Severe overdoses can even result in toxicity
doi:10.3390/ph18020185
Many of its deficiency signs match those of the menopausal transition so its important to determine if your symptoms are deficiency-related or not

Energy+ Boosts Energy Levels Improves Hydration Fights Fatigue & Brain Fog Great for Active Lifestyles Key Ingredients: Vitamin B12, Amino Acids Immunity Strengthens Immune System Boosts Vitamin Levels Great for Traveling Cold & Flu Season Defense Key Ingredients: Vitamin C, Vitamin B12, Magnesium Brain Improves Brain Health Boosts Vitamin Levels Sharpens Mental Performance Great for Memory Care Key Ingredients: Phosphatidyl Choline Glow Up Boosts Collagen Production Revitalizes & Rejuvenates Skin Improves Deep Hydration Supports Hair, Skin & Nails Key Ingredients: Vitamin C, Vitamin B, Amino Acids, Magnesium Weight Loss Helps Burn Fat Boosts Energy Levels Supports Metabolic Function Improves Hydration Key Ingredients: Vitamin B12, L-Carnitine, Vitamin B Detox Helps Cleanse Your Organs Detoxifies the Liver & Kidneys Hydrates & Revitalizes Pairs Well with Glutathione Key Ingredients: EDTAs, Glutathione (add-on) Relive Health Brentwood also offers IV vitamin therapy that includes NAD+ and Methylene Blue

3: Matek D, Matek I, Japjec M, Matek M, Prenc J, Staresinic B, Staresinic E, Prtoric A, Sikiric S, Beketic Oreskovic L, Oreskovic I, Strbe S, Kordic M, Tvrdeic A, Seiwerth S, Sikiric P, Boban Blagaic A, Skrtic A, Bojanic I, Dobric I, Staresinic M
Most side effects lessen over time as your body adapts