Present invention relates to aqueous conditioning composition for keratin fibers especially for hair, which provides hair long lasting, several hair washes, conditioning effect. Accordingly, present invention is a conditioning composition for hair which comprises at least one polydimethylsiloxane with a viscosity of maximum 350 mm2/s at a concentration of 12.5% by weight or higher and polyquaternium 37 at a concentration of 0.2 to 5% by weight, calculated to total composition.
