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PubMed Modabbernia, A., Rezaei, F., Salehi, B., Jafarinia, M., Ashrafi, M., Tabrizi, M., Hosseini, S.M., Tajdini, M., Ghaleiha, A., & Akhondzadeh, S
Scientific Insight: Research indicates that GHK-Cu can increase collagen production by up to 70% in vitro , making it highly effective for anti-aging and regenerative applications
Dosage and how often you need it Dosing is where a clinic matters
For a product comparison that stays focused on absorption, see What Form of Glutathione Is Best for Maximum Absorption
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