[delecti]

I've done laser hair removal, and while it does hurt like a bitch, and does only work on dark hairs, the claims were that the razor would use a wavelength that targeted all hair (I don't know enough to say that's not plausible), and presumably they'd use a short enough focal length to only hit exposed hair, rather than the normal method of focusing on the hair below the surface.

Doesn't get around the smell, power requirement, or heat output though.

[frandroid]

If there already was a wavelength that targets all hair colour, they would use it already with other hair removal treatments, you'd think.

[delecti]

True, that is indeed another hole in their story.

[TheOtherHobbes]

The other is that there's a critical difference between hair cutting - which is what this claimed to do - and hair follicle killing, which is what laser and IPL treatments do.

Existing treatments are supposed to kill follicles permanently.

This suggest it trims hair but doesn't leave you permanently beardless.

They can't possibly work the same way.

So I think KS did the right thing. Too many people have been using it in scammy ways, and that makes it less effective for anyone with a genuine product, talent, or idea to sell.

Having said that - the scams only work when you have a market full of people who don't know enough about basic science or simple online research to check unlikely claims. And that's been the real problem with KS, IGG, and the rest - it's just too damn easy to make money from a few hours of 3D rendering to create a shiny sketch of a product that can't possibly work, or (at best) can't possibly be developed without far more investment.