Instantly eliminates the appearance of thinning hair with a perfectly natural look. Want to test out Infinity, try our 3 gram tester bottle that is available in 10 colors. This bottle is also great to test the colors or excellent for airplace travel or for quick touch-ups. This special complex was developed by using nano fiber technology. These incredible fibers build upon your existing hair to offer dramatic density and volume while simultaneously offering undetectable coverage to your thinning areas. Infinity hair fibers apply in just 30 seconds or less. Infinity works great for both women and men.