These compounds possess antibacterial and antifungal properties, responsible for the beneficial effects experienced when using a weak Rooibos solution as a face wash. Carboxylic acids are also weak antioxidants.
Luteolin and quercetin possess strong antispasmodic properties, as seen in the calming effect of Rooibos on babies with colic.
Luteolin, quercetin, isoquercetin and rutin are powerful antioxidants which also play a role in the control of diabetic complications.
Rutin-Vitamin P activity enhances the health and function of capillary arteries. Quercetin prevents the oxidation of LDLs (low-density lipoproteins), which may indicate its effectiveness in fighting atherosclerosis.
Orientin, iso-orientin, vitexin and iso-vitexin contribute towards antioxidant properties and lower blood pressure.
These non-nutritive sweeteners help give Rooibos its sweet, natural taste.
Rooibos is the only source for aspalathin. Aspalathin and nothofagin are non-nutritive sweeteners and powerful antioxidants.
Tannins reduce the digestibility of proteins, adversely affecting the absorption of food. However, there is strong evidence that the tannins in red wine are actually responsible for the low incidence of heart disease and cancer in countries where consumption of the beverage is high - an enigma known as the "French paradox". The tannin catechin is used by the Japanese in toothpaste and candy, amongst others.
(+)-Pinitol helps lower blood-sugar levels, and is used as an expectorant.
Alpha hydroxy acids are important ingredients in beauty preparations and creams for dermatological diseases. They are thought to be the reason skin creams containing Rooibos are so effective at preserving young, beautiful complexions.
Iron, potassium, calcium, copper, zinc, manganese and sodium are essential for normal human metabolic processes.
Rooibos is naturally caffeine free, as is claimed to relieve insomnia and calm nervous tension.
