Fibronectin

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[ Appearance ] White Powder

[ Function ]
1. Promotes skin repair and regeneration;
2. Strengthens the skin barrier function;
3. Delays skin aging;
4. Accelerates wound healing;
5. Soothes sensitivity and inflammation;
6. Aids in moisturization and nutrient delivery;

[ Application ]
In the field of cosmetics, fibronectin is widely utilized in products targeting anti-aging, skin repair, soothing and anti-inflammatory effects, as well as whitening and spot removal. This is attributed to its properties of promoting skin cell proliferation, repairing damaged cells, and stimulating the synthesis of collagen and elastin—thereby effectively improving skin quality and delaying skin aging.

About Fibronectin
Fibronectin is a naturally occurring, multifunctional glycoprotein found in the human body, widely distributed throughout the extracellular matrix and bodily fluids. In the context of skin health, it plays a pivotal role through mechanisms such as promoting cell adhesion, repairing damaged tissues, and enhancing barrier function; it is, therefore, a vital component for maintaining skin stability and a youthful appearance. It creates a microenvironment conducive to cellular repair, modulates inflammatory responses, and facilitates the orderly regeneration of damaged skin tissues. Certain skincare products containing fibronectin—or its biomimetic peptides—aim to leverage this biological activity to help ameliorate skin damage resulting from environmental stressors or improper care.
As a key glycoprotein within the extracellular matrix, fibronectin provides adhesion sites for skin cells. When the skin sustains micro-injuries, fibronectin acts as a guide, directing epidermal cells and fibroblasts to migrate toward the damaged area while simultaneously stimulating their growth and proliferation. This process is critical for the renewal of the epidermis and the reconstruction of dermal tissues, constituting a fundamental physiological activity essential for maintaining the skin's healthy state.
By mediating the adhesion between keratinocytes and the basement membrane, fibronectin helps maintain the structural integrity and compactness of the epidermis. A healthy epidermal barrier effectively locks in moisture—preventing excessive transepidermal water loss—while simultaneously acting as a defense against the invasion of external pathogens, allergens, and harmful substances. When the skin barrier is compromised, supplementing fibronectin or stimulating the expression of endogenous fibronectin can aid in barrier repair, thereby alleviating issues such as skin dryness and sensitivity.
As we age—or following prolonged exposure to external factors such as ultraviolet (UV) radiation—the expression of fibronectin in the skin gradually declines. This leads to a reduction in the structural support provided by the dermis, resulting in the disorganization of collagen and elastin fibers. Supplementing with fibronectin or its active fragments can stimulate fibroblasts to synthesize increased quantities of collagen and elastin, thereby enhancing dermal firmness and elasticity. Ultimately, this helps to mitigate signs of aging—such as skin laxity and fine lines—imparting a more youthful appearance to the skin.