Milky/white
The Red Skull's head is red due to an experimental serum that caused a severe reaction in his body, permanently altering his appearance. In the comic books, the serum was designed to enhance his physical abilities but ended up turning his skin red and skull-like.
"Collagen serum" refers to a type of beauty care ingredient that is used to help reduce the appearance of wrinkles and crow's feet. It can be found in products like Dermactin-TS.
Serum
low calor
Serum Aspartate Aminotransferase
Serum Glutamic-pyruvic Transaminase
make an appearance
Serum is serum
Serum Serum
I'm not sure if you mean serum or Syrian.A Syrian is a person from Syria.A serum is an amber-colored, protein-rich liquid that separates out when blood coagulates.
what does it mean when my IGM is low at 28L