CHI: Cationic Hydration Interlink. Silk reconstruction complex. Paraben free. Silk Reconstruction Complex - CHI Silk Infusion is a rich leave-in treatment enriched with silk along with wheat and soy proteins that will penetrate and help strengthen the hair, while providing incredible softness, manageability and shine without build up. Not tested on animals. Dispose of properly. Farouk Systems Group, USA. www.farouk.com. Made in the USA.