The mukul myrrh (Commiphora mukul) tree is a small, thorny plant distributed throughout India. Guggul and gum guggulu are the names given to a yellowish resin produced by the stem of the plant. This resin has been used historically and is also the source of modern extracts of guggul.
The classical treatise on Ayurvedic medicine, Sushrita Samhita, describes the use of guggul for a wide variety of conditions, including rheumatism and obesity. One of its primary indications was a condition known as medoroga. This ancient diagnosis is similar to the modern description of atherosclerosis. Standardized guggul extracts are approved in India for lowering elevated serum cholesterol and triglyceride levels.