b12 injection cattle Vitamin for Cattle, Sheep, Swine, Horses, Dogs & Cats - 3000mcg Injectable 100cc Rx only Sold in 100 mL or 250 mL vials Provides 3 Vitamin B-12 Injectable Solution

As far as the medicationlittle to no side effects which is a plus for me.

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How Copper Peptides Promote Hair Growth (Mechanisms of Action) Copper peptides extend the active growth phase of the hair cycle, allowing follicles more time to produce longer, thicker hair

doi:10.1016/s1871-5125(10)35003-5

In a nutshell what each of these ingredients do: b12 = energy

Because cobalamin in normally absorbed from food through the gastrointestinal tract, chronic diseases that adversely affect the ability of the intestines to absorb nutrients (inflammatory bowel disease is an excellent example) can lead to cobalamin deficiency