Two Distinct regions of the integumentary system: epidermis & dermis. Underneath dermis is hypodermis (superficial fascia), also called subcutaneous tissue which is composed of loose connective tissue (mostly areolar and adipose).
A collagen facial is a treatment designed to restore the depleted collage in your face and rejuvenate your skin. Ultimately, a collagen facial will slow down the aging process by replenishing your body's natural proteins through external applications.
Any treatment aimed at increasing collagen production and increasing skin thickness can work to improve the appearance of pores. Options include fractional laser resurfacing, intense pulsed light (IPL), and medium depth or deep chemical peels. Any treatment must be maintained with a good home care regimen.