Why? 80-85% of your hair is composed of a protein called keratin! So you got the point, hair is build with proteins and in order to strength them, protein treatment can come very handy.
Important : Dietary proteins are your hairs’ building blocks - they make your hair strong and help keep it in its growing phase. So basically, it all comes mainly from inside, without a healthy diet, it will be hard to achieve that healthy growth. ⠀
You can supplement through hair products, however, keep in mind that proteins like keratin and collagen are extremely large and need to be broken down so they can be absorbed by hair. Most proteins are too large to be effective, so hydrolysis is necessary for them to be broken down and absorb to your hair shaft, which is why the popular eggs and mayonnaise DIY protein treatments may not do what you think. Hydrolysis is a type of chemical reaction where water reacts with a larger molecule that is cleaved into two or more parts.
For example, Hydrolyzed wheat protein helps keep the hair elastic by controlling the rate of moisture loss from the hair. It is particularly helpful to help with damaged hair.
Keep that in mind when buying your next protein treatment ! ⠀