I tried thousands of volumizing shampoo and almost anyone worked, so I'll help you save your money and invest in products that are really worth buying. I know these might be a little expensive but I can promise you that you will use little product an...
I prefer masks over conditioner because they are more light and they doesn't weight down your hair. You just need to choose the right mask!
This step depends on what product you like to use. I usually use a volumizing mousse or a volumizing spray on the roots.
Treatments takes time and constance and really depends on your type of hair and scalp. I tried a lot of treatments but very few really worked.
Supplements should be chosen based on personal deficiencies, I recommend you take blood tests before choosing the right supplement. Otherwise you may not notice the difference and supplements may be ineffective on your hair.