ZO Skin Health, a medical-institution-only skincare brand developed from the dermatological research of practicing dermatologist Dr. Zein Obagi, has renewed its G Factor Serum, a product focused on the skin’s foundation, the extracellular matrix. The upgraded serum contains biosynthetic growth factors and is designed to help skin look youthful and healthy. ZO Skin Health was created in 2007 to bring Dr. Obagi’s more than 40 years of clinical experience and dermatological knowledge into home skincare. Guided by the belief of providing beautiful, healthy skin to people around the world, Dr. Obagi has studied skin mechanisms in depth and earned strong support from clients including Hollywood stars and top models. The brand has since been adopted by many medical institutions and continues to develop advanced home-care products based on clinical cases and the latest dermatological science. The next-generation G Factor Serum is the result of more than 18 years of aging-care research. Dr. Obagi previously transformed skincare through retinol-based protocols, and this new development focuses on thinning skin, a common age-related concern. As skin becomes thinner, it becomes more vulnerable to external irritation, more prone to wrinkles, and less able to maintain elasticity. G Factor Serum applies biotechnology and growth-factor research to support the appearance of skin thickness, elasticity, smoothness, and flexibility. The “G Factor” in G Factor Serum refers to Growth Factor. Developed around the concept of increasing the density of aging skin, the gel serum addresses multiple aging concerns and contains biosynthetic growth factors that act similarly to human-derived growth factors. With age, both the epidermis and dermis weaken: keratinocyte proliferation decreases, turnover slows, old keratin accumulates, and the proliferative ability of basal-layer cells declines, reducing overall epidermal thickness. Collagen production also falls and fiber structures deteriorate, cau