The Hair SerumThe same magical, clean formula as our best selling Eyelash Serum now in a powerful hair serum! Revitalize the appearance of fuller and thicker hair and beard with our advanced blend of active ingredients. Infused with biotin, peptides, keratin and other actives that support visibly stronger, fuller looking hair. Best of all! The serum is easy to apply with a roll on applicator and has a non oily formula that doesnt make your hair greasy.