From the Manufacturer:
Promotes Shiny & Lustrous Hair** Healthy Hair is within reach! Over time, the keratin proteins found in hair may change. Supplementing with Nature's Bounty® Optimal Solutions® Healthy Hair Keratin Formula can help promote shiny and lustrous hair to help you feel beautiful.** Healthy Hair Keratin Formula contains 500 mg of Cynatine® HNS Keratin complex◊, which promotes shininess and brightness.** Your hair will feel and look stronger and healthier.**
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.