¿¿¿ How to apply a neutral protein filler ???

Question

informed answers from an educated person in this field please.....Thanks

Answer 1

You can either apply it to your hair before coloring or mix it into the color and apply together. If you apply it before, pay the most attention to the most damaged areas of you hair (probably your ends). Also, a very small amount of moisture in your hair can help act as a filler.