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The substitution wouldn't address the same research question

May improve elasticity and firmness : Although changes in the skins elasticity and firmness begin as early as the mid-twenties, they become more noticeable in your forties and fifties as the skin loses structural support

In a mouse model of gingival sulcus, locally inducing periodontitis with LPS and proteases elevated gingival hexanoyl-lysine (HEL) expression, leading to elevated HEL levels in the serum and increased 8-OHdG levels in kidney tissue (Tomofuji et al., 2011)

GHK-Cu Uses GHK-Cu is naturally present in the body, meaning it is able to help with various repair and regenerative processes, which have been validated through a number of different scientific studies