The 40-year-old actress - who has daughters Sam, seven, and Lola, six, with ex-husband Charlie Sheen as well as adopted baby Eloise - has teamed up with famous salon stylist Cristophe for the range, which will include shampoo and conditioner.
Announcing the collection, she wrote on her blog: "I've been hard at work on this project for the past few months and I am so excited to share it with you.
"I teamed up with hairstyling guru Cristophe to create The Denise Richards Volume Extend hair care line, which strengthens and protects hair from the damage continuous styling can cause, boosting the hair's health and volume."
Denise promises the five-product range will make hair thicker and more healthy-looking.
She added: "The line - which consists of shampoo, conditioner and three styling aids - is an entire system that is focused on beautiful, healthy-looking hair. The shampoo's rich lather is the first on the market to actually condition the hair, and the advanced technology in the conditioner penetrates and plumps the hair shaft, increasing its diameter for thicker hair."
The collection will launch later this month.