This occurred even though only 12.4% in the analysis had a B12 insufficiency (meaning they were at the borderline for a deficiency), and only 3% had a B12 deficiency
Vitamin B12 is a nutrient that helps to keep your nerves and blood cells healthy
Here are the most common mistakes users make and how to avoid them

Reported benefits (per available research): Studied for restoring more youthful pulsatile GH and IGF-1 secretion in older adults, based on a small 1997 randomized, placebo-controlled human trial of a closely related GHRH(1-29) analog published in the Journal of Clinical Endocrinology & Metabolism May support gains in lean body mass in men specifically: that same 16-week trial found a statistically significant increase in lean body mass in men but not in women, alongside a significant increase in skin thickness (a marker of dermal collagen) in both sexes Proposed to support broader recovery and body-composition goals tied to growth-hormone-axis activity, though sermorelin-specific modern adult trial data remains thin, and much of the anti-aging and muscle-building framing used in commercial marketing outpaces the current clinical evidence base Known risks and side effects: Injection-site reactions (pain, swelling, or redness) are the most commonly reported adverse event associated with sermorelin therapy in manufacturer drug-labeling data Headache, flushing, dizziness, difficulty swallowing, hyperactivity, drowsiness, and hives have also been reported less commonly per that same labeling data

Its really important to understand, do they have enough B12 and it cant get into the cell to be used
Skin Vitality Help support healthy hair, skin, nails, and metabolism