To restore part of the keratin protein to the outside of your hair strands, use a protein-rich conditioner like Toppik Hair Building Conditioner.
If the protein molecules in [the products you’re using] are giant, they might potentially weigh the hair down and make it seem coated.
Hair feels sticky, dry, damaged, dull, frizzy, and you may have more significant hair loss due to breaking if you don’t get enough protein.
Of course, you can always get a keratin treatment. However, if not done correctly, this type of treatment might cause more harm to your hair.