15Sep High-dose Biotin with Vitamin B7 for hair, nail, skin, and metabolic research. Injectable delivery provides superior bioavailability compared to oral supplementation. TOTAL DOSE40mg COMPOUNDSBiotin + Vitamin B7 FORMATInjection Pen Kit KIT CONTENTS1 pen, 12 needles, booklet Every kit ships with a scratch-off verification code.
