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Beyond this, it is highly versatile, effective on the abdomen, inner arms, inner thighs, knees, and any area where skin has become loose and lost its structural resilience
doi: 10.1016/j.jep.2025.119365 130 WangYYuZZhangZMuRSongJYangZet al
Tackiness: Light, but noticeable Hydration: Quite nice
Pros: "1%" appears in product name, though it is unclear if this refers to GHK-Cu specifically or the total peptide blend Five named peptide technologies in one bottle $32/30mL - most affordable pick by a wide margin Vegan, cruelty-free, alcohol-free, silicone-free National Eczema Association Seal of Acceptance Cons: "1%" may refer to total peptide blend, not individual GHK-Cu concentration