Joico k-pak Hun xx if you can't get them my next fallback for hair extensions is wella enrich for thick course dry hair. But that's too heavy on my hair.
Joico is excellent on both. They have shampoo conditioner, reconstructor, hydrator (reconstructor and hydrator only used once a week for 5 mins each, or even couple weeks depending on condition of the hair, colour therapy styling oil, and that's all I use, they do have loads more to chose from and their smooth cure range is also good on hair extensions though its too strong for my hair again and sends me greasy as its designed for thick course hair. Mines medium and smooth (ish).