What is the ruling on wearing artificial nails and eyelashes for beautification, and is there a difference between the ruling on wigs and artificial eyelashes in terms of them not being attached to the original hair but rather placed on top of it?

Scholarly opinions differ regarding the ruling on using artificial nails, eyelashes, and wigs for adornment. The preponderant view is that such artificial adornments are prohibited unless they are for medicinal purposes or to correct a defect. They are not permissible for pure adornment, as they may resemble the prohibited hair extensions (wasl) and constitute an alteration of Allah's creation. Furthermore, they may have health detriments and involve deception and fraud. The Permanent Committee has explicitly stated the impermissibility of using them for adornment, while some scholars have elaborated on their permissibility if they are for correcting a defect or for a compelling need.