b12 injection hyperpigmentation as a Primary Symptom of Vitamin Deficiency: A Case Report Vitamin B12 Hyperpigmentation Before and

Compounded micronutrient injections: Evidence-based dosing guidelines

According to a recent paper in the Journal of Clinical, Cosmetic and Investigative Dermatology, three factors are thought to contribute to dark circles under eyes: hyperpigmentation, a tendency for more dilated, thicker or increased number of capillaries and thinner skin in the under-eye area

Vegans and Vegetarians : Since B12 is primarily found in animal products, those following a plant-based diet are often at risk of deficiency

GI changes (constipation or diarrhea) are more often linked to B12 deficiency or underlying gut conditions that also impair B12 absorption