A general idea or understanding of something: the concept of inertia; the concept of free will. See Synonyms at idea. 2. A plan or original idea: The original concept was for a building with 12 floors. 3. A unifying idea or theme, especially for a product or service: a new restaurant concept.
Upper lip twitching is caused by a sudden involuntary contraction of the muscle or muscle fibers in the lips or as a result of direct stimulation or injury, according to Health Hype. Lip twitches also result from tics, spasms and tremors. They are usually benign, but sometimes indicate an underlying condition.
Another cause of upper lip wrinkles is exposure to toxins in the environment. UV rays from the sun contain free radicals that destroy skin cells and collagen, which causes sagging skin and lack of elasticity.he most common cause of upper lip wrinkles is natural aging. As people age, their skin loses elastin and collagen, which give skin its firmness and ability to snap back into place.