Herb Garden

Respiratory Support and Bronchial Health
Kumarahou is widely regarded as one of the most effective natural respiratory tonics in traditional Rongoā Māori (medicine). Its primary mechanism of action is attributed to a high concentration of saponins, natural surfactants that act as a powerful expectorant. [1] These compounds work to reduce the viscosity of mucus in the lungs, facilitating its expulsion and soothing the bronchial outcome. [2] Historically known as "Gumdigger's Soap," the plant has been used for generations to alleviate symptoms associated with asthma, bronchitis, and chronic catarrh. [3] Modern phytochemical analysis confirms the presence of these triterpenoid saponins, supporting its efficacy in maintaining clear airways and respiratory comfort. [4]

Dermatological Health and Detoxification
Beyond respiratory care, Kumarahou functions as a "blood purifier" and general detoxifier. The leaves are rich in flavonols, specifically quercetin and kaempferol, and ellagic acid, which exhibit strong antioxidant and anti-inflammatory activity. [5,6] These compounds assist the body in managing oxidative stress and inflammation, which are often precursors to skin ailments. Topical and internal applications have demonstrated antimicrobial properties, making the herb effective in managing skin sores, wounds, and rashes. [7] By supporting the body’s elimination pathways (kidneys and skin), Kumarahou aids in the removal of metabolic waste, contributing to a clearer complexion and overall vitality. [8]

Toxicity
Kumarahou has a long history of safe use within traditional contexts; however, comprehensive modern toxicological data is less extensive than widespread culinary herbs. The high saponin content, while therapeutic, can cause gastric irritation or nausea if consumed in excessive quantities. [9] It is generally recommended to adhere to standard dosing protocols. There is no evidence of genotoxicity in standard extracts, but due to limited clinical data on fetal safety, it is typically advised to avoid use during pregnancy unless directed by a healthcare professional. [10]