This nutritive supplement supports thicker, fuller hair with biotin, silicon and arginine. It also nourishes hair, skin and nails with essential nutrients. This one-per-day formula is non-GMO and vegan. Why Optimal Solutions Hair Growth? Many people may notice a change in the quality and quantity of their hair as they age. According to research, more than 50 percent of women may experience noticeable hair loss by age 50 caused mostly by age-related hair thinning. Natures Bounty Optimal Solutions Hair Growth features an Advanced Hair Complex, a unique combination of key nutrients that provides nutritional and structural support for the growth of thicker, fuller hair. Advanced Hair Complex The Advanced Hair Complex works by delivering these key nutrients Biotin, Silicon, and Arginine to the hair follicles and encourages the growth of thicker, fuller hair* What is Biotin? Biotin, a water-soluble vitamin, and part of the B-Vitamin family is a co-enzyme for mitochondrial carbohydrates in hair follicles and is involved in the synthesis of keratin, a fibrous protein that forms the main structural component of hair.* Water-soluble vitamins are not readily stored in the body; therefore, they should be consumed every day. Biotin is found in foods such as oatmeal, vegetables, legumes, and soy. What is Silicon? Silicon is the third most abundant trace mineral in the human body and accumulates in the epicuticle, which is the outermost layer of hair. Silicon is involved in the synthesis of sulfur-rich proteins like keratin. These proteins provide structural support for hair. While you can get this nutrient from foods such as grain, fish, meat, and eggs, Silicon may also be taken as a supplement to support and nourish healthy hair.* What is Arginine? Arginine is also involved in keratin production. It is one of the many amino acids that make up this structural protein in hair. Arginine is also a precursor to nitric oxide. Nitric oxide is an important compound in – Supports healthy hair, skin and nails with biotin, silicon and arginine. – One tablet per day with water at mealtime. – No artificial flavors or sweeteners. – Dosage form : Capsule – Flavor : Unflavored – Material feature : GMO Free – Item form : Capsule – Primary supplement type : B-Complex – Serving recommendation : 1 capsule