In a recent interview with Allure, she revealed that the secret sauce is Joico’s Defy Damage Protective Shampoo. Hudson is a new spokesperson for Joico—specifically its Defy Damage line.

Selena Gomez's hair stylist, Renato Camparo, shared a product breakdown on his Instagram, and Selena's stylish do was created using all Joico styling products. The exact shampoo and conditioner ...