SEQUOIADENDRON GIGANTEUM STEM EXTRACT.

This extract exerts its benefits through a diverse range of mechanisms within the skin. It actively inhibits MMP-1 activity, which helps minimize the degradation of collagen and elastin, thereby reducing fine lines, wrinkles, and sagging. Furthermore, it modulates lipoxygenase activity to decrease sebum production, offering advantages for oily skin types, and suppresses tyrosinase activity to diminish hyperpigmentation, sun spots, and uneven skin tone. The extract also functions as a powerful antioxidant, combating oxidative damage and boosting endogenous antioxidant enzymes such as SOD and catalase. It contributes to enhanced skin firmness by elevating proteoglycan and collagen synthesis rates and provides a moisturizing effect by improving water retention and lowering transepidermal water loss. A notable soothing action is also observed through the reduction of inflammation mediators. Specifically, shikimic acid, a key component, reprograms dermal fibroblasts into skin-derived precursors (SKPs), fostering skin regeneration, accelerating wound healing, and supporting dermal reconstruction. It also increases epidermal stem cell markers and promotes collagen deposition within the dermis, collectively safeguarding barrier function and encouraging epidermal renewal.