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Phenibut HCl Powder – 25 grams Introduction Phenibut (β-phenyl-γ-aminobutyric acid) is a neuropsychotropic substance developed in Russia for its anxiolytic and nootropic properties. As a derivative of the neurotransmitter GABA (gamma-aminobutyric acid), Phenibut is utilized for its ability to reduce anxiety, improve sleep, and enhance cognitive function. Phenibut HCl (Hydrochloride) is the most common form,…