N-Acetyl Glucosamine (NAG) is a natural amino sugar that is derived from shellfish or made synthetically. It is a skin-conditioning agent that is used in various skincare products. NAG has a similar chemical structure to hyaluronic acid and is considered a precursor to it.

• Skin brightening: NAG has been found to inhibit the production of melanin, which can help to reduce the appearance of dark spots and hyperpigmentation.

• Moisturizing: NAG has hydrating properties that can help to improve skin moisture levels, making it useful for dry or dehydrated skin.

• Anti-aging: NAG has been found to stimulate the production of hyaluronic acid and collagen in the skin, which can help to improve skin elasticity and reduce the appearance of fine lines and wrinkles.

• Skin barrier repair: NAG has been shown to help repair the skin's natural barrier function, which can help to protect the skin from environmental stressors and maintain skin hydration.

• Anti-inflammatory: NAG has anti-inflammatory properties that can help to soothe and calm irritated or inflamed skin.

Overall, N-Acetyl Glucosamine is a versatile ingredient that can be beneficial for a wide range of skin types and concerns. Its skin brightening, moisturizing, anti-aging, skin barrier repair, and anti-inflammatory benefits make it a popular choice for use in skincare and beauty products.