Best Supplements for Energy
19 evidence-based options for energy, summarized from the research: what they do, how to dose them, and how they work together.
Caffeine
The world's most popular cognitive stimulant.
Citicoline
A choline source studied for focus, memory, and brain health.
Coenzyme Q10 (CoQ10)
A mitochondrial antioxidant for cellular energy and heart health.
Folate (B9)
The active B vitamin behind methylation, mood, and pregnancy health.
Iron
Oxygen-carrying mineral critical for energy.
L-Arginine
The nitric oxide precursor for blood flow and cardiovascular health.
L-Citrulline
A superior nitric oxide booster that outperforms arginine for pumps and endurance.
L-Tyrosine
The dopamine precursor that sharpens focus under stress.
Panax Ginseng
A classic adaptogen for energy, stress, and cognition.
Rhodiola Rosea
An adaptogen for fatigue, stress, and mental performance.
Taurine
A conditionally essential amino acid for the heart, muscles, and calm focus.
TMG (Trimethylglycine)
A methyl-donor cousin of glycine for homocysteine, liver, and power.
Tongkat Ali
A traditional herb studied for testosterone, stress, and vitality.
Vitamin B1 (Thiamine)
The energy metabolism cofactor that keeps nerves and muscles firing.
Vitamin B12 (Cobalamin)
The methylation and nerve-health vitamin that protects the brain and blood.
Vitamin B2 (Riboflavin)
The flavin cofactor behind energy, antioxidant defence, and migraine prevention.
Vitamin B3 (Niacin)
The NAD+ precursor that supports energy, cholesterol, and cellular repair.
Vitamin B5 (Pantothenic Acid)
The acetyl-CoA cofactor behind stress hormones, energy, and skin healing.
Vitamin B7 (Biotin)
The keratin and metabolism cofactor best known for hair, skin, and nails.
Where to buy for energy
Our top options for this goal. Choose third-party-tested brands in the forms each supplement's page recommends.
Some links below are affiliate links: if you buy through them we may earn a small commission at no extra cost to you. It never changes our ratings or evidence grades.
Combinations to know
How these supplements pair with each other and beyond.
Folate (B9) + TMG (Trimethylglycine)
TMG provides a folate-independent route to remethylate homocysteine (via BHMT), complementing the folate/B12 pathway, useful when folate cycling is impaired.
Folate (B9) + Vitamin B12 (Cobalamin)
Folate and B12 work as a pair in the methylation cycle. B12 is required for folate to re-enter active circulation; deficiency in either disrupts both.
L-Arginine + L-Citrulline
L-Citrulline converts to arginine in the kidneys far more efficiently than oral arginine; the two share the same nitric oxide pathway.
Caffeine + Taurine
Taurine is a staple of energy drinks alongside caffeine, where it is thought to smooth the stimulant's edge and support cardiac function.
Caffeine + L-Tyrosine
Tyrosine and caffeine are commonly stacked for sustained focus; tyrosine may offset the catecholamine depletion that follows caffeine's stimulant effect.
Folate (B9) + Iron
Both folate and iron are needed for healthy red blood cell production. Deficiency in either causes anaemia.
Frequently asked questions
What are the best supplements for energy?
The most-researched options are Caffeine, Citicoline, Coenzyme Q10 (CoQ10), Folate (B9), Iron, L-Arginine, L-Citrulline, L-Tyrosine, Panax Ginseng, Rhodiola Rosea, Taurine, TMG (Trimethylglycine), Tongkat Ali, Vitamin B1 (Thiamine), Vitamin B12 (Cobalamin), Vitamin B2 (Riboflavin), Vitamin B3 (Niacin), Vitamin B5 (Pantothenic Acid), and Vitamin B7 (Biotin). Each is summarised with its benefits, typical dosing, and the strength of the evidence behind it.
How were these energy supplements chosen?
These are the supplements in the Vital Matrix library most commonly used for energy, graded by the strength of human evidence. See our methodology for how we grade the research.
Can you combine supplements for energy?
Yes, several pair well. For example, Folate (B9) and TMG (Trimethylglycine): TMG provides a folate-independent route to remethylate homocysteine (via BHMT), complementing the folate/B12 pathway, useful when folate cycling is impaired.