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For hair loss, BPC-157s repair capabilities extend to damaged follicles particularly those affected by scalp inflammation, scarring, or trauma-related hair loss

"Stimulation of sulfated glycosaminoglycan and proteoglycan biosynthesis by the tripeptide copper complex glycyl-L-histidyl-L-lysine." Cellular and Molecular Biology , 38(1), 99-106

5 Japanese research from 1994 into the effects of B12 therapy in patients with multiple sclerosis shows that a daily tablet with 60 mg methylcobalamin during six months is non-toxic

Different mechanism no interaction

Meanwhile, even though your Folic Acid status is great and red blood cells appear normal, not having enough B12 will cause homocysteine to build up, leading to neurological damage and changes in DNA function without you realizing it until symptoms set in