The invention relates to a marine-based cosmetic product provided for regenerating and stimulating skin cells. The product is comprised of 0.01 to 50 wt. %, with regard to the total mass, of an active ingredient combination made of a) a product of an enzymatic extraction process of sea plankton Artemia salina, whereby the extraction product is comprised of phosphorylated nucleotides with the main components diguanosine-tetraphosphate; b) D-myo-inosite-1,4,5-triphosphate; c) glucan; whereby the ratio a:b:c is in the area of 1:0.1-50:0.1-30; and of a content of additional cosmetic active ingredients and supporting materials ranging from 99.99 to 50 wt. %. Use of the product results in a synergetic effect against aggressive environmental influences by naturally strengthening the immune system of the skin, stimulating skin regeneration and, at the same time, providing ultraviolet protection with the assistance of improved keratin barriers.