Want to build muscle fast and effectively.... Muscle Builder Gel is an innovative new product developed over two years by LA Muscle Laboratories. Muscle Builder Gel is a penetrative water-based, quick dissolving gel which can be rubbed into most major muscles to enhance and assist their growth. Muscle Builder's active ingredients are absorbed through the skin and the small capillaries underneath the skin. This product has been tried and tested by celebrities and Personal Trainers such as The Active Channel presenters Dean Ash and Danni Levy.