Evidence-Based Supplement & Herb Guides

Grape Seed Extract for Healthy Aging: OPCs and Vascular Health

Grape seed extract provides OPC polyphenols that may modestly support blood pressure and vascular function. Learn evidence-based dosing, benefits, safety, and how to use it wisely for healthy aging.

Grape seed extract is a concentrated source of proanthocyanidins, a family of polyphenols also found in berries, cocoa, apples, tea, and red wine. In...

Hesperidin and Diosmin for Vascular Aging: Endothelial and Metabolic Support

Learn how hesperidin and diosmin support vascular aging, endothelial function, venous symptoms, metabolic markers, dosing, safety, and practical tracking.

Hesperidin and diosmin are citrus-derived flavonoids best known for supporting vein comfort, leg swelling, and microcirculation. They also draw interest in healthy aging because...

HMB for Aging: Muscle Preservation and Strength in Older Adults

Learn how HMB supports muscle preservation in aging, who benefits most, safe dosing, protein and strength-training pairings, and realistic results.

HMB is a muscle-focused supplement used to support strength, function, and lean tissue during aging. It is not a shortcut to new muscle, and...

Hyaluronic Acid for Skin Aging: Do Oral Supplements Work

Oral hyaluronic acid supplements may modestly improve skin hydration, elasticity, and fine lines. Learn doses, timing, safety, and how they compare with topical HA and fillers.

Hyaluronic acid supplements have moved from joint-health shelves into skin-aging routines because the idea is appealing: take a capsule, support skin moisture from within,...

Hydroxytyrosol for Longevity: Olive Polyphenols and Mediterranean Aging

Hydroxytyrosol supports longevity best through high-quality extra-virgin olive oil, Mediterranean meals, and vascular health habits, with supplements used cautiously when needed.

Hydroxytyrosol is one of the main protective polyphenols in olives, extra-virgin olive oil, and olive leaf extracts. It helps explain why traditional Mediterranean eating...

Inositol for Healthy Aging: Insulin Sensitivity and Metabolic Support

Learn how inositol supports healthy aging through insulin sensitivity, glucose control, metabolic syndrome markers, dosing, safety, and practical tracking.

Inositol is best understood as a metabolic support compound, not a stand-alone longevity supplement. The body makes it, foods provide it, and cells use...

Lutein and Zeaxanthin for Healthy Aging: Eye and Brain Support

Lutein and zeaxanthin support healthy aging through macular pigment, visual performance, and possible brain benefits. Learn food sources, doses, safety, and who benefits most.

Lutein and zeaxanthin are yellow-orange plant pigments that collect in the retina and brain, where they help protect tissue exposed to light, oxygen, and...

Magnesium for Longevity: Sleep, Recovery, and Metabolic Health

Magnesium supports healthy aging through sleep, recovery, glucose control, blood pressure, and muscle function. Learn food sources, forms, doses, timing, and safety.

Magnesium supports the quiet systems that shape healthy aging: sleep quality, muscle function, glucose control, blood pressure regulation, bone strength, and energy production. It...

Melatonin for Longevity: Sleep and Circadian Health in Aging

Melatonin for longevity works best as a targeted sleep-timing tool. Learn evidence-based benefits, dosing, timing, safety risks, and circadian habits for healthy aging.

Melatonin is useful for healthy aging when it solves a specific sleep-timing problem, not when it is treated as a general anti-aging pill. Its...

Microdose Lithium Orotate and Longevity: Evidence, Controversies, and Safety

Microdose lithium orotate has intriguing brain-aging and longevity signals, but human proof remains limited. Learn the evidence, dose issues, controversies, and safety concerns.

Microdose lithium orotate sits in an unusual place between nutrition, psychiatry, brain aging, and supplement marketing. Lithium is a naturally occurring trace element found...

NAC for Longevity: Oxidative Stress, Detox, and Resilience

Learn how NAC supports glutathione, oxidative stress control, detox pathways, respiratory resilience, dosing, safety, and smart longevity use.

N-acetylcysteine, usually called NAC, is a supplemental form of the amino acid cysteine. Its main longevity interest comes from a simple job with wide...

NAD Plus in Aging: NR, NMN, Niacin, and Niacinamide Explained

Clear guide to NAD+ in aging, comparing NR, NMN, niacin, and niacinamide for evidence, dosing, safety, side effects, and practical healthy-aging use.

NAD+ is a vitamin-B3-derived coenzyme that helps cells turn food into energy, repair damage, regulate stress responses, and keep metabolism running. Interest in NAD+...

NMN and NR for Longevity: Evidence, Use Cases, and Regulatory Status

Compare NMN and NR for longevity, including NAD+ biology, human evidence, practical use cases, dose ranges, safety concerns, product quality, and 2026 regulatory status.

NMN and NR are popular NAD+ precursors sold for healthy aging, energy metabolism, and cellular repair. They raise interest because NAD+ supports enzymes involved...

Omega 3s for Healthy Aging: EPA, DHA, and the Omega 3 Index

Learn how EPA, DHA, food sources, supplements, safety issues, and the Omega 3 Index fit into a practical healthy aging plan.

Omega 3s matter in healthy aging because they become part of cell membranes, influence inflammatory signaling, support triglyceride metabolism, and help maintain the structure...

Phosphatidylserine for Cognitive Aging: Memory and Stress Regulation

Phosphatidylserine may support memory and stress regulation in cognitive aging. Learn the evidence, dose range, safety points, and how to test whether it helps.

Phosphatidylserine is a fat-like molecule found in every cell membrane, with especially high levels in brain tissue. As a supplement, it attracts attention because...

PQQ for Longevity: Mitochondrial Biogenesis, Promise, and Limits

PQQ for longevity shows promise for mitochondrial biogenesis, cognition, and energy support, but human evidence remains limited. Learn realistic benefits, dosing, safety, and when to skip it.

PQQ, short for pyrroloquinoline quinone, has earned attention because it touches a process central to aging biology: mitochondrial health. Mitochondria turn food into usable...

Prebiotics and Postbiotics for Longevity: Inulin, GOS, and Butyrate

Learn how inulin, GOS, and butyrate fit into longevity nutrition, including benefits, dosing ranges, side effects, food sources, and smart supplement use.

Gut health affects more than digestion. A resilient gut helps regulate bowel rhythm, supports the intestinal barrier, shapes immune signaling, and produces metabolites that...

Probiotics for Healthy Aging: Strains, Functions, and Evidence

Learn how probiotics support healthy aging, which strains have the best evidence, how to choose a quality supplement, and when probiotic use needs medical caution.

Probiotics are live microbes used for a specific health effect, not a general “gut reset.” In healthy aging, their strongest roles relate to digestion,...

Pterostilbene for Healthy Aging: How It Compares to Resveratrol

Pterostilbene is a better-absorbed cousin of resveratrol, but human evidence remains limited. Learn benefits, risks, dosing, LDL concerns, and how to compare both supplements for healthy aging.

Pterostilbene is a plant polyphenol closely related to resveratrol, the better-known compound found in grapes, red wine, peanuts, and berries. Both belong to a...

Quercetin for Longevity: Senotherapeutic Mechanisms and Safety

Quercetin for longevity has early senotherapeutic evidence, including senolytic and senomorphic mechanisms, but supplement use needs careful dosing and safety review.

Quercetin is a plant flavonol found in onions, capers, apples, berries, tea, and many herbs. In longevity science, it draws attention for a specific...