Firmness is lost when the skin falls short on all three counts of moisture, oil and nutrients, or when its metabolism is sluggish. To improve firmness, make a habit of applying treatment creams and face packs that will help provide these needed components. Also, actively use serums to plump out your skin from deep down in the dermal fibers.
Dust, air conditioning, and UV rays are all archenemies of your skin. Before going out, be sure to put on day cream to protect your skin from these perils, as they can result in dry or tired skin that lacks firmness and luster.
Foods that can improve firmness include meat, fish and dairy products, as they include proteins to boost cellular activity within the skin. Foods rich in vitamin C can also help.
The Japanese Skincare Revolution