Graviola — known across the tropics as soursop, guanábana, and corossol — is a large-leafed tree native to the Caribbean, Central and South America, and parts of West Africa and Southeast Asia, where it has been cultivated for centuries both for its distinctive fruit and the medicinal use of its leaves, bark, and roots. The dried leaves of Annona muricata have a long and well-documented place in traditional herbal practice, particularly within West Indian "bush medicine," where a leaf infusion has historically been prepared as a general tonic and nervine.
This offering presents the dried leaf in its whole loose form — 250g of certified organic material, unblended and free from fillers, flavours, or additives — allowing for preparation as a traditional infusion at the strength and frequency of your choosing.
Phytochemical profile
Annona muricata leaf contains a broad and complex array of phytochemicals. The most extensively studied are the annonaceous acetogenins — a class of polyketide-derived compounds unique to the Annonaceae family, of which the leaf contains numerous structurally distinct variants. The leaf also provides alkaloids (including reticuline and coreximine), flavonoids (quercetin, kaempferol, and rutin), phenolic acids, tannins, and ascorbic acid. This broad phytochemical spectrum underlies the plant's long-standing position in traditional botanical practice and the growing body of in vitro and preclinical research directed at its constituents.
Antioxidant activity
The flavonoid and phenolic fractions of A. muricata leaves have demonstrated significant free radical-scavenging capacity in experimental studies, consistent with the antioxidant activity attributed to plants with high flavonoid content. Antioxidant compounds help manage oxidative stress within cells and tissues and are a recognised component of a varied, plant-rich dietary pattern.
Traditional nervine and general wellness use
In traditional West Indian herbal practice, a leaf infusion prepared from Annona muricata has been used to support a calm, settled state of wellbeing. The plant is categorised as a nervine within folk traditions — a designation applied to botanicals used to support normal nervous system tone — and has historically been taken as a daily or regular infusion for general health maintenance.
Immunological interest
Preclinical research has examined the leaf's potential relevance to immune cell activity, with the flavonoid and alkaloid fractions being of particular interest. This research remains preliminary and does not support therapeutic claims; however, it provides context for the plant's traditional use as a general health tonic.
A note on the research landscape
Annona muricata has attracted significant international scientific interest, particularly regarding its acetogenin content. It is important to note that the majority of this research has been conducted in vitro or in animal models; no robust human clinical trials establishing therapeutic efficacy have been completed. Under New Zealand natural health regulations, no therapeutic or disease-related claims can be made for this product. It is offered as a traditional botanical infusion for general wellbeing.
Ingredient
Organic Annona muricata (graviola/soursop) dried leaf
Net weight: 205g
Preparation
Place 1–2 teaspoons (approximately 2–3g) of dried leaf into a tea infuser, strainer, or heatproof vessel. Pour 250–300ml of water just off the boil (approximately 90–95°C) over the leaves. Steep for 8–12 minutes, then strain. A light honey or slice of fresh lemon may be added to taste. One to two cups daily is the customary preparation amount referenced in traditional use contexts.
Allergen Information
Contains no known allergens. Free from gluten, dairy, soy, nuts, artificial colours, flavours, and preservatives. Certified organic. Suitable for vegans and vegetarians.
Cautions
Do not use during pregnancy or breastfeeding. The alkaloid content of Annona muricata leaf has not been assessed for safety in pregnancy, and use is not recommended.
Annonaceous acetogenins — naturally occurring constituents of this plant — have been associated with neurotoxic effects at high doses or with prolonged continuous use. Epidemiological data from the Caribbean have linked regular, long-term consumption of Annonaceae leaf infusions with an elevated incidence of atypical Parkinsonism. Whilst this risk is considered dose- and duration-dependent, continuous daily use beyond 6–8 weeks is not recommended without a break in supplementation or guidance from a healthcare practitioner.
Not recommended for concurrent use with antihypertensive medications, antidepressants (particularly MAO-inhibiting or dopaminergic agents), or immunosuppressive therapy without professional guidance. Individuals with a personal or family history of movement disorders or Parkinson's disease should exercise particular caution and consult their healthcare practitioner before use.
Keep out of reach of children. Store in a cool, dry place away from direct sunlight and moisture. Once opened, reseal the packaging and use within 12 months.
