Many people wonder why it is worth adding another step, like a growth factor, into their regime. Growth factors create a biochemical pathway that promotes skin tissue repair and regeneration. While the skin is being repaired, collagen and elastic fibres are being created to give your skin the softness and plumpness. Overall, using a growth factor daily will reduce fine lines, age spots, skin roughness, and create tightness and smoothness. It not only works great on the face but as well as on the body.