The corrugator muscle is responsible for the appearance of these wrinkles. When the muscle contracts, the skin follows, leading to dynamic or ‘movement’ wrinkles. Static or ‘at rest’ wrinkles are due to the gradual breaking down of the skin’s elasticity as it follows the muscle.
It is possible to intervene at the first signs of appearance of lion's wrinkles, whether static or dynamic. The filling injections (1) can be done as soon as the patient feels embarrassed by this sign of old age.
(1) A filler beneath the muscle determines the stretching, contraction weakens. A filling product between the skin and the muscle reduces the movement of the skin due to muscle contractions.