Phenibut HCL (powder)$44.99 50 grams (powder) For Research Purposes Only Not For Human Consumption Out of stock SKU: Phenibut HCL-powder-50-grams Categories: Anxiolytics / Muscle Relaxers, Research Chemicals Related products Clenbuterol $46.99 – $69.99 Select options Isotretinoin $49.99 Add to cart Letrozole $38.99 Add to cart Tamoxifen $38.99 Add to cart