A crowdfunding campaign for a razor blade which its US creators claimed could remove facial hair with a laser beam has been suspended by Kickstarter.
The device had attracted more than $4m (£2.6m) in funding – but reportedly did not have a working model.
Backers received an email from Kickstarter saying the Laser Razor was “in violation of our rule requiring working prototypes of physical products that are offered as rewards”.
It has now been relisted on Indiegogo.
The gadget, by a firm called Skarp Technologies, based in California, raised nearly $40,000 in pledges in its first four hours on the rival crowdfunding platform.
On its Facebook page Skarp told its supporters “not to worry” and promised that the Laser Razor would be available in the spring.
“They have been incredibly helpful and they believe in the Skarp Razor as much as we do,” the firm said of Indiegogo.
Last week, Skarp released a nine-minute video on Kickstarter, addressing backers’ concerns about the product, which included safety and battery life.
Some people who commented on the original fundraising page had expressed worries about the firm itself, and a thread on community website Reddit questioned the technology, describing it as “far-fetched”.
Oliver Pearce-Owen, chief information officer of Skarp told the BBC Kickstarter’s decision had “left tens of thousands of people disappointed”.