Aliness Biotin 2500 mcg QualiBiotin® 120 tablets. (QualiBiotin®) 2,5 mg 5000%. It is found in animal and plant organisms. It is an essential component of biotin-dependent carboxylases. Quali Biotin® (D-biotin), bulking agent: calcium phosphates, microcrystalline cellulose, acacia fiber (FIBREGUM™), anti-caking agent: silicon dioxide.