Best Capsule Energy Supplements in 2026

Magnesium combined with amino acid glycine creates a unique chelated compound that is highly bioavailable and well tolerated by even the most sensitive individuals.

Contains 100mg of magnesium (bisglycinate chelate and magnesium oxide) per capsule.

Magnesium helps convert carbohydrates, protein, and fats to energy, acts as a catalyst in thousands of enzymatic processes, regulates and maintains vascular tone, opposes calcium deposition into soft tissue, and is critical to proper bone formation.*

Premier four-in-one magnesium formula providing several important forms of magnesium.

Magnesium succinate, magnesium taurinate, magnesium malate, and magnesium aspartate are bioavailable forms designed to provide optimal absorption and utilization.*

Magnesium is necessary for energy (ATP) production, sustaining heart health and healthy blood vessels, and for optimal skeletal muscle function.*

High-potency, fast-dissolving tablets featuring bioactive forms of both vitamin B12 (1000mcg methylcobalamin) and folate to support cardiovascular and nervous system health.*

Convenient lozenge form supports optimal absorption and utilization by the body.*

Folate complements actions of B12 for homocysteine methylation and nervous system function. These tiny tablets use premium active folate (methylfolate).*

High Potency, Active Complex - This activated B complex is formulated to enhance your lifestyle with amounts and forms of B vitamins that are directly usable by the human body.*

Superior Folate & B12 - Includes Metafolin (L-5-MTHF), a bioactive form of folate that ensures more immediate effects on metabolism than common folic acid. B12 as methylcobalamin promotes B12 absorption and bioavailability.*

B Vitamins At Their Best - Includes benfotiamine, a fat-soluble derivative of thiamin with increased absorption compared to common water-soluble forms. Also includes active forms of vitamin B2 and vitamin B6 as P-5-P, nutrients that support energy production (metabolism).*

A readily soluble form of magnesium.

Supplies 150 mg per vegetarian capsule.

Magnesium helps convert carbohydrates, protein, and fats to energy, acts as a catalyst in thousands of enzymatic processes, facilitates relaxation, regulates and maintains vascular tone, and is critical to proper bone formation.*

High-potency 5,000 mcg of biotin supplied in small, easy-to-swallow capsules.

Biotin-dependent enzymes are involved in skin and hair nutrition.*

Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives.

This high-potency B-complex vitamin supplement is formulated to be hypoallergenic* and yeast free.

B vitamins are essential nutrients required for optimal health and functioning of numerous systems and biochemical reactions in the body, including energy production, brain, liver and nerve cell function, and muscle tone in the GI tract.*

Active forms of folate (Metafolin® L-5-methyltetrahydrofolate) and vitamin B12 (methylcobalamin) are used for enhanced absorption and bioavailability.*

ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.

Natural and freeze-dried to help preserve activity.

Hypoallergenic* product supplied in vegetarian capsules.

ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.

Bioavailable bisglycinate chelate from Albion® Laboratories.

This hypoallergenic* product supplies 30 mg elemental iron per capsule.

Make It Two - This maintenance multivitamin offers an ideal middle ground between once-dailies (which may provide insignificant nutrient amounts) and comprehensive 6-tablet formulas. Supplies significant amounts of essential nutrients in well-utilized forms in just two tablets daily.*

Professional Grade, Premium Nutrients - Packed with high quality, bioavailable nutrients designed for optimal absorption and tolerance. Compared to common retail once daily multis, VitaPrime offers enhanced antioxidant protection, broader trace element nutrition, and augmented B vitamin support.*

Active B Vitamins & Mineral Chelates - Active folate (L-5-MTHF), chelated minerals (magnesium bisglycinate chelate & more!), and B12 as methylcobalamin support optimal comfort and efficacy of these essential nutrients.*

Multi-Element Buffered C adds calcium, magnesium, and potassium to ascorbic acid to create a buffered product that is gentle on the stomach.

Includes zinc, manganese, and copper in well-utilized forms.

Quercetin, a potent bioflavonoid, and reduced L-glutathione, an antioxidant, are included to potentiate the function of vitamin C.*

25 billion CFU, multispecies probiotic blend to support healthy energy metabolism.*

Provides four Lactobacillus and three Bifidobacterium species in a plant cellulose base.*

Supports healthy immune and gut barrier function.*

ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.

Bioavailable Albion® trisglycinate chelate in convenient chewable*

30 mg of exceptionally well-tolerated and taste-free elemental iron per tablet.*

ProThera and Klaire Labs have unified under the Klaire Labs logo. This unification will be reflected in new packaging and a continuing commitment to the founding Klaire Labs principles of purity, potency, and performance.

Focused support for mitochondrial energy production.*

Lecithin is excluded from MitoThera capsules for improved tolerance by those who are sensitive to soy.

Designed to support the body's ability to respond to stress.*

Delivers beneficial amounts of glycyrrhizic acid, herbs, and several vitamins.

Featuring vitamin B6 (as pyridoxal-5-phosphate), n-acetyl tyrosine, L-carnitine, eleuthero, rhodiola, bacopa, and more. Please note that this is not a vegetarian formula.

Hypoallergenic* and free of other nutrients.

Pure coenzyme Q10 as ubiquinone.

Supplies 60 mg per vegetarian capsule.

500mg Acetyl-L-Carnitine provided in the stable, hydrochloride HCl form.*

Research on this acetylated derivative of L-carnitine has centered largely on its role in helping to maintain brain and nerve function during aging.*

Hypoallergenic* product free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, corn, and yeast. Contains no artificial colors, flavors, or preservatives.

Added calcium, magnesium, and potassium create a buffered vitamin C product that is gentle on the stomach.

Includes zinc, manganese, and copper in well-utilized forms.

Potent bioflavonoid Quercetin and reduced antioxidant L-glutathione are included to potentiate the function of vitamin C.*

A synergistic combination of a buffered, non-acidic form of vitamin C and several different types of bioflavonoids.*

Hypoallergenic* formula featuring a citrus bioflavonoid complex, rutin, and French maritime pine extract.

A good choice for those who wish to obtain the protective benefits of these antioxidants for the skin, joints, heart, and immune system.*

Hypoallergenic* product with 700 mg of L-arginine HCl per capsule.

Supports nitric oxide synthesis.*

L-arginine also promotes tissue integrity, energy metabolism, and immune function.*

Pure L-carnitine produced according to USP guidelines and are free of potentially harmful synthetic D-carnitine.

Heart and skeletal muscle contain abundant amounts of L-carnitine, which is essential for meeting tissue energy demands by transporting fatty acids to the mitochondria.*

This hypoallergenic* product supplies 250 mg per vegetarian capsule.

Coenzyme Q10 - A fat-soluble nutrient essential for cellular energy production and is important for antioxidant activity.*

Each vegetarian capsule provides 150 mg of pure ubiquinone.

SAMe 200 - Versatile nutrient that supports mood regulation, joints, and liver function.* An enteric tablet coating is applied to further ensure a biologically active product.