Best suggestion I've heard is GVP conditioning Balm from Sally's. it's around $5 for a decent sized bottle - 12oz at least. (If there's not a Sally's near you you can order it through their website.)

Vo5 condish I've used and loved is the Shea Cashmere, but I can't say it compares to OneC.
Originally Posted by Jas76
Thanks! I know, I probably won't match the One C, I just love it!! I have the GVP and wasn't thrilled with it as a leave in but I don't think I used enough. I really like to weigh it down which is opposite of most.