What are glycosaminoglycans (GAGs)?

Glycosaminoglycans (GAGs) are large, complex carbohydrates that play a crucial role in the skin's structure and function. They are known for their ability to bind water, which is essential for maintaining skin hydration and elasticity. GAGs, such as hyaluronic acid, are found in the extracellular matrix and provide support and cushioning to the skin cells. Their water-binding capability is particularly important in promoting volume and turgor, which contribute to the overall youthful appearance of the skin.

GAGs are not small or large protein molecules; rather, they are polysaccharides composed of repeating disaccharide units. They do not function as hormones, nor do they relate to energy storage in the way fatty acids do. Their primary role is in maintaining the structural integrity and hydration of the skin, highlighting their significance in skincare and dermatological health.