So I just watched a video on YT that reported Hello Hydration contains sodium hydroxide. I had no idea and I use this when I am CO Washing and stretching. I was so amazed at how soft it made my hair and how it was so easy to detangle with it. Now, finding out it has SH has turned me off. I had read a couple of reviews where some African-American women stated it made their hair fall out in clumps. I would detangle in the shower and I would have a nice amount of shedding. I don't know if that was because I would always CO wash and not detangle even on dry hair. So when I would finally wash and condition, I just figured it was hair from days of not combing and leaving it twist out. I can't say if it was due to the conditioner. I imagine leaving conditioner in for a while with sodium hydroxide could be harmful. I have two big jars I purchased from Walmart. I hate to not use it anymore.