glutathione injection effects on skin Injections vs. Infusions Glutathione Injections for Skin Whitening:

Sikiric P, Rucman R, Turkovic B, et al

As I elaborate on in my video The Symptoms of Vitamin B12 Deficiency , these include: Abdominal distention Chronic diarrhea Shortness of breath Swollen, red, painful feet Skin darkening Bilateral useless hand syndrome Numbness and tingling in the hands and feet Muscle cramps Dizziness Cognitive disturbances Difficulty walking Erectile dysfunction Fatigue Depression Psychosis Coma Blindness Vitamin B12 Deficiency Treatment Is A Vitamin B12 Shot Better Than Taking B12 Orally

Effects of Se on Development and Cognitive Function Selenium is needed for appropriate growth and neurodevelopment, especially during the fetal and early postnatal periods

So, it's not a great biomarker for long-term omega-3 status

Parkin coregulates glutathione metabolism in adult mammalian brain