hairbase

[dann87]

isit possible to use lelutka hairebases on a catwa head 

[Rolig Loon]

A hairbase applies to your system avatar, not to your mesh head. If you are using alpha masks to hide your system body, you won't see a hairbase anyway.

[Lillith Hapmouche]

If the LeLutka base doesn't come with a Bakes on Mesh option, usually a system tattoo layer, then no, no chance.

An Omega applier would work, but the brand specific appliers aren't interchangable.

[Dean Haystack]

The LeLutka hairbase that comes in the head is applied to a proprietary mesh with its own UV map, not the standard SL UV map.
That's why it looks so much better, because it actually has a higher pixel density than what you can achieve when you comply with the standard UV map.

So no, you cannot use it in any other head besides the LeLutka, much like Aesthetic skins can only be used in Aesthetic avatars.