This matrix is not just collagen and elastin
JAMA, 322(13), 1271-1282
[6] Chang CH, Tsai WC, Hsu YH, Pang JH
Examples include BPC-157 for healing and recovery, CJC-1295 or Ipamorelin for hormone support, and certain peptides that encourage collagen production for healthier skin
Loren Pickart, who discovered that plasma from young adults (age 20-25) could stimulate old liver tissue to synthesize proteins characteristic of younger tissue and identified GHK-Cu as the active factor

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