(a) As antibodies : Gamma globulins are used as an antibodies. These are used in the treatment of snake bite, tetanus etc
(b) Human albumin : These are used in liver serosis nephrotic syndrome.
(c) Polypeptide hormones : Used in treatment of hormone deficiency disease, like diabetes, dwarfism etc.
(a) Cosmetic uses : (i) Egg protein is used for skin tightening.
(ii) Keratolytic protein are used in softening of hard skin.
(b) Gluta protein enables glucose transport into cells