hello
Please ask if the Hydrolyzed Keratin (Liquid, Deodorized)
1. Can it be mixed directly with the shampoo / conditioner that I use regularly? For example, shampoo / conditioner, 250 grams, can I add 2.5 grams of keratin?
2. If yes, if mixed and then shaken, it can be used normally, right?
3. If not, enough to recommend a shampoo formula to nourish the hair, restore the fullness of damaged hair to make it shiny.
thank you