サイズ:<strong>1個</strong>          	      	     	 	 		 			Natrol Biotin supports healthy hair and nails, in addition to energy production. A water-soluble B-complex vitamin, biotin is necessary for cell growth and the production and metabolism of fat into amino acids. Natrol Biotin?? provides 1,000 mcg to help ensure the daily need for this essential nutrient is met.