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Antioxidants

ROS quenching and redox support.

Ranked by evidence strength across reported benefits.

Vitamin#1· strong

Vitamin D3

Steroid hormone precursor regulating ~5% of the human genome — bone, immune, and hormonal health.

Compound#2· strong

Melatonin

Pineal hormone that signals biological night — most effective for circadian-rhythm shifts.

Compound#3· strong

Coffee

Caffeine + polyphenol matrix with strong evidence for mortality and T2D reduction.

Amino Acid#4· strong

N-Acetyl Cysteine (NAC)

Glutathione precursor with mucolytic, hepatoprotective, and psychiatric uses.

Vitamin#5· strong

Vitamin A (Retinol)

Fat-soluble vitamin essential for vision, immune function, and epithelial integrity.

Vitamin#6· strong

Vitamin B3 (Niacin)

NAD+ precursor; nicotinic acid form lowers LDL and raises HDL.

Vitamin#7· strong

Vitamin C

Water-soluble antioxidant, collagen cofactor, and immune supporter.

Herb#8· strong

Milk Thistle

Hepatoprotective herb with antioxidant and anti-fibrotic effects.

Herb#9· strong

Garlic

Culinary bulb with cardiovascular benefits primarily via allicin and aged-garlic compounds.

Compound#10· strong

Lactobacillus Probiotics

Lactic acid bacteria supporting gut barrier, immunity, and women's urogenital health.

Compound#11· strong

Beta-Glucan

Polysaccharide that primes innate immune cells (yeast) or lowers cholesterol (oat).

Amino Acid#12· strong

Glycine

Inhibitory amino acid that improves sleep quality, glycemic control, and collagen synthesis.

Vitamin#13· strong

Vitamin D3 (Cholecalciferol)

Preferred form for raising 25(OH)D — the active form your skin makes from sun.

Herb#14· strong

Aged Garlic Extract (Kyolic)

Odorless aged garlic with S-allyl-cysteine for vascular health.

Compound#15· strong

Nicotinamide Riboside (NR)

NAD+ precursor with bioavailability and longevity research interest.

Compound#16· strong

NMN

NAD+ precursor similar to NR; bioavailability route debated.

Herb#17· strong

Milk Thistle (Liver)

Silymarin — most-studied liver herb, used for ALD, NAFLD, and toxin protection.

Vitamin#18· strong

Nicotinamide Riboside (NR)

NAD+ precursor that bypasses the flush — studied for cellular aging.

Mushroom#19· strong

Turkey Tail

Beta-glucan-rich mushroom used as immune adjunct in cancer (PSK approved in Japan).

Compound#20· strong

Saccharomyces Boulardii

Beneficial yeast used to prevent and treat several types of diarrhea.

Compound#21· strong

Alpha-Lipoic Acid

Mitochondrial antioxidant studied for diabetic neuropathy and insulin sensitivity.

Herb#22· strong

Andrographis

Bitter herb with strong RCT evidence for URI symptom reduction.

Compound#23· strong

Lutein + Zeaxanthin

Macular xanthophylls — protect retina from blue light and oxidative damage.

Mineral#24· strong

Zinc Gluconate

Most common over-the-counter zinc form — affordable, moderate bioavailability.

Compound#25· strong

Idebenone

Synthetic CoQ10 analog with better water solubility; used in LHON.

Herb#26· strong

Andrographis (KalmCold)

Standardized andrographolide for acute upper respiratory infections.

Herb#27· strong

Pelargonium sidoides (Umckaloabo)

South African geranium root for acute bronchitis and URIs.

Vitamin#28· strong

Vitamin D3 (Maintenance)

Daily maintenance dose for non-deficient adults.

Vitamin#29· strong

Vitamin D3 (Repletion)

Repletion dose for deficiency under medical supervision.

Mineral#30· strong

Selenium-Enriched Yeast

Yeast-bound selenomethionine — form used in major chemoprevention trials.

Compound#31· strong

ALA (R-isomer)

Natural enantiomer of α-lipoic acid with better bioavailability.

Mineral#32· moderate

Zinc

Cofactor for ~300 enzymes — critical for testosterone, immune function, and DNA synthesis.

Vitamin#33· moderate

Vitamin K2 (MK-7)

Activates the proteins that direct calcium into bone — not arteries.

Compound#34· moderate

Coenzyme Q10

Mitochondrial electron carrier and lipid-soluble antioxidant.

Amino Acid#35· moderate

Glycine

Inhibitory neurotransmitter that improves sleep quality and supports collagen synthesis.

Vitamin#36· moderate

Vitamin E

Primary lipid-phase antioxidant protecting membrane PUFAs.

Amino Acid#37· moderate

L-Glutamine

Most abundant amino acid; primary fuel for enterocytes and immune cells.

Herb#38· moderate

American Ginseng

Cooler adaptogen with stronger evidence for blood sugar and cold-flu prevention.

Herb#39· moderate

Pomegranate

Polyphenol-rich fruit converted by gut microbes to urolithin A (mitochondrial benefit).

Herb#40· moderate

Green Tea (EGCG)

Polyphenol-rich tea; EGCG modestly boosts metabolism and supports cardiovascular health.

Compound#41· moderate

DHEA

Adrenal androgen precursor declining with age; used for adrenal insufficiency and aging.

Herb#42· moderate

Licorice Root

Adrenal-supporting herb; chronic high-dose causes pseudo-aldosteronism.

Compound#43· moderate

Astaxanthin

Algal carotenoid that is the strongest membrane antioxidant; UV and eye protection.

Compound#44· moderate

Bovine Colostrum

First milk rich in IgG, lactoferrin, and growth factors for immune and gut support.

Compound#45· moderate

Lactoferrin

Iron-binding protein with antimicrobial and immunomodulating effects.

Compound#46· moderate

Alpha-Lipoic Acid (ALA)

Universal antioxidant that's both water and fat soluble — supports glycemic control and nerve health.

Compound#47· moderate

Tart Cherry (Montmorency)

Natural melatonin and anthocyanin source — improves sleep and reduces DOMS.

Compound#48· moderate

Astaxanthin

Algae-derived xanthophyll — most potent natural antioxidant; UV/eye/skin support.

Compound#49· moderate

Ubiquinol (CoQ10)

Reduced active form of CoQ10 — preferred in adults over 40 and those with statin-induced depletion.

Vitamin#50· moderate

Vitamin K2 (MK-7)

Long-half-life K2 — directs calcium to bone and away from arteries.

Compound#51· moderate

Astaxanthin (Eye dose)

Carotenoid that crosses BBB and accumulates in ciliary body.

Amino Acid#52· moderate

Taurine

Conditionally essential amino acid involved in bile salt conjugation, osmoregulation, and cardiac function.

Compound#53· moderate

Glutathione

Master intracellular antioxidant; oral bioavailability depends on form.

Compound#54· moderate

TUDCA

Bile acid with hepatoprotective effects and ER stress reduction.

Herb#55· moderate

Ginkgo Biloba

Vasoactive herb studied for cognition in the elderly and tinnitus.

Compound#56· moderate

Shilajit

Himalayan mineral exudate rich in fulvic acid, studied for testosterone and fatigue.

Mushroom#57· moderate

Reishi

Adaptogenic mushroom used for immune balance, sleep, and stress.

Compound#58· moderate

Quercetin

Flavonoid with antihistamine and senolytic effects; pairs with bromelain or vitamin C.

Compound#59· moderate

TUDCA (Tauroursodeoxycholic Acid)

Conjugated bile acid — hepatoprotective and ER-stress-reducing.

Compound#60· moderate

Resveratrol

Polyphenol from grapes — sirtuin activator with mixed human evidence.

Amino Acid#61· moderate

Taurine

Conditionally essential amino acid with cardiovascular, metabolic, and longevity effects.

Compound#62· moderate

Spirulina

Blue-green algae — protein-rich with phycocyanin antioxidant and immune effects.

Compound#63· moderate

Fisetin

Flavonoid senolytic — clears senescent cells in animal models.

Compound#64· moderate

Sulforaphane (Broccoli Sprout)

Most potent natural Nrf2 activator — upregulates phase II detox enzymes.

Mineral#65· moderate

Magnesium L-Threonate

Magnesium bound to L-threonic acid — the only form shown to meaningfully raise brain magnesium.

Compound#66· moderate

NMN (Nicotinamide Mononucleotide)

Direct NAD+ precursor — popular longevity supplement with growing human data.

Amino Acid#67· moderate

Taurine (High-Dose)

Conditionally essential amino acid with longevity and metabolic effects.

Mineral#68· moderate

Selenium

Trace mineral essential for glutathione peroxidase and thyroid hormone activation.

Mushroom#69· moderate

Cordyceps

Medicinal fungus studied for aerobic capacity and immune modulation.

Mushroom#70· moderate

Shiitake (Lentinan)

Culinary mushroom whose beta-glucan lentinan is an approved injectable immune adjunct.

Herb#71· moderate

Olive Leaf Extract

Mediterranean herb with antihypertensive and immune effects.

Compound#72· moderate

Bifidobacterium Probiotics

Dominant probiotic genus in the colon; supports immune and gut barrier.

Fatty Acid#73· moderate

Krill Oil

Phospholipid-bound omega-3 with astaxanthin; better bioavailability than fish oil per gram.

Compound#74· moderate

Resveratrol

Polyphenol activating sirtuins; bioavailability and clinical effects modest.

Herb#75· moderate

Elderberry

Anthocyanin-rich berry used to shorten influenza and URI symptoms.

Herb#76· moderate

Echinacea

Native American herb used for URI prevention/duration reduction.

Herb#77· moderate

Cranberry

Berry with PACs that inhibit E. coli adhesion to urothelium for UTI prevention.

Compound#78· moderate

Urolithin A

Gut-microbial metabolite of ellagitannins — induces mitophagy.

Herb#79· moderate

Aged Garlic Extract (Kyolic)

Standardized aged garlic — modest BP and cholesterol benefits.

Herb#80· moderate

Hibiscus Tea

Anthocyanin-rich tea with ACE-inhibitor-like blood pressure effects.

Herb#81· moderate

Elderberry (Sambucus)

Anthocyanin-rich berry — modest evidence for shortening flu and cold duration.

Vitamin#82· moderate

Vitamin C (Immune Use)

High-dose vit C at symptom onset — modestly shortens cold duration.

Amino Acid#83· moderate

L-Carnosine

Histidine dipeptide — anti-glycation and pH buffering.

Amino Acid#84· moderate

GlyNAC (Glycine + NAC)

Glycine + NAC combo — restores glutathione in older adults and improves multiple aging markers.

Amino Acid#85· moderate

NAC (Lung Support)

Mucolytic and antioxidant — used for COPD exacerbations and idiopathic pulmonary fibrosis.

Mineral#86· moderate

Zinc Acetate

Lozenge form shown to shorten cold duration when used at first symptoms.

Herb#87· moderate

Curcumin Phytosome (Meriva)

Phosphatidylcholine-complexed curcumin — ~29× higher bioavailability than standard extract.

Mineral#88· moderate

Selenomethionine

Organic selenium form — preferred for thyroid (Hashimoto's) and antioxidant support.

Mushroom#89· moderate

Agaricus blazei

Brazilian mushroom rich in β-glucans for immune modulation.

Mushroom#90· moderate

Maitake D-Fraction

Standardized β-glucan from Grifola frondosa for immune support.

Compound#91· moderate

Spirulina (Extra Profile)

Cyanobacterium with phycocyanin for allergy and immunity.

Compound#92· moderate

Pterostilbene (Extra)

Methylated resveratrol analog with superior bioavailability.

Vitamin#93· moderate

Tocotrienols (Skin/Aging)

Vitamin E isoforms with 40–60× higher antioxidant power than tocopherols.

Compound#94· moderate

Trans-Resveratrol (Pure)

Purified active isomer of resveratrol.

Compound#95· moderate

Spermidine (Wheat Germ)

Polyamine that induces autophagy and may extend lifespan.

Compound#96· moderate

Urolithin A (Mitopure)

Gut-derived ellagitannin metabolite that induces mitophagy.

Mineral#97· moderate

Zinc Bisglycinate (High-Bio)

Chelated zinc with superior absorption and tolerability.

Vitamin#98· moderate

Mixed Tocopherols

Full-spectrum natural vitamin E avoiding α-only supplementation pitfalls.

Herb#99· moderate

Butterbur

Petasites hybridus extract for migraine prophylaxis and allergic rhinitis.

Herb#100· moderate

Cat's Claw

Uncaria tomentosa for joint pain and immunity.

Mushroom#101· moderate

Agaricus Blazei

Brazilian sun mushroom for immune support.

Mushroom#102· moderate

Phellinus Linteus

Meshima mushroom with hispolon for immune support.

Peptide#103· moderate

Epitalon

Tetrapeptide that activates telomerase.

Peptide#104· moderate

MOTS-c

Mitochondrial-derived peptide for metabolic regulation.

Peptide#105· moderate

SS-31 (Elamipretide)

Mitochondrial-targeted peptide for cardiolipin protection.

Compound#106· moderate

Glycine + NAC (GlyNAC)

Glutathione-boosting combination for aging.

Compound#107· moderate

Rapamycin

mTOR inhibitor studied for longevity (Rx only).

Compound#108· moderate

Metformin (Longevity Use)

Biguanide diabetes drug studied for healthspan.

Compound#109· moderate

PEA (Palmitoylethanolamide)

Endogenous fatty acid amide for pain and inflammation.

Compound#110· moderate

MitoQ

Mitochondria-targeted ubiquinone (CoQ10 analog).

Compound#111· moderate

PQQ (Pyrroloquinoline Quinone)

Redox cofactor for mitochondrial biogenesis.

Compound#112· moderate

C60 in Olive Oil

Buckminsterfullerene antioxidant.

Amino Acid#113· moderate

Ergothioneine (Mushroom-Derived)

Natural ergothioneine from oyster mushrooms.

Compound#114· moderate

Hydroxytyrosol

Olive polyphenol for cardiovascular health.

Amino Acid#115· moderate

L-Lysine

Essential amino acid for collagen and HSV prevention.

Mineral#116· moderate

Selenium (Selenomethionine)

Antioxidant trace element for thyroid.

Compound#117· moderate

Quercetin Phytosome

Lecithin-complexed quercetin.

Compound#118· moderate

Quercetin + Bromelain

Anti-inflammatory pair for allergies.

Herb#119· moderate

Stinging Nettle Leaf

Urtica dioica leaf for allergies and joint pain.

Compound#120· moderate

Isoquercetin

Highly bioavailable quercetin glycoside.

Compound#121· moderate

Luteolin

Flavone with anti-inflammatory effects.

Compound#122· moderate

Baicalin

Scutellaria baicalensis flavonoid.

Herb#123· moderate

Pelargonium Sidoides

South African geranium for bronchitis.

Herb#124· moderate

EPs 7630

Standardized Pelargonium extract.

Herb#125· moderate

Echinacea Purpurea

Coneflower for upper respiratory infections.

Herb#126· moderate

Echinacea Angustifolia

Narrow-leaf coneflower for immune support.

Mushroom#127· moderate

Lion's Mane Fruiting Body

Hericinones-rich beta-glucan source.

Mushroom#128· moderate

Agarikon (Fomitopsis officinalis)

Antiviral polypore mushroom.

Mushroom#129· moderate

Poria Cocos

TCM mushroom for sleep and immunity.

Mushroom#130· moderate

Oyster Mushroom

Pleurotus ostreatus with ergothioneine.

Herb#131· moderate

Butterbur Ze 339

PA-free butterbur for allergic rhinitis.

Herb#132· moderate

Marshmallow Root

Althaea officinalis mucilage for cough.

Compound#133· moderate

Trans-Resveratrol

Active form of resveratrol.

Compound#134· moderate

Micronized Resveratrol

Improved bioavailability resveratrol.

Compound#135· moderate

Punicalagin

Major pomegranate ellagitannin.

Compound#136· moderate

Ellagic Acid

Ellagitannin hydrolysis product.

Herb#137· moderate

Cranberry Extract

Vaccinium macrocarpon for UTI prevention.

Herb#138· moderate

Olive Leaf (Standardized Oleuropein)

High-oleuropein extract.

Fatty Acid#139· moderate

Lauric Acid

Coconut MCFA with antimicrobial activity.

Fatty Acid#140· moderate

Black Seed Oil (Nigella sativa)

Thymoquinone for immune and metabolic health.

Compound#141· moderate

Thymoquinone

Active black seed compound.

Compound#142· moderate

Propolis

Bee glue with caffeic acid phenethyl ester.

Compound#143· moderate

Bee Pollen

Pollen collected by bees.

Compound#144· moderate

Manuka Honey

Leptospermum honey with MGO.

Compound#145· moderate

Bromelain

Pineapple proteolytic enzyme.

Herb#146· moderate

Ginger Extract (Zingiber)

Standardized ginger for nausea and inflammation.

Herb#147· moderate

Galangal (Alpinia)

Thai ginger relative for inflammation.

Herb#148· moderate

Holy Basil (Tulsi)

Ocimum sanctum adaptogen.

Compound#149· moderate

Holy Basil Eugenol

Active constituent of tulsi.

Compound#150· moderate

Honokiol

Active magnolia compound.

Vitamin#151· moderate

Liposomal Vitamin C

Phospholipid-encapsulated vitamin C.

Vitamin#152· moderate

Ascorbyl Palmitate

Fat-soluble vitamin C ester.

Vitamin#153· moderate

Sodium Ascorbate

Buffered vitamin C form.

Compound#154· moderate

Bovine Colostrum

First milk with growth factors.

Compound#155· moderate

Chlorella

Green algae with chlorophyll.

Herb#156· moderate

Amla (Indian Gooseberry)

Phyllanthus emblica vitamin C source.

Fatty Acid#157· moderate

Black Cumin Seed Oil

Nigella sativa oil.

Compound#158· moderate

Oleocanthal

EVOO ibuprofen-like compound.

Mushroom#159· limited

Lion's Mane

Edible medicinal mushroom that upregulates NGF and BDNF — studied for nerve growth and cognition.

Herb#160· limited

Eleuthero

Adaptogen used to support stamina, immune function, and stress resilience.

Compound#161· limited

Fisetin

Flavonoid studied as senolytic — clearing senescent cells in animal models.

Compound#162· limited

Quercetin

Flavonoid with antihistamine, anti-viral, and senolytic activity.

Vitamin#163· limited

Tocotrienols (Vitamin E)

Unsaturated vitamin E family — superior antioxidant capacity vs alpha-tocopherol.

Mineral#164· limited

Lithium Orotate (low-dose)

Low-dose lithium salt studied for mood stability and neuroprotection.

Mushroom#165· limited

Chaga

Birch-tree mushroom rich in melanin, betulin, and antioxidants.

Compound#166· limited

PQQ

Cofactor stimulating mitochondrial biogenesis (PGC-1α).

Compound#167· limited

Pterostilbene

Bioavailable resveratrol analog with longer half-life.

Compound#168· limited

Spermidine

Polyamine inducing autophagy; epidemiologic association with longevity.

Compound#169· limited

Monolaurin

Coconut-derived monoglyceride with antimicrobial properties against enveloped viruses.

Amino Acid#170· limited

ALCAR + ALA (Mitochondrial Protection)

Mitochondrial antioxidant stack — popularized as harm-reduction adjunct for MDMA neuroprotection.

Compound#171· limited

EGCG (Green Tea Catechin)

Potent CYP/COMT-modulating antioxidant — popularized in MDMA harm-reduction stacks.

Vitamin#172· limited

Vitamin C (Harm-Reduction Antioxidant)

Water-soluble antioxidant — quenches dopamine quinone and other reactive metabolites.

Compound#173· limited

Pterostilbene

Methylated analog of resveratrol — better bioavailability and longer half-life.

Compound#174· limited

Spermidine

Polyamine that induces autophagy — emerging longevity supplement.

Compound#175· limited

Ergothioneine

Unique antioxidant from mushrooms with its own transporter — accumulates in oxidative-stress tissues.

Mineral#176· limited

Zinc Picolinate

Zinc chelated to picolinic acid — one of the most bioavailable oral forms.

Mineral#177· limited

Zinc Bisglycinate

Glycine-chelated zinc — high absorption and very gentle on the stomach.

Compound#178· limited

Liposomal Glutathione

Phospholipid-encapsulated GSH — protects from gut breakdown for systemic delivery.

Compound#179· limited

S-Acetyl Glutathione

Acetylated GSH — stable through the gut and converted intracellularly to glutathione.

Nootropic#180· limited

9-Me-BC

β-carboline alkaloid that upregulates dopamine neurons in animal models.

Nootropic#181· limited

Centrophenoxine

Cholinergic precursor that reduces lipofuscin accumulation in neurons.

Herb#182· limited

Chinese Skullcap

Flavonoid-rich root used for anxiety and inflammation.

Peptide#183· limited

Thymulin (Reference)

Zinc-dependent thymic peptide that matures T-cells.

Compound#184· limited

Alpha-Ketoglutarate (AKG)

TCA-cycle intermediate studied for healthspan and frailty.

Compound#185· limited

Fisetin (Senolytic)

Polyphenol senolytic with neuroprotective and anti-inflammatory effects.

Compound#186· limited

Quercetin + Dasatinib (D+Q)

Reference senolytic combination cycled to clear senescent cells.

Amino Acid#187· limited

L-Carnosine

Dipeptide that buffers protons and reduces advanced glycation end-products.

Compound#188· limited

Ergothioneine (Extra)

Unique thiol antioxidant concentrated in mitochondria via OCTN1.

Mineral#189· limited

Calcium AEP (Membrane Calcium)

Cell-membrane-targeted form of calcium claimed for autoimmune support.