

Collagen
Collagen dominates about 70 % of dermis and is a kind of protein that stay in the dermis. It’s what gives skin their strength and elasticity. They also play an important role is forming bone or vessels.
Elastin
Elastin dominates about 2% of dermis and is a kind of protein that aids in skin’s elasticity and connective tissues. It often connects collagen and another supportive protein to give skin its texture and shape.
Hyaluronic acid
Hyaluronic acid (HA) is a component found throughout the body’s connective tissue. HA is the main component of what gives your skin structure, and is responsible for that plump and hydrated look. 1mg of HA can store 6L of water and they exist in various places such as eyes, joints and etc.