this research is to study the effect of Adipose Derived Stem Cells on Survival of Fat as Filler

Skin aging is a complex biological process.The physiological changes associated with aging of the skin are manifested in xerosis, dramatic loss of skin elasticity due to damage to collagen and elastin fibers; as well as barrier function, modification of rhytides and deficiencies in the regenerative property of the skin. All of which ultimately result in thinning of the skin, malar fat atrophy and pigmentary changes. Autologous fat grafting or lipo injection containing stromal vascular fraction (SVF) acts like ideal soft tissue filler for facial filling and rejuvenation. It leads to progressive improvement of the skin texture, elasticity, and color over a few months, therefore adipose tissue seems to be not only a simple filler but also a dynamic filler with two types of different and supplementary effects, the volumetric effect and the regenerative effect.Cell assisted lipotransfer (CAL) is a technique that combines aspirated fat with concentrated ADSCs in the stromal vascular fraction (SVF) of the lipoaspirate. This technique could enhance the survival rate of the transplanted fat and leads to better cosmetic improvement

Inclusion Criteria

1. Clinically diagnosed facial skin aging.
2. Glogau photoaging score II and III.
3. Body mass index ≥20 with adequate abdominal or other subcutaneous adipose tissue accessible for lipoaspiration.

Exclusion Criteria:

1. History of keloid formation.
2. Any coincidental chronic illness (e.g. metabolic, autoimmune or endocrinal) or malignancy.
3. Any bleeding or coagulation disorder or recent use of anticoagulant therapy.
4. Active infection.
5. History of any previous aesthetic procedure on the face within the past 6 months.
6. History of intake of anti-aging systemic or topical medications within the previous 3 months