can this product be used on beards ?

Just for Men has two products that I use together. They have a "Beard Wash" that darkens your beard, and they have the "shampoo" that does the same thing to your hair. I have found that they work really well together. You use both and just let them sit for 2-3 minutes. I went from being almost white grey in my beard to having it match my hair color better and for both my hair and beard to match and be significantly darker than they were before.

Can i use my regular shampoo on the days i am not using gx (during maintenance phase)? will this make the color fades away?

You can use this shampoo as often as you like. I usually only have to use it once a week or so. And, you can use regular shampoo on alternate days. It won't wash away.

Puede usar para damas

Hi Yudith. Control GX can be used by women. Great question!

Does this need to be shaken? There seems to be dark and light mixed in to the shampoo and all the dark portion is gone.

While the color of the mixture may vary, there is no need to shake the product. Control GX may change color during storage; however, the shampoo will still be effective. Please be sure to store the product with the cap face down and securely closed to prevent dark streaks from occurring.