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Using the American Gut Project database and fecal microbial data collected from a Chinese population, Li et al
99 B12 deficiency in infants can cause anaemia, abnormal skin and hair development, convulsions, failure to thrive, mental developmental delay and possibly abnormal movements, and direct supplementation of the infant is recommended in such cases
Sevak P, Pushkar B
GHK-Cu Cosmetic Per Day Daily Dose Comparison Key Takeaways GHK-Cu demonstrates a narrow therapeutic window in vitro: concentrations below 1 M fail to upregulate collagen synthesis, while concentrations above 10 M trigger cytotoxicity in fibroblast cultures
individual results vary
supplementing with GHK-Cu can have powerful regenerative properties of skin cells
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