In a desperate bid to get their hands on a new eyelash enhancing serum online, thousands of Brit women brought the Boots website, which sells the product, crashing down.
Rapid Lash Eyelash Enhancing Serum claims to boost lashes by up to 50 per cent when applied nightly.
It was sold at a rate of one a minute at Boots stores nationwide.
More than 1,000 women had already registered their order for the 39.99 pounds serum, which is clear eyeliner, on an online waiting list while others dashed to the shops before work.
"The response has been out of this world with women telling other women that it has worked for them," the Daily Express quoted spokeswoman for the brand as saying.
"RapidLash is particularly good for women with sparse lashes or even eyebrows and can really help to boost their self-esteem," she added.
The ingredient is prostaglandin, a compound, which helps cells to grow and repair, and which is also used in treating the eye condition glaucoma.