Revifol Reviews – Do Revifol Pills Really Work? Revifol equals fabricated with pharmaceutical-grade components that blends the higher degree of Biotin , equally two additional important good fabric components-Silica and L-Cysteine. The EXTENDED-RELEASE nutritionary supplement is an essential daily need for those with dry, brittle, and weak hair. Hair that was once lifeless and dull is now lustrous, soft, and perfectly healthy. In most cases, improved hair strength and growth should occur in six to eight months of continued use but results may vary based upon the individual.