The last time I was natural, when I finally decided to relax again, I went to the best stylist I know, and she picked Vitale something, I don't recall. However, I relax at home for the most part, so I've switched a few times within the Vitale brand. Once, I used the one with "body" in the name, and it burned my scalp, and I'm not even that sensitive usually. I've been using Vitale Sensitive Scalp Relaxer (I just ran to go look at the box, it says "the new definition for silky, straight hair that's never dry") for a while and haven't had any problems.
I like that they include a pre-foundation conditioner (for before the perm) and a corrective conditioner (for after) in the box. Also, the company makes a "between the perm and the neutralizer" thing, called 'Revive Positive Conditioner' which I just used for the first time, and I loved it.
*btw, as I was typing this, I had to go look through all my perm stuff, and, lo and behold, I discover a half-full, full-sized bottle of Vitale Neutralizer, and I thought I was out! I almost bought some more yesterday! So, thank you, OP, for making me look through my junk.