The phrase "muscle builder" refers to something that helps make your muscles stronger and bigger. It usually refers to exercises, supplements, or programs designed to improve muscle strength and size. Full definition
It is something that many people pushing the steroid alternatives have been billed as a powerful muscle builder that works as well as steroids on its own. (theathleticbuild.com)
This is another excellent product that is designed for bodybuilders and strength athletes and it is the best muscle builder of all the products on our list. (theathleticbuild.com)
It's the classic muscle builder for people of all ages and fitness levels. (fitnessandpower.com)