A mum says she went from Casper the Friendly Ghost to Princess Fiona from Shrek when a fake tan fail dyed her skin green.

Kerry McRobb decided to indulge in a pamper evening and wanted a "golden glow", so dug out an old bottle of St Moriz 'Darker than Dark' fake tan.

During the application process, the 20-year-old noticed there seemed to be a green tinge to the treatment but didn't think much of it - until the colour got "worse and worse" as it dried.

Kerry, from Livingston, West Lothian, managed to see the funny side and send photos of herself looking mortified to friends, while also sharing it on social media with the caption: "This is my sign to stop fake tanning and get back to sunbeds asap."

Get the news you want straight to your inbox. Sign up for a Mirror newsletter here.

The children's hospital support worker thinks the tan went out of date after she hadn't used it in more than a year and said: "I'm very pale without fake tan, I look like Casper the friendly pale ghost.

"I put the fake tan on as I wanted a golden glow, I used St Moriz Darker than Dark fake tan.

"Before I was pregnant I would put it on every so often when I went out. Not like in school when we had Tan Thursdays - everyone would be stinking of digestive biscuits.

As I was putting it on I noticed it was a little bit green and as it was drying it got worse and worse.

"I put two layers on and left it on overnight. I first spotted the khaki green colour on my phone's camera that night, I was a bit taken aback.

"I shared the pictures with my friends, they found it funny. I said I looked like Shrek but I'd like to think I was more Princess Fiona."

When she woke up the next morning, Kerry was thankfully able to scrub off the green tinge in the shower.

She added: "I hadn't fake tanned in over a year because I was pregnant, so it was probably out of date.

"I wasn't concerned as I knew it would come off, it was very funny."

St Moriz has been contacted for comment.