why are my b12 injections not working Vitamin Deficiency: Symptoms, Causes & Treatment Pernicious Anemia: Definition, Symptoms, Causes

Last reviewed: May 30, 2026 Last updated: May 30, 2026 Written by: Jay Hastings, CEO of PlexusDx Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations

Collagen production requires glycine in a 1:3 ratio with other amino acids in the collagen structure

A lipotropic injection typically includes vitamin B12, methionine, inositol, and choline

"Definitely tastes like the smell your hands would get after swinging on the swings at the park." - Girlnscrubs For some, the sensation is mild and short-lived

Ensure Sterility : Use a new syringe for each injection to prevent infections

Patients with a history of kidney stones or renal impairment should use with caution