
GNC Pro Performance P.M. Zinc MagnesiumInformed ChoiceMagnesium, Zinc

Supplement pages

These links go to the ingredient pages, which describe the evidence. The certification above is about the named product, not about whether the ingredient works.

Other checked brands

Full verified-brands directory · What these seals do and do not mean

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