Non-silicone leave in treatment?

Nothing you put on your hair will actually heal it.  It can smooth and condition your hair, make it look healthier, but any damage that's done to your hair is there for good.  The only way to get rid of it is to cut off the damaged parts.

Something that works well for me is taking a small amount of aloe vera gel and mixing it with a drop or two of jojoba or coconut oil .

I have never tried using it alone but I am pretty sure it would work.  On the bottle I own it says you can use it as a hair gel but it acts more like a leave in conditioner.  I really like it though, you don't need a lot and it makes my hair feel really nice.  I would try to get one that is 100% aloe vera gel without any dyes, fragrance, etc.  And if you don't like it in your hair at least you can still use it on your skin.