Vallarai thokku is made from the delicate leaves of Indian pennywort (Centella asiatica), a creeping plant with round leaves that grows in tropical regions. In Ayurveda, this plant is considered a 'medhya rasayana' or brain tonic due to its cognitive-enhancing properties. The leaves have a slightly bitter taste and cool properties. When cooked with mild spices, they create a soothing, cooling paste that's believed to enhance memory and mental clarity. This traditional health thokku is consumed in small quantities.
Vallarai thokku is considered a brain tonic in Ayurvedic medicine and has been shown in studies to support cognitive function, memory, and concentration. The plant contains compounds that may help reduce anxiety and promote relaxation. Vallarai has cooling properties that help reduce body heat and calm excessive pitta (heat) in the body. It improves skin health by promoting collagen synthesis and reducing inflammation. The plant also acts as a mild diuretic, supporting healthy kidney function, and has traditionally been used to treat skin conditions and promote wound healing.