#StreblusAsper

For centuries, the sturdy branches of ข่อย (Khoi)—scientifically known as Streblus asper—have woven through the everyday lives and healing traditions of Thailand and its Asian neighbors. Revered in traditional medicine, immortalized in local folklore, and even etched into the chronicles of early Siamese literacy, this unassuming “toothbrush tree” continues to captivate the attention of healers and scientists alike. Today, the resurgence of interest in natural health remedies repositions Khoi not just as an artifact of folk heritage, but as a candidate for contemporary herbal medicine, demanding a closer look at the science behind its storied reputation.