I did mine after my rinse out (Deva one conditoner) then I applied the ACV and after I rinsed that out I put in a leave in (Tresmme Naturals) and some oil to seal and I was fine. Here is the picture to prove it ^^ it may work differently for you try both ways
Attached Thumbnails
ACV rinse - BEFORE or AFTER rinse-out conditioner?-jan-30-acv.jpg  
3b hair
normal porosity
medium density
fine/med. strands
Avatar Pic: March 20th 2013

Co wash: Suave,As I am Co-wash, alba drink me up coconut milk Tresmme Nat., Foxy curls cond.
DT: Organics Cholesterol, Tea-tree oil, Hot 6 oil, Carols Daughters Khoret Amen, Tui Oil
LI: ? Vo5 Coconut
Style: Ecostyler (HG?)
Oils: Vitamin E, Olive Oil, Tui Oil
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