Description of the CHI Infra Treatment Product The first hair care line of its kind to use Cationic Hydration Interlink and CHI 44 Ceramic is CHI Infra. By integrating essential moisture and strength into the inner structure of the hair, it gives it both moisture and strength. Hair is healthier, easier to manage, and has a higher sheen after using products. By strengthening the hair's internal structure and increasing its strength and elasticity, CHI Infra Treatment produces healthier, easier-to-manage hair. How to Apply Apply a generous amount of CHI Infra Treatment to the hair after shampooing and work it into the hair evenly. After two to five minutes, remove from hair and thoroughly rinse.