whats ghk-cu Neurogan Copper Peptide Neck & Face Serum - 1200 mcg - 1oz GHK: A comprehensive researcher's handbook

Improves hair appearance Dexpanthenol coats the hair, adding shine, smoothness, and softness while protecting against external damage

What the evidence supports today is biological plausibility worth a proper trial

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A separate comparative study - measuring actual collagen production via skin biopsies - found that 70% of women using GHK-Cu showed increased collagen production after one month, compared to 50% for vitamin C cream and 40% for retinoic acid cream