LPP treatment

My hair is dry and brittle from frequent dyeing and using a hair straightener, but if I wash it every day with a treatment containing LPP and take the time about once a week to apply it, wrap it in a plastic cap, and leave it on as a pack for about 30 minutes, my hair feels noticeably soft. I can definitely feel the difference compared to just using conditioner. Maybe it's because I'm more conscious of my hair as I get older, but I think treatments are a must for me now.