Longevity Science

Explore NMN, NAD+, resveratrol and other healthy-aging ingredients. Compare biological roles, human research and the limits of supplement claims.

Browse guides by topic · All supplement guides

Separate morning and evening supplement routines
Do Longevity Supplements Work Better Together or Separate?
Some pairings have real synergy (NMN + Resveratrol, D3 + K2). Multi-ingredient blends with 15+ ingredients are usually marketing. Here's what actually works together vs. what's just packaging. Read more...
Active older couple walking together on a wooded trail
How Longevity Supplements Support Healthy Aging (And What They Can't Do)
No dietary supplement can be marketed with disease-prevention claims — not because supplements are ineffective, but because of how FDA rules distinguish supplements from drugs. Here's what supplements can and... Read more...
Mature hands arranging vitamins beside nutrient-rich foods
Nutrients and Aging: What Can Change and What to Review
Learn how diet, absorption, medications and other factors can affect nutrient status with age, and why a confirmed need matters more than age alone. Read more...
Research journal, magnifying glass, capsules and botanical ingredients
How to Compare Longevity Supplement Research
Compare supplement research by study design, measured outcomes and relevance to people. Learn why promising biomarkers do not establish a longer lifespan. Read more...
Minimal health-tech desk with smartwatch, supplements and journal
Biohacking Supplements: How to Evaluate a Public Routine
Explore supplements discussed in biohacking, including NMN, CoQ10 and magnesium. Compare research quality and label details before following a routine. Read more...
Red grapes beside resveratrol supplement capsules on a stone surface
Resveratrol: Product Strength, Label Meaning and Cautions
Understand resveratrol complex amounts, trans-resveratrol standardization and research limits, with practical label checks and cautions before use. Read more...
Balanced capsules representing the difference between NAD plus and NMN.
NAD+ vs NMN: What's the Difference, and Which Should You Take?
Understand the difference between NAD+ and its precursor NMN, compare label ingredients and learn why biological roles do not guarantee supplement results. Read more...
Healthy aging couple representing a longevity supplement ingredient guide.
Longevity Supplement Ingredient Guide: Labels, Timing and Cautions
Compare NMN, NAD+, CoQ10, resveratrol and other supplement ingredients. Review label amounts, suggested use, interactions and research limitations. Read more...
DNA and cellular imagery explaining NMN as a longevity supplement.
What Is NMN? A Cautious, Label-Centered Explanation
Understand how NMN relates to NAD+, what early human studies can tell us, and which serving, ingredient and safety details to check on the label. Read more...