Juven has been shown to improve hydroxyproline, a marker of collagen synthesis. Collagen is a building block of new tissue to help repair the skin after injury and surgery. Juven is a unique blend of 3 key ingredients: ReVigor (a source of HMB) and the conditionally essential amino acids arginine, and glutamine. A balanced diet is essential for building tissue, but sometimes more is needed. This is when Juven can help. Just two packets of Juven each day provide the therapeutic nutrition to support building tissue. Herbspro.com is proud to carry the entire range of this fine brand.