Sophie Guidolin doesn't look like this anymore! Controversial fitness influencer debuts shock new look as she promotes questionable detox

Bodybuilding influencer Sophie Guidolin has debuted a striking new look - and it has nothing to do with her physique. 

The mother-of-four, 37, took to Instagram Stories on Friday to reveal a dramatic hair makeover, sporting a head of ringlet curls. 

In the video, Sophie was seen posing in various garments from Kmart's new winter collection, but fans were more focused on just how different Sophie looked without her usually straightened locks. 

'I love your hair natural!' one user cooed in the comments. 

'Love the natural hair coming back babe,' another agreed. 

Earlier on Friday, Sophie raised eyebrows by promoting a controversial new wellness trend. 

The online health coach took to Instagram on Friday to announce that she would be starting a 'metal detox' to 'boost her immunity', encouraging her followers to get in touch if they would like more information or want to join along. 

She accompanied this with an image of herself posing in the mirror wearing bright red activewear that highlighted her taut torso and muscular arms. 

A 'metal detox' - often referred to online as a 'heavy metal detox' - claims to remove harmful metals like mercury, lead and aluminium from the body.

Influencers and alternative health advocates typically promote it as a way to boost immunity, improve energy levels, sharpen brain function and even clear skin. 

These detoxes are usually packaged as protocols involving supplements, herbal tinctures, special diets, or products like activated charcoal and bentonite clay.

The idea is based on the premise that modern life exposes people to a build-up of toxic metals through food, water, pollution or household products.

Symptoms such as fatigue, brain fog, headaches and digestive issues are often attributed - without testing - to this supposed accumulation.

As a result, followers are encouraged to undergo detox regimens to 'cleanse' their systems.

However, in medical terms, the body already has its own detoxification processes.

The liver and kidneys continuously filter and eliminate waste, including trace amounts of metals, without the need for special diets or supplements. 

Genuine cases of heavy metal poisoning do occur, but they are relatively rare and require proper diagnosis through clinical testing, followed by supervised treatment such as chelation therapy.

Because of this, many health experts are sceptical of over-the-counter 'metal detox' programs, particularly those promoted online. 

While some elements - like eating a balanced diet - can support overall health, the broader claims around flushing out metals and dramatically boosting immunity are not well supported by scientific evidence.

Sophie's detox announcement comes after she was caught photoshopping her leg muscles in an embarrassing Instagram faux pas last October. 

At the time, Sophie shared a selfie via Instagram that showed her bent over in a mirror as she flexed her hamstrings and quads. 

But an odd detail next to her leg left the wall slightly warped, suggesting the image had been altered to exaggerate the size of her leg muscles.

The mother-of-four shared the photo during a Q&A on her Stories, after a follower asked whether she'd compete in another bodybuilding event.

'Maybe,' she answered. 'I mean I only just competed in November - so like under a year ago lol. But I don't do it for clout - so my ego is never the reason behind my why.'

'I want it to be [authentic] to better myself.' 

Sophie then tagged her company, The Bod, as well as the International Fitness and Bodybuilding Pro League in her picture.