ZMA Formula (mg) 100. Matrix Hardcore Zinc Magnesium Aspartate is a precision engineered combination of a potent testosterone and IGF-1 boosting formula including zinc, magnesium and vitamin B6. Matrix Zinc Magnesium Aspartate Formula is ideal for individuals attempting to achieve significant gains in muscle size and strength, it is also very useful for any individual looking to improve the quality of sleep and assist the body’s natural restoration process.