I recommend Perfect Serum.

The serum contains as many as 7 nutrients

It's a product..

By dyeing or frequently perming

The hair is severely damaged

There are many cases where it splits...

After shampooing, apply treatment and leave on for at least 2 minutes.

You need to let it sit and then rinse it so it can soak into your hair.

I have a lot of experience marching...

I highly recommend it.