Source Naturals Triple Boron Contains Three Forms Of The Trace Mineral Boron Citrate, Aspartate, And Glycinate Suggested Use: 1 Capsule Daily With A Meal Well Made Supplement. Contains No Yeast, Dairy, Egg, Gluten, Soy Or Wheat. Contains No Preservatives, Or Artificial Color, Flavor Or Fragrance Trusted For Over 35 Years. Source Naturals Was Created In 1982 By Ceo Ira Goldberg To Support Each Individual'S Potential To Enjoy Optimal Health Manufactured In The Usa. Our Facility Is Located In Scotts Valley California Source Naturals Triple Boron Contains Three Forms Of The Trace Mineral Boron Citrate, Aspartate, And Glycinate. Preliminary Studies Suggest That Boron Is A Factor In Maintaining Strong, Healthy Bones And Joints. Preliminary Research Also Suggests Boron May Support Cognitive Function In Older People, Prostate Health, And The Modulation Of Testosterone Levels