elastin
Collagen is the major insoluble fibrous protein in the extracellular matrix and in connective tissue. It’s found in our muscles, bones, skin and tendons. Collagen production naturally begins to slow down as we age. Making wrinkles, sagging skin and weaker cartilage in the joints
It gives you wrinkles, NO.
There are lots of things in skin. Yes, protein is part of it.
a blowout is when the skin has been pushed from the inside of your ear. if you have a little bit of skin on the back of your ear around the stretching you should downsize and wait until it has healed. also your ears should not bleed while stretching :)
skin i think
The tissue and fat is stretching or gaining. Also the skin is stretching. It is normal so don't worry.
The skin on the belly hands or feet may itch during pregnancy because of the skin stretching.
Collagen
skin
keratin
Keratin
Of course skin has proteins, how else would we survive? The sun and many other sources of things give our skin alot of protein.