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Pasture plants are more-often-than-not so well-rooted and well-anchored that a grazing cow or sheep or horse is incapable of pulling them up: a good thing because Ive yet to meet a cow, horse, or sheep, or goat, who likes to eat a plant, roots and all

To assess tissue repair in research, key endpoints include healing rate, collagen content, and inflammatory cytokine levels

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They added GHK-Cu in concentrations of 10 M to 10 M and measured: Collagen synthesis (by radioactive proline incorporation) Non-collagen protein synthesis Cell proliferation What they found: Stimulation of collagen synthesis by 70 % at the optimal concentration of 10 M (1 nM) The effect was NOT dependent on increased proliferation, fibroblasts increased production per cell Background: GHK without copper had a dramatically weaker effect , Cu is critical Reversibility: After removing GHK-Cu, synthesis returned to baseline Why it matters: This is the fundamental mechanistic study that documented the effect of GHK-Cu on collagen

What Is GHK-Cu and Why Is Everyone Talking About It