Supplement library
Every supplement, explained.
Plain-language, evidence-based guides to what each supplement is, what it's for, and what the research actually shows.
5-HTP
A serotonin precursor used for mood and sleep — with real interaction risks.
Read more →Amino acid & proteinAcetyl-L-Carnitine
A form of carnitine studied for energy metabolism and cognition.
Read more →Other & antioxidantAlpha-GPC
A choline source studied for memory in dementia and for power output, with open safety questions.
Read more →Other & antioxidantAlpha-Lipoic Acid
An antioxidant compound studied for blood sugar and nerve health.
Read more →Botanical & herbAndrographis
A bitter herb that may modestly ease cold symptoms — though most of the trials behind it are low quality.
Read more →Other & antioxidantApple Cider Vinegar
A popular vinegar with small effects on blood sugar — and a lot of hype.
Read more →Botanical & herbArtichoke
A leaf extract studied for digestion and cholesterol.
Read more →Botanical & herbAshwagandha
An adaptogenic herb used to support the body's response to stress.
Read more →Other & antioxidantAstaxanthin
A red carotenoid antioxidant studied for skin, eye, and exercise support.
Read more →VitaminB-Complex
A group of eight water-soluble vitamins central to turning food into energy.
Read more →Botanical & herbBacopa
An herb traditionally used to support memory and learning.
Read more →Other & antioxidantBeetroot
A nitrate-rich root used to support blood flow, blood pressure, and exercise performance.
Read more →Botanical & herbBerberine
A plant compound with notable effects on blood sugar metabolism.
Read more →Amino acid & proteinBeta-Alanine
An amino acid that buffers muscle acid to support high-intensity performance.
Read more →Gut & digestiveBeta-Glucan
Oat and barley beta-glucan reliably lowers LDL cholesterol; immune claims for yeast types are early.
Read more →Amino acid & proteinBetaine (TMG)
A compound that helps lower homocysteine and supports methylation.
Read more →Botanical & herbBilberry
A berry famous for night-vision lore — careful trials haven't backed it up, though it's rich in anthocyanins.
Read more →VitaminBiotin
A B vitamin popular for hair and nails, though it mainly helps when you're deficient.
Read more →Botanical & herbBlack Cohosh
A popular menopause herb with mixed evidence for hot flashes and rare reports of liver injury.
Read more →MineralBoron
A trace mineral studied for bone and hormone markers.
Read more →Botanical & herbBoswellia
A resin extract with anti-inflammatory properties, studied for joint comfort.
Read more →Gut & digestiveBromelain
An enzyme from pineapple used for digestion and inflammation.
Read more →MineralCalcium
The primary mineral in bone, best obtained from food first.
Read more →Other & antioxidantChlorella
A green algae marketed for detox and nutrition, with limited evidence.
Read more →Other & antioxidantCholine
An essential nutrient for brain, nerve, and liver function.
Read more →Other & antioxidantChondroitin
A cartilage component often paired with glucosamine for joints.
Read more →MineralChromium
A trace mineral involved in insulin action, studied for blood sugar support.
Read more →Botanical & herbCinnamon
A common spice studied for modest blood-sugar effects.
Read more →Other & antioxidantCiticoline (CDP-Choline)
A brain-support compound with some evidence in older adults — and thin evidence for healthy younger people.
Read more →Omega & fatty acidCLA
A fatty acid marketed for fat loss, with weak and inconsistent evidence.
Read more →Amino acid & proteinCollagen
Hydrolyzed protein that supplies building blocks for skin, joints, and connective tissue.
Read more →Gut & digestiveColostrum & Immunoglobulins
Cow-derived immune proteins with modest, early evidence for gut and immune support — not a proven fix.
Read more →MineralCopper
A trace mineral that partners with zinc and supports iron metabolism.
Read more →Other & antioxidantCoQ10
An antioxidant compound involved in cellular energy production.
Read more →Botanical & herbCranberry
A berry extract used to help prevent recurrent urinary tract infections.
Read more →Amino acid & proteinCreatine
One of the most researched supplements, used to support strength, muscle, and recovery.
Read more →Botanical & herbCurcumin
The active anti-inflammatory compound in turmeric.
Read more →Other & antioxidantD-Mannose
Marketed for urinary tract support — but a large, well-run 2024 trial in women found no benefit.
Read more →Botanical & herbDandelion
A traditional herb used for liver and digestive support, with limited evidence.
Read more →Botanical & herbDGL Licorice
Licorice with the blood-pressure-raising compound removed — popular for heartburn, but thinly studied.
Read more →Omega & fatty acidDHA
An omega-3 fatty acid that's a major structural fat in the brain and eyes.
Read more →Other & antioxidantDHEA
A hormone precursor sold as anti-aging — rigorous trials disappointed, and it's not a casual supplement.
Read more →Gut & digestiveDigestive Enzymes
Enzymes that help break down food, used for occasional digestive comfort.
Read more →Other & antioxidantDIM
A compound from cruciferous vegetables marketed for hormone metabolism.
Read more →Botanical & herbEchinacea
A traditional immune herb with inconsistent trial results.
Read more →Botanical & herbElderberry
A berry extract popular for immune and cold support.
Read more →MineralElectrolytes
Genuinely useful for heavy sweating and fluid loss from illness — unnecessary for most everyday hydration.
Read more →Omega & fatty acidEvening Primrose Oil
A GLA-rich seed oil long used for PMS, breast pain and eczema — where trials have mostly disappointed.
Read more →Botanical & herbFenugreek
A kitchen spice with small, inconsistent effects on blood sugar and testosterone — and a maple-syrup scent.
Read more →Omega & fatty acidFlaxseed
A plant source of omega-3 (ALA), fiber, and lignans.
Read more →VitaminFolate (Folic Acid)
A B vitamin essential in early pregnancy for healthy fetal development.
Read more →Amino acid & proteinGABA
A calming neurotransmitter sold for relaxation — with an absorption catch.
Read more →Botanical & herbGarlic
A culinary bulb whose extracts modestly support blood pressure and cholesterol.
Read more →Botanical & herbGinger
A culinary root with strong evidence for nausea and some for inflammation.
Read more →Botanical & herbGinkgo Biloba
A traditional circulation and memory herb where big trials disappointed.
Read more →Gut & digestiveGlucomannan
A viscous soluble fiber from konjac root used for fullness and weight support.
Read more →Other & antioxidantGlucosamine
A joint supplement staple with genuinely mixed evidence.
Read more →Other & antioxidantGlutathione
The body's own key antioxidant — whether swallowing it helps is debated, and real benefits are unproven.
Read more →Amino acid & proteinGlycine
A simple amino acid studied for sleep quality and used as a building block.
Read more →Botanical & herbGrape Seed Extract
An antioxidant extract studied for blood pressure and circulation.
Read more →Botanical & herbGreen Tea Extract
Concentrated green-tea catechins studied for metabolism and weight support.
Read more →Botanical & herbGymnema
An Ayurvedic herb that dulls sweet taste, with small trials on blood sugar and real hypoglycemia risk.
Read more →Amino acid & proteinHMB
A leucine byproduct that may help older adults hold on to muscle — with little to offer trained athletes.
Read more →Botanical & herbHoly Basil (Tulsi)
An adaptogenic herb from Ayurveda used for stress support.
Read more →Other & antioxidantHyaluronic Acid
A moisture-binding molecule used for skin hydration and joints.
Read more →Other & antioxidantInositol
A sugar-like compound studied for metabolic, hormonal, and mood support.
Read more →MineralIodine
A trace mineral essential for thyroid hormone production.
Read more →MineralIron
An essential mineral needed to carry oxygen in the blood — supplement only when tests show you need it.
Read more →Omega & fatty acidKrill Oil
An omega-3 source from krill, delivered in phospholipid form.
Read more →Amino acid & proteinL-Arginine
An amino acid precursor to nitric oxide, studied for circulation.
Read more →Amino acid & proteinL-Carnitine
Essential for burning fat in cells, but supplements add only modest effects on weight or performance.
Read more →Amino acid & proteinL-Citrulline
An amino acid that supports nitric-oxide production and blood flow.
Read more →Amino acid & proteinL-Glutamine
An amino acid that fuels gut-lining and immune cells.
Read more →Amino acid & proteinL-Lysine
An essential amino acid popular for cold sores — the research is mixed and often underwhelming.
Read more →Amino acid & proteinL-Theanine
An amino acid from green tea that promotes calm, focused relaxation without sedation.
Read more →Amino acid & proteinL-Tyrosine
An amino acid precursor to dopamine, studied for focus under stress.
Read more →Amino acid & proteinLactoferrin
An iron-binding milk protein with intriguing iron and immune research, much of it small or mixed.
Read more →Botanical & herbLemon Balm
A gentle mint-family herb for calm and sleep, with promising but small and short studies.
Read more →Botanical & herbLion's Mane
A culinary-medicinal mushroom studied for cognitive support.
Read more →Other & antioxidantLutein & Zeaxanthin
Carotenoid antioxidants that concentrate in the retina and support eye health.
Read more →Other & antioxidantLycopene
The red pigment in tomatoes — linked to prostate and heart health in diet studies, with thin supplement data.
Read more →Botanical & herbMaca
A Peruvian root traditionally used for energy, libido, and vitality.
Read more →MineralMagnesium
An essential mineral involved in hundreds of body processes, from muscle and nerve function to sleep and blood pressure.
Read more →MineralManganese
An essential trace mineral for bone formation and antioxidant enzymes.
Read more →Omega & fatty acidMCT Oil
A rapidly absorbed fat used for quick energy and in ketogenic diets.
Read more →Botanical & herbMedicinal Mushrooms
Fascinating lab science and long traditional use, but human evidence for most mushroom products is early.
Read more →Other & antioxidantMelatonin
Your body's own sleep-timing hormone, used as a short-term sleep aid.
Read more →Botanical & herbMilk Thistle
A botanical used to support liver health, with its active compound silymarin.
Read more →Other & antioxidantMSM
A sulfur compound studied for joint comfort and inflammation.
Read more →Other & antioxidantNAC
A precursor to glutathione, the body's key internal antioxidant.
Read more →Other & antioxidantNAD+ Precursors (NR & NMN)
Reliably raise NAD+ in blood — but benefits for aging, energy, or health in people are still unproven.
Read more →Botanical & herbOlive Leaf Extract
An olive-tree leaf extract with small, early trials on blood pressure and blood sugar — promising, not proven.
Read more →Omega & fatty acidOmega-3 (Fish Oil)
Marine fatty acids (EPA and DHA) that support heart, brain, joint, and eye health.
Read more →Botanical & herbOregano Oil
Potent against microbes in a lab dish, but human evidence is thin — and it's no antibiotic substitute.
Read more →Botanical & herbPanax Ginseng
An adaptogenic root traditionally used for energy and vitality.
Read more →Botanical & herbPassionflower
A traditional calming herb with small, encouraging studies for anxiety and sleep — but not much more.
Read more →Gut & digestivePeppermint Oil
Enteric-coated capsules have fairly good evidence for easing IBS symptoms — but they can aggravate heartburn.
Read more →Other & antioxidantPhosphatidylserine
A cell-membrane phospholipid studied for memory in older adults.
Read more →Botanical & herbPine Bark Extract (Pycnogenol)
Many small trials on circulation and skin, but independent reviews call the evidence insufficient.
Read more →MineralPotassium
An essential electrolyte for blood pressure, heart rhythm, and muscle function.
Read more →Other & antioxidantPQQ
An antioxidant compound marketed for mitochondrial and brain support.
Read more →Gut & digestivePrebiotics
Fibers that feed beneficial gut bacteria.
Read more →Other & antioxidantPregnenolone
A hormone precursor with very limited human evidence — interesting research, not a proven supplement.
Read more →Gut & digestiveProbiotics
Live beneficial bacteria that support gut balance — with strain-specific effects.
Read more →Amino acid & proteinProtein Powder
Concentrated dietary protein used to support muscle, recovery, and fullness.
Read more →Gut & digestivePsyllium
A soluble fiber used for regularity, cholesterol, fullness, and modest weight support.
Read more →Other & antioxidantQuercetin
A plant flavonoid with antioxidant properties, studied for allergy and respiratory support.
Read more →Other & antioxidantResveratrol
A plant polyphenol popular in anti-aging marketing, with unproven human benefits.
Read more →Botanical & herbRhodiola
An adaptogenic herb traditionally used for fatigue and stamina.
Read more →Gut & digestiveSaccharomyces boulardii
A probiotic yeast with some of the better evidence for diarrhea during antibiotic use.
Read more →Botanical & herbSaffron
A spice extract with encouraging early evidence for mood.
Read more →Other & antioxidantSAM-e
A compound with reasonable evidence for mood and joint comfort.
Read more →Botanical & herbSaw Palmetto
A botanical marketed for prostate health — where rigorous trials have been disappointing.
Read more →MineralSelenium
A trace mineral with antioxidant and thyroid roles — with a narrow safe range.
Read more →Botanical & herbSlippery Elm
A soothing traditional bark for sore throats and digestion — long used, but barely studied.
Read more →Other & antioxidantSpirulina
A nutrient-dense algae with antioxidant properties.
Read more →Botanical & herbSt. John's Wort
Real research in mild-to-moderate depression — but serious drug interactions make it one to discuss first.
Read more →Other & antioxidantSulforaphane
A broccoli sprout compound with intriguing early research — and big differences in what products deliver.
Read more →Other & antioxidantTart Cherry
A polyphenol-rich fruit studied for recovery and sleep.
Read more →Amino acid & proteinTaurine
An amino acid involved in heart, muscle, and nervous-system function.
Read more →Botanical & herbValerian
A traditional sleep and relaxation herb with modest, mixed evidence.
Read more →VitaminVitamin A
A fat-soluble vitamin essential for vision, immunity, and skin.
Read more →VitaminVitamin B1 (Thiamine)
An essential B vitamin for converting carbohydrates into energy.
Read more →VitaminVitamin B12
An essential B vitamin for nerves, red blood cells, and energy metabolism.
Read more →VitaminVitamin B2 (Riboflavin)
An essential B vitamin for energy metabolism, studied for migraine prevention.
Read more →VitaminVitamin B3 (Niacin)
A B vitamin whose high-dose form affects cholesterol — with real cautions.
Read more →VitaminVitamin B5 (Pantothenic Acid)
An essential B vitamin needed to make coenzyme A for energy metabolism.
Read more →VitaminVitamin B6
A B vitamin involved in mood, metabolism, and hormone regulation.
Read more →VitaminVitamin C
A water-soluble antioxidant vitamin needed for immune function and collagen production.
Read more →VitaminVitamin D3
A fat-soluble vitamin (really a hormone) central to bone, immune, and muscle health that many people run low on.
Read more →VitaminVitamin E
A fat-soluble antioxidant vitamin — beneficial at dietary levels, not as a high-dose supplement.
Read more →VitaminVitamin K1
The plant form of vitamin K, essential for blood clotting.
Read more →VitaminVitamin K2
A fat-soluble vitamin that helps direct calcium into bone.
Read more →Botanical & herbVitex (Chasteberry)
An herbal extract with modest, reasonably consistent evidence for PMS symptoms — with real interactions.
Read more →MineralZinc
An essential trace mineral important for immune function, wound healing, and hormone health.
Read more →Gut & digestiveZinc Carnosine
A zinc compound used for stomach lining support in Japan — promising, but Western research is small.
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