NEW YORK: Honest Co, co-founded by Hollywood star Jessica Alba, is denying a news report that said its laundry detergent contains an ingredient that it promised its customers that it would never use.

Alba helped found Honest Co about five years ago. It has grown rapidly, selling diapers, soap, lotion and cleaning products that it says are free of “harsh chemicals.” Late last year it started selling lip gloss, blush and mascara under the brand Honest Beauty.

The Wall Street Journal, in a report posted to its website on March 10, said it tested Honest Co’s detergent at two laboratories and found it had sodium lauryl sulfate. On its website, Honest Co promises that it doesn’t use SLS — a common ingredient in other brands — because it can cause skin irritation.

It said on March 11 that its detergent contains sodium coco sulfate instead, an ingredient it says is a “gentler alternative”. The company said it conducted “rigorous testing” and said the Journal’s article is wrong and “reckless.”

“I am extremely disappointed by the recent Wall Street Journal article full of misrepresentations,” Alba said in a blog post. The Journal said on March 11 that its report “is accurate, fair and meets” its standards.