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GHK-Cu has been proven to stimulate collagen and decorin production and improving wound healing and tissue generation

Tejero, J

However, certain groups may be at greater risk for this problem, including: Vegetarians Vegans Older adults People with digestive problems Signs of a B12 deficiency include fatigue, anemia, muscle weakness, nerve problems, mood disturbance, and intestinal problems

Vitamin B12 plays a big role in fetal *and* neonatal brain development, so its important for vegan and vegetarian mothers (or anyone who might be deficient in vitamin B12) to supplement the nutrient while pregnant or breastfeeding

Vitamin B12, or cobalamin, is essential for many key functions in the body