I don't know what it does to hair, but it whitens plastics and makes them look like new without scrubbing. Only with the help of the sun. Highly recommended.

I placed an order before Christmas which I canceled for personal reasons. I contacted the company but they referred me to the website where I am not receiving any responses. They have not refunded me the money

I got it to whiten some plastic parts on an old air-conditioner, so I didn't use it on my hair, just to clarify. It whitened the air conditioner perfectly, did its job well, and has a high concentration.

It opened up the natural color of my hair without being particularly troubled and they remained soft and hydrated