ghk-cu serum hair Neurogan Copper Peptide & Scalp – 2400mg, 4% Copper Peptides – Fast-Absorbing, Water-Based Formula for Hair Softness & Shine and hair Wholesale GHK-Cu Copper Peptide Hair

What differentiates suppliers is the purity at the time of manufacturing (verified via Janoshik testing) and the shipping speed (how much time the peptide spends outside refrigeration)

With the 50 mg vial reconstituted in 1 ml, the concentration is fixed, so your unit count maps directly to milligrams

Though the gene encoding DSIP has not been identified and its receptor remains unknown, emerging studies indicate that its activity may be mediated through NMDA receptors in the brain and 1-adrenergic pathways in peripheral tissues

They are not appropriate during pregnancy or breastfeeding, or for women with certain hormone sensitive conditions, which is why medical evaluation comes first