The "Dhoom:3" star launched the brand's 6 Oil Nourish, which includes Nourishing shampoo, Nourishing conditioner and 6 Oil Nourish Extraordinary Oil, here Tuesday.
"I'm elated to have embarked on my journey with L'Oreal Paris with the launch of 6 Oil Nourish. I believe 6 Oil Nourish is a fantastic range of hair care products and can truly work wonders for hair that needs to be nurtured and nourished," Katrina said in a statement.
She has endorsed a mango drink and depilatory cream brands, among others.