Nicole Richie loves the "amazing" power of make-up. (Pic: Instagram)

Nicole Richie loves the "amazing" power of make-up to transform and enhance.

The 36-year-old designer - who has children Harlow, 10, and Sparrow, eight, with husband Joel Madden - thinks cosmetics are great for transformation without hiding who a person really is.

She said: "Make-up has power. You can transform yourself into another being, which I think is really amazing. 

"I know women who feel most like themselves when they have a full face of makeup on and that makes them feel strong about themselves.

"We as women have every tool that we need in order to feel our strongest, best self. I don't think that makeup has to hide you. I think it can accentuate what you already have."

Nicole loves how makeup can transform you into another being. (Pic: Instagram)

But Nicole feels most empowered by fashion and her choice of clothes is very much influenced by her mood.

She told People Style: "My fashion choices are extremely emotional.

"I am somebody who likes a lot of colour around me. It elevates me. I'm very passionate about colour and I know that it has a direct effect on the energy that I have around me. 

"And so when I'm putting something on, that definitely changes the way that I feel and the way that I approach the day."

And at the moment, the 'Candidly Nicole' star's beauty focus is on her hair and she's enjoying letting her natural locks "breathe".

She said: "I really love my hair ... I was bleaching it, and coloring and doing everything so I just needed to give it a break to let it grow. I'm not shooting right now so I'm not colouring it, I'm just letting it breathe. It feels really nice.

"Right now I really do feel 100 percent in my own skin. I feel the most like myself. I could cut it off in a week, who knows? All of my hair decisions have been very much on the fly. But right now I'm really just enjoying living."