Tretinoin is one of the most powerful retinoids for treating acne, sun damage, or fine lines - among many other skin concerns

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This vitamin is essential for: Synthesis of neurotransmitters like serotonin and dopamine Maintenance of nerve cell integrity Formation of the protective myelin sheath around nerves Reduction of homocysteine (elevated levels are associated with cognitive decline) Studies have linked adequate B12 levels to better cognitive performance, particularly in memory, reasoning, and processing speed