Expect gradual brightening rather than dramatic fading
This shift doesn't "stop" pigment entirely, but it changes the hue of the pigment being produced, which many people find results in a brighter, "glowing" appearance
alkaline phosphatase (ALP) [25] and glucose (GLU) in the blood are thought to reflect damage to the liver [26], while serum calcium (Ca), serum sodium (Na), and urea in blood are thought to reflect damage to the kidney [27,28,29,30,31]
They do not treat the autoimmune cause of Hashimotos
Summary: Vitamin B12 treatment typically begins producing early haematological responses within 34 days, with neurological symptoms starting to improve within 12 weeks, though complete symptom resolution may require several weeks to months depending on deficiency severity and treatment route