I started out with a affirm sensitive scalp (no-lye) relaxer and due to the dryness switched to lye. With each touchup and trim, my hair got silkier and the dryness began to subside. Now the very ends where the no lye is is so much more noticeable to me, because it can get really dry, but I have found ways to keep the dryness away. I always base my scalp thoroughly before I go to the salon and am based again with the gentle assurance. My scalp is usually tender for the first week post touch up. I use aloe vera gel mixed with jojoba oil, or neosporin, and I haven't had any problems outside of the normal. My last touchup was with a new stylist and she left the relaxer on for less time. I had no tenderness/burning feeling, but my hair wasn't as straight as I was used to. It had a wave at the root. I will be waiting longer, to see as I get more newgrowth if my hair is straight enough. I do like not burning, though and I know it is healthier to not relax bone straight. HTH