January Jones 'losing hair'

January Jones' hair is falling out.

The 'Mad Men' actress has been dying her tresses for several years and she admits it is starting to take its toll as her hair is coming out in clumps.

She told Grazia Daily: ''I have been every colour and now my hair is falling out in clumps. I'm going to have to shave it off and wear a wig.''

Throughout the years, January has been blonde, brunette, red and even pink but says her 16-month-old son Xander prefers her blonde.

She said: ''My son recognises me in photos when I am blonde. He says 'mama.' ''

When January first went brunette she admitted people close to her had no idea who she was.

The 35-year-old beauty said: ''I was suddenly invisible. Not just as a celebrity, but to my friends and family. I was like, 'Come on you guys, it's me!' ''