Disclosed is a novel proteoglycan-containing material, which has novel use applications and/or an excellent effect. Specifically disclosed is a proteoglycan-containing material which is produced from a fish cartilage and contains an acidic sugar component having a molecular weight of 2000 kDa or more. The proteoglycan-containing material has effects advantageous for skin moisturization and anti-aging, such as an excellent effect of proliferating skin fibroblasts, an excellent effect of enhancing and improving the skin barrier function, an excellent effect of enhancing and improving skin collagen production capability and an excellent effect of inhibiting the thickening of dermises.