Evidence-Based Supplement & Herb Guides

Carnitine for Healthy Aging: L Carnitine Tartrate vs Acetyl L Carnitine

Compare L-carnitine tartrate and acetyl-L-carnitine for healthy aging, including muscle recovery, cognition, dosing ranges, safety, and TMAO concerns.

Carnitine helps move long-chain fatty acids into mitochondria, where cells turn them into usable energy. That role makes it attractive for healthy aging, especially...

Choline and Citicoline for Cognitive Longevity: What to Know

Choline supports brain membranes, acetylcholine, and methylation, while citicoline offers a targeted but still unproven option for memory support. Learn food sources, dosing, evidence, and safety.

Choline is an essential nutrient your brain uses to build cell membranes, make acetylcholine, and support methylation, a process tied to homocysteine balance. Citicoline...

Citrus Bergamot for Longevity: Lipids and Cardiometabolic Aging

Citrus bergamot may support healthier LDL cholesterol, triglycerides, and cardiometabolic aging when used with lab tracking, quality products, and risk-based care.

Citrus bergamot is best understood as a lipid-support supplement with a cardiometabolic angle, not as a general “anti-aging” shortcut. The extract comes from Citrus...

Collagen Peptides for Aging: Skin Elasticity and Joint Support

Learn how collagen peptides support aging skin and joints, including realistic benefits, dosing ranges, timing, safety, product quality, and how to track results.

Collagen peptides are small protein fragments made from collagen, the main structural protein in skin, cartilage, tendons, ligaments, and bone. As adults age, collagen...

CoQ10 for Longevity: Ubiquinol and Ubiquinone and Cellular Energy

CoQ10 supports mitochondrial energy and antioxidant function, but it is not proven to extend lifespan. Learn how ubiquinol and ubiquinone compare, who may benefit, how to dose CoQ10, and when safety concerns matter.

Coenzyme Q10, usually shortened to CoQ10, sits at the center of cellular energy production. Your body makes it, your mitochondria use it, and every...

Creatine for Healthy Aging: Muscle, Brain, and Safety

Creatine for healthy aging supports strength, muscle function, and possibly brain energy; learn dosing, safety, kidney lab considerations, and who benefits most.

Creatine is one of the few supplements with a strong reason to belong in a healthy aging discussion. It supports fast energy recycling in...

Curcumin for Healthy Aging: Inflammation and Bioavailability

Curcumin may support healthy aging by modulating inflammation, but bioavailability, dose, product quality, and safety risks determine whether it makes sense.

Curcumin is the bright yellow polyphenol in turmeric that draws attention because it touches two aging-related themes: chronic low-grade inflammation and oxidative stress. In...

DHEA Supplementation in Aging: Endocrine Context, Benefits, and Cautions

DHEA supplementation in aging may raise DHEA-S, testosterone, and estradiol, but anti-aging benefits remain uncertain. Learn the evidence, dosing, testing, side effects, and safety cautions.

DHEA is a hormone precursor made mostly by the adrenal glands. It rises in childhood, peaks in early adulthood, and falls steadily with age....

EGCG for Healthy Aging: Green Tea Extract and Cardiometabolic Health

EGCG from green tea extract may modestly support lipids, glucose, blood pressure, and body composition, but dose and liver safety matter. Learn how to use it wisely.

EGCG is the best-known catechin in green tea and one reason green tea extract appears in many healthy aging supplements. It sits in an...

Fisetin for Healthy Aging: A Practical Guide to Senolytic Use

Fisetin is a promising but investigational senolytic supplement for healthy aging. Learn how it may work, what human evidence shows, dosing models, safety concerns, and how to monitor results.

Fisetin is a plant flavonol found in small amounts in strawberries, apples, persimmons, onions, and cucumbers. Interest in fisetin has grown because lab and...

Ginseng for Healthy Aging: Energy, Immunity, and Evidence

Ginseng may support healthy aging through modest effects on fatigue, immunity, and metabolic signals. Learn the evidence, dosing ranges, safety issues, and who should avoid it.

Ginseng has a long reputation as a tonic for energy, stress resilience, and immune defense, but its real value for healthy aging is more...

Glucosamine and Longevity: What Observational Studies Suggest

Glucosamine has been linked with lower mortality and age-related disease risk in observational studies. Learn what the evidence suggests, where it falls short, and how to use it safely.

Glucosamine is best known as a joint supplement, but several large population studies have linked regular use with lower rates of death and some...

Glycine for Longevity: Sleep, Collagen, and Metabolic Aging

Learn how glycine supports sleep quality, collagen structure, glutathione production, and metabolic aging, with practical dosing, food sources, safety cautions, and tracking tips.

Glycine is a small amino acid with a surprisingly large role in healthy aging. The body uses it to build collagen, make glutathione, support...

GlyNAC for Aging: What Human Studies Suggest for Glutathione and Mitochondria

GlyNAC for aging may support glutathione and mitochondrial function, but human evidence is still early. Learn what studies show, who might benefit, dosing cautions, safety issues, and how to track results.

GlyNAC is a supplement pairing glycine with N-acetylcysteine, two building blocks the body uses to make glutathione. Interest in GlyNAC grew because several human...

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...