The present invention relates to a cosmetic basic composition comprising hydroxypropylmethylcellulose (HPMC) modified with C15-C20 alkyl ether groups as thickener, Oleosomes and water, wherein the Oleosomes comprise at least one cosmetically active substance. The invention also relates to the use of the cosmetic basic composition in products of decorative cosmetics, personal care cosmetics and/or skin protection cosmetics.