Comment “cup” and I will send you the cup I use! Premature grey hair (before age 35) has several well-established causes: Genetics is the biggest factor. Oxidative stress plays a central role. Nutritional deficiencies are a common and often overlooked cause: • B12 deficiency (very relevant with vegetarian/vegan diets or low meat intake) • Ferritin (iron stores) — even borderline low levels affect pigment • Vitamin D, copper, and zinc also matter Chronic stress accelerates greying Thyroid dysfunction (both hypo and hyperthyroidism) disrupts melanin production Autoimmune conditions Smoking is significantly linked to premature greying What’s potentially reversible: Greying from copper or B12 deficiency, thyroid issues, or severe stress can sometimes partially reverse with treatment but once the melanocyte stem cells are depleted, it’s generally permanent.
