Legal steroids come in different types and packages as you can gleaned on the pages. I suggest you review what is offered there and read the labels or the information provided for each product to identify which is most suited for your needs. I believe most of the steroids used for muscle build up take about a week to effect. It means you begin to see changes within a week of taking these drugs. You can also get hold of their guide book to learn more about steroids to maximize your money and efforts. The steroids work well when combined with proper diet and exercise. The exercise and diet hastens the process within your body to quicken the impact and get your muscles to build fast.