Beware the Brazilian blowdry: As Jennifer Aniston is forced to chop her hair short, experts warn of side effects of controversial treatment

News today that Jennifer Aniston cut her hair short because it was damaged by a Brazilian-style blowdry has not come as much surprise to industry experts.
The controversial treatment, which uses a combination of formaldehyde and keratin to keep locks straight for up to three months, is considered the answer to a frizzy-haired girl's prayers.

But top New York hairstylist Oscar Blandi, who counts Julianne Moore, Uma Thurman and the Olsen Twins among his clients, warns that one should proceed with caution if considering it.

Proceed with caution: Top hairstylist Oscar Blandi wouldn't recommend a Brazilian blowdry to a client who is constantly coloring her hair because the hair might not be strong enough to bear the intensity of the treatment

Cautionary tale: Jennifer Aniston was forced to cut her hair short (right) after damage from a Brazilian blowdry

'I think the treatment on its own is generally effective, but you have to make sure the condition of the hair is right for it,' he told MailOnline.
'I usually wouldn’t recommend it to a client who is constantly coloring her hair because the hair might not be strong enough to bear the intensity of the treatment. I think the key is testing a small part of the hair first, before doing the whole head.'