Hair responds to deficiency because B12 is essential for protein metabolism and cell regeneration in hair follicles
Another study treated subjects with a 1000 mcg dose of sublingual methylcobalamin every day for one week before reducing the dose in the following weeks to once daily every other day, twice a week, and once a week within a four-week period
(PubMed) Essen A, Santaolalla A, Garmo H, et al
What AHK-Cu offers that minoxidil doesn't is that it supports overall scalp health rather than targeting a single pathway and there's no dependency concern - hair doesn't shed if you stop
If you are low in Vitamin D, restoring your levels via injections can have the following health benefits: Providing immune system support for staving off colds and other viruses Maintaining strong and healthy bones and teeth Maintaining bone density, particularly as we age, thus reducing risk of fractures Maintaining strong muscles and aiding muscle recovery in sport Restoring energy and combating fatigue Stabilising mood Although Vitamin D supplements can be taken orally, a lot of the product is lost through the bodys digestive process
PMID: 25756278 This page explains vitamin B12 injection schedules for educational purposes only