Tilo (aka. Piri Piri; Justicia pectoralis) is a low, aromatic herb from tropical America in the Acanthaceae, with small leaves rich in coumarin and umbelliferone that give it a sweet “vanilla‑hay” scent.
It bears small tubular flowers and is frequently dried and sold as “Tilo” or “Carpenter’s Bush” in Latin American markets for household remedies and teas.
The sweetly aromatic aerial parts are burned or smoldered as an incense/ pleasant smoke or fumigant and incorporated into ritual snuffs in some Amazonian and Caribbean traditions, where the smooth‑muscle‑relaxing coumarins are thought to soften the harsher effects of other admixture plants.
The dried leaves are also valued as a fragrant additive to herbal teas and household potpourri, and occasionally as a mild tobacco substitute or flavoring.
In traditional medicine, Tilo is used as a sedative “nervine” and sleep aid, and to calm anxiety, nervous disorders, and headache, particularly in Cuba and Costa Rica. It is also widely prepared as infusions or syrups for cough, bronchitis, asthma, and other respiratory complaints, and appears in Brazil’s Farmácias Vivas public phytotherapy program for these indications. In several regions it is further used for dysmenorrhea, PMS, menopausal symptoms, and general inflammatory or pain conditions, including prostatitis and musculoskeletal pain.
Through scientific investigation, reported activities include sedative, anxiolytic, analgesic, anti‑inflammatory, antihistaminic, antiasthmatic/bronchodilator, antispasmodic, smooth muscle relaxant, estrogenic, progestagenic, hypoglycemic, antimicrobial, and cytotoxic/antineoplastic effects.
One study examined the estrogenic and progestagenic actions of Costa Rican material, showing that extracts of Tilo act as agonists at estrogen and progesterone receptors and inhibit COX‑2, providing a mechanistic explanation for its use in PMS and menopause support.
In another study on animal models of asthma, the aqueous leaf extract of Tilo was found to significantly reduce histamine‑induced wheal formation and tracheal smooth‑muscle contraction, demonstrating combined antihistamine and anti‑inflammatory actions in line with its traditional use for cough, bronchitis, and asthma.
Tilo: From Calm Tea to Sacred Smoke 🌿 ☕ ☁️ ✨

