Best ingredients for energy

Purified, dehydrated caffeine — the standard stimulant in pre-workouts, energy, and focus products.

Typical: 100–200 mg

Coenzyme Q10 in its oxidized form, ubiquinone, is the standard, most-studied CoQ10 ingredient.

Typical: 100–300 mg

Cyanocobalamin is the synthetic, highly stable form of vitamin B12 used in most supplements and fortified foods.

Typical: 100–1,000 mcg

A leaf extract of Camellia sinensis concentrated for catechins, especially EGCG, with a small amount of naturally occurring caffeine.

Typical: 300–500 mg

Methylcobalamin is one of the two coenzyme forms of vitamin B12 that the body uses directly, in this case for the methionine synthase reaction that recycles homocysteine and supports methylation.

Typical: 100–1,000 mcg

Dried and milled beet root or beet juice, used in pre-workout, endurance, and heart-health powders as a whole-food source of dietary nitrate.

Typical: 5–10 g

Ferrous iron chelated with two glycine molecules, the form most prenatal and gentle-iron products now use.

Typical: 18–30 mg

MCT oil is a clear, flavorless oil made by fractionating coconut or palm kernel oil to isolate the medium-chain fatty acids caprylic (C8) and capric (C10) acid as triglycerides.

Typical: 5–15 g

A conditionally essential amino acid that serves as the direct precursor to dopamine, norepinephrine, and epinephrine.

Typical: 500–2,000 mg

Alpha-lipoic acid is a sulfur-containing compound that serves as a mitochondrial enzyme cofactor and a water- and fat-soluble antioxidant.

Typical: 300–600 mg

A root extract from an arctic and alpine plant, standardized to rosavins and salidroside, that is used in energy, focus, and stress formulas.

Typical: 200–600 mg

A cruciferous root grown in the Peruvian Andes, dried and milled into a powder used in libido, energy, and hormone-balance formulas.

Typical: 1,500–3,000 mg

Pyridoxine hydrochloride is the standard, inexpensive, and highly stable form of vitamin B6 used in nearly all multivitamins and B-complex products.

Typical: 1.7–50 mg

The reference iron salt used in most clinical research and public-health programs, inexpensive and reliably absorbed.

Typical: 18–45 mg

Maltodextrin is a partially hydrolyzed starch consisting of short glucose chains, characterized by a dextrose-equivalent (DE) value that indicates how far the starch has been broken down.

Typical: 15–30 g

The root of Asian ginseng, standardized to ginsenosides, used in energy, fatigue, and vitality products.

Typical: 200–400 mg

The standard iodine source in multivitamins, prenatals, and thyroid-support formulas, about 76.5% iodine by weight and absorbed almost completely.

Typical: 150–300 mcg

An acetylated form of carnitine that crosses the blood-brain barrier more readily than carnitine itself and donates acetyl groups for acetylcholine synthesis.

Typical: 500–2,000 mg

Niacinamide is the amide form of vitamin B3 and the niacin source used in most multivitamins because it delivers full NAD-precursor activity without the skin flush of nicotinic acid.

Typical: 16–35 mg

Ubiquinol is the reduced, active antioxidant form of coenzyme Q10 and the form that predominates in blood.

Typical: 100–200 mg

Cordyceps militaris is the cultivated, fruiting-body species that has replaced wild Cordyceps sinensis in most supplements because it grows on grain or liquid substrate at scale and contains measurable cordycepin.

Typical: 1,000–3,000 mg

A stable, highly soluble salt of L-carnitine with tartaric acid, the form most used in exercise-recovery research.

Typical: 1,000–2,000 mg

Guarana is the seed of Paullinia cupana, an Amazonian vine whose seeds contain more caffeine by weight than coffee beans, along with theobromine and tannins.

Typical: 100–400 mg

A root extract from a Southeast Asian shrub used in men's vitality, stress, and libido formulas.

Typical: 200–400 mg

MCT oil powder is MCT oil spray-dried onto a carbohydrate carrier, most often acacia gum or maltodextrin, to produce a free-flowing powder that disperses in water.

Typical: 5–10 g

Thiamin hydrochloride is one of the two standard water-soluble salts of vitamin B1 used in supplements (the other is the mononitrate).

Typical: 1.5–100 mg

Dextrose is crystalline D-glucose, usually produced by hydrolyzing corn starch.

Typical: 10–30 g

Magnesium paired with malic acid, an intermediate of the Krebs cycle.

Typical: 100–350 mg

Nicotinic acid is the acid form of vitamin B3 and, with nicotinamide, one of the two standard niacin sources in supplements.

Typical: 16–35 mg

Riboflavin is the yellow, water-soluble B vitamin that the body builds into the flavin coenzymes FMN and FAD, which drive energy production and the recycling of other vitamins including B6, folate, and niacin.

Typical: 1.3–400 mg

Highly branched cyclic dextrin (HBCD) is a glucose polymer made by acting on amylopectin with a branching enzyme, producing large cyclic molecules with a narrow molecular-weight distribution.

Typical: 15–30 g

A ferrous salt of fumaric acid that carries about 33% elemental iron, the highest of the common iron forms, which keeps tablets small.

Typical: 18–45 mg

Brown seaweed, usually Laminaria or Ascophyllum species, used as a whole-food iodine source in thyroid and multimineral formulas.

Typical: 150–300 mcg

Shilajit is a blackish resin that seeps from Himalayan and other mountain rocks, formed from centuries of compressed plant matter.

Typical: 250–500 mg

Bitter orange extract is made from the immature fruit or peel of Citrus aurantium and is standardized to p-synephrine, a protoalkaloid structurally related to ephedrine but with much weaker cardiovascular activity.

Typical: 200–500 mg

Theacrine is a purine alkaloid structurally related to caffeine, found in kucha tea and cupuaçu.

Typical: 50–200 mg

Calcium pantothenate is the stable calcium salt used to deliver pantothenic acid (vitamin B5), the building block of coenzyme A and therefore of fat, carbohydrate, and protein metabolism.

Typical: 10–500 mg

The root of a ginseng species native to North America, used in focus and calm-energy formulas.

Typical: 200–400 mg

Capsimax is a branded red pepper extract from OmniActive standardized to 2% capsaicinoids and coated in a beadlet designed to release in the intestine rather than the stomach, limiting the burning sensation of plain cayenne.

Typical: 100 mg

CS-4 is a strain of mycelium originally isolated from wild Cordyceps sinensis and grown by liquid fermentation, which makes it far cheaper and more consistent than the wild caterpillar fungus.

Typical: 1,000–3,000 mg

A shrub root from Siberia and northern Asia, marketed for decades as Siberian ginseng even though it is not a true Panax species.

Typical: 300–1,200 mg

Nicotinamide riboside is a naturally occurring form of vitamin B3 that the body converts to NAD+ through a shorter route than niacin or niacinamide.

Typical: 250–500 mg

R-alpha-lipoic acid is the naturally occurring enantiomer of lipoic acid, the form made in mitochondria and used as a cofactor for energy-producing enzymes.

Typical: 100–300 mg

Yerba mate is the leaf of Ilex paraguariensis, brewed as a tea across South America.

Typical: 500–1,500 mg

The root of a legume used for centuries in Chinese herbal practice as a tonic, now included in immune, energy, and longevity formulas.

Typical: 250–1,000 mg

Nicotinamide mononucleotide is the phosphorylated intermediate between nicotinamide riboside and NAD+ and one of the most popular healthy-aging ingredients.

Typical: 250–600 mg

Pyrroloquinoline quinone is a redox cofactor found in trace amounts in foods such as natto, kiwi, and green tea.

Typical: 10–20 mg

Pyridoxal 5'-phosphate is the active coenzyme form of vitamin B6 and the form measured in blood to assess B6 status.

Typical: 1.7–50 mg

Methylliberine is a purine alkaloid found in kucha tea leaves and coffee, structurally close to theacrine but with a faster onset and shorter duration.

Typical: 100–150 mg

An extract of the berries of a woody vine native to northern China and Korea, prized in traditional practice as a five-flavor tonic and used in modern adaptogen, liver, and endurance formulas.

Typical: 500–1,000 mg

Isomaltulose is a disaccharide of glucose and fructose joined by an alpha-1,6 bond, produced enzymatically from sucrose.

Typical: 15–30 g

Benfotiamine is a synthetic, lipid-soluble derivative of thiamin that is converted to thiamin in the body.

Typical: 150–600 mg

Grains of paradise are the seeds of Aframomum melegueta, a West African plant in the ginger family.

Typical: 30–40 mg

Riboflavin 5'-phosphate is the phosphorylated coenzyme form of vitamin B2 (flavin mononucleotide), supplied as its sodium salt.

Typical: 1.3–25 mg

Adenosylcobalamin is the mitochondrial coenzyme form of vitamin B12, required by methylmalonyl-CoA mutase to feed odd-chain fatty acids and certain amino acids into the citric acid cycle.

Typical: 100–1,000 mcg