Diet, pollution and age all influence your levels
Taurine , an amino acid abundant in the body and in energy drinks, surged after a 2023 mouse study tied it to longer lifespan, but a 2025 analysis found it does not reliably decline with age in people and a meta-analysis found no cognitive benefit
Clinical studies have demonstrated that topical niacinamide improves the appearance of aging facial skin, including reductions in fine lines, wrinkles, yellowing, red blotchiness, and hyperpigmented spots, while also enhancing barrier function
However, few of the biomarkers have been replicated (14)
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