It's probably not the vinegar that caused the damage, but the baking soda. Either way, your hair needs to be re-moisturized. Deep conditionings, protein treatments, leave in conditioner, oil, humectants, creams, mousse can all help. It takes up to 2 months to re-moisturize hair.

2c (3a potential?), M, ii, porous, good elasticity, APL, dark brown with a silver lining.
Love coconut oil, olive oil, and Everyday Shea!
HGs are simple, natural, and destroy frizzzz!!