L-Tryptophan is an essential amino acid found in dietary sources.

Guarana seeds can be used to support energy levels, support healthy blood pressure within normal limits and support the digestive system.

Gymnema can help in blood sugar control.

Hawthorn can support the circulatory system as well as the health of the heart.

Hops aids in supporting the gastrointestinal system.

Horse chestnut treats vein problems and should not be used by individuals with kidney disease. It is a good vein-strengthening remedy.

Horseradish can be used to support skin health as a topical treatment.

Horsetail promotes bone health.

Inosine works in the nervous system to prevent neurologic injuries and support the growth of nerve cells.