The COSRX Hydrium Centella Aqua Soothing Ampoule is a topical skincare product designed to nourish and hydrate the skin. This ampoule contains a combination of key active ingredients that work synergistically to provide soothing and calming effects on the skin. One of the main active ingredients in this ampoule is Centella Asiatica extract, which is known for its anti-inflammatory and wound-healing properties. Centella Asiatica contains compounds such as asiaticoside, madecassoside, and asiatic acid, which have been shown to promote collagen synthesis and improve skin barrier function. Additionally, the COSRX Hydrium Centella Aqua Soothing Ampoule contains hyaluronic acid, a powerful humectant that helps to retain moisture in the skin. Hyaluronic acid has the ability to hold up to 1000 times its weight in water, making it an excellent ingredient for maintaining skin hydration and elasticity. The ampoule also features panthenol (Vitamin B5), which acts as a soothing and moisturizing agent for the skin. Panthenol is known to improve skin barrier function and enhance wound healing. The pH of the COSRX Hydrium Centella Aqua Soothing Ampoule is formulated to be around 5.5, which is close to the skin's natural pH level. This helps to maintain the skin's acid mantle and prevent disruption of the skin barrier.