Cosmetic formulations

In a skin cosmetic composition comprising polyether pendant dimethyl polysiloxane and linear polyether-polysiloxane-polyether block copolymers, the improvement which comprises a composition having smooth touch when applied to the skin, non-tackiness, wetness, brilliance, durability on the skin or retention of the beneficial effect the other components and from about 1 to about 37 weight percent of a linear, nonhydrolyzing polysiloxane-polyoxyalkylene block copolymer having the formula:

• ([Y(R.sub.2 SiO).sub.a R.sub.2 SiYO][(C.sub.n H.sub.2n O).sub.b ]).sub.c
• wherein R represents a monovalent hydrocarbon radical;
• n is an integer of 2-4;
• b is an integer of at least 4;
• c is an integer of at least 4;
• a is an integer of at least 5;
• Y represents a divalent organic group selected from the group consisting of
• (i) --R"--
• (ii) --R"--CO--
• (iii) --R"--NHCO--
• (iv) --R"--NHCONH--R"'--NHCO-- and
• (v) --R"--OCONH--R"'--NHCO,
• wherein R" is an alkylene group selected from the group consisting of ethylene, propylene, butylene, and mixtures thereof and R"' is an arylene group selected from the group consisting of C.sub.6 H.sub.4 --, --C.sub.6 H.sub.4 CH.sub.2 C.sub.6 H.sub.4 --, --C.sub.6 H.sub.4 C.sub.6 H.sub.4 --, --C.sub.6 H.sub.4 CH(CH.sub.3).sub.2 C.sub.6 H.sub.4 --, and mixtures thereof;
• which divalent organic group is bonded with an adjacent silicon atom by a carbon-silicon linkage and with a polyoxyalkylene by an oxygen atom;
• the average molecular weight of each siloxane block is about 400 to about 10,000;
• the average molecular weight of each polyoxyalkylene block is about 300 to about 10,000;
• the siloxane blocks comprise about 10 to about 90 weight percent of the block copolymer;
• and the block copolymer has an average molecular weight of at least about 3,000.