I've had one of these brushes for over a year now, and love it, so when I saw it on eBay here for just £2.69, including P&P, I had to buy another. I paid around £4 for my other one, but it was still a bargain compared to the £9.99 Boots want for it. I've bought quite a few EcoTools brushes from eBay over the years, and think they're authentic. Even if they're not, they're very soft and of great quality! I use this particular brush for powder, blush, and bronzer, so would definitely recommend it.