There are many easy methods to identify them.

Burn the mink lashes; there is a smell of burnt feather, a power after burnt, no black smoke.

Burn the synthetic lashes; there is solidity after burnt that can not grint it, black smoke and oil drop.

For more details, pls refer to the website to check 3D mink fur lashes for sale Or if you are interested in, have a try in person to see what will happened.