Lyophilized (freeze-dried) peptide powder is generally stable at room temperature for weeks to months if kept dry and away from UV light
Karlsen A, Paur I, Bhn SK, et al
Collagen Synthesis and Structural Repair Several studies have examined BPC-157s role in collagen formation, specifically Type I collagen, which is the dominant structural protein in tendons, ligaments, and skin
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Diabetes 58 , 13121320 (2009)
Skin quality: In addition to wound healing properties that can act on the skin, GHK-Cu may provide numerous other benefits for the skin which is why it is a popular ingredient in anti-aging creams and other skin care products