A water compatible surfactant composition which comprises: i at least one hydrocarbyl end-capped hydrocarbyl polyalkoxylate and/or at least one hydrocarbyl end-capped fatty acid polyalkoxylate; and ii at least one organopolysiloxane having one or more polyoxyalkylene side chains, wherein the end-capped hydrocarbyl and/or fatty acid polyalkoxylate is or includes; 1) a compound of the formula (Ia) or (Ib): R 1 O.(AO 1) n.R 2 (Ia) or R 3.CO 2.(AO 1) n.R 2 (Ib) where R 1 is a C 4 to 22 hydrocarbyl group; R 3 is a C 6 to 20 fatty residue; AO 1 is an alkylene oxide residue which may vary along the chain; n is from 2 to 25; and R 2 is a C 1 to 10 hydrocarbyl group. or 2) wherein the end-capped hydrocarbyl polyalkoxylate is an end-capped ethylene oxide / propylene oxide random copolymer of the formula (Ic) or a block copolymer of the formula (Id): R 14 O.[EO i.PO j].R 15 (Ic) R 14 O.(AO 12) k.(AO 13) l.(AO 12) m.R 15 (Id) where R 14 and R 15 are each independently C 1 to 6 alkyl groups; EO is an ethylene oxide residue; PO is a propylene oxide residue; AO 12 is an ethylene oxide or propylene oxide residue AO 13 is an ethylene oxide or propylene oxide residue, but is different from AO 12 i is from 10 to 40; j is from 10 to 30; k and m are each from 0 to 30 and k+m is from 10 to 40; and l is from 10 to 30. i at least one hydrocarbyl end-capped hydrocarbyl polyalkoxylate and/or at least one hydrocarbyl end-capped fatty acid polyalkoxylate; and ii at least one organopolysiloxane having one or more polyoxyalkylene side chains, wherein the end-capped hydrocarbyl and/or fatty acid polyalkoxylate is or includes; 1) a compound of the formula (Ia) or (Ib): R 1 O.(AO 1) n.R 2 (Ia) or R 3.CO 2.(AO 1) n.R 2 (Ib) where R 1 is a C 4 to 22 hydrocarbyl group; R 3 is a C 6 to 20 fatty residue; AO 1 is an alkylene oxide residue which may vary along the chain; n is from 2 to 25; and R 2 is a C 1 to 10 hydrocarbyl group. or 2) wherein the end-capped hydrocarbyl polyalkoxylate is an end-capped ethylene oxide / propylene oxide random copolymer of the formula (Ic) or a block copolymer of the formula (Id): R 14 O.[EO i.PO j].R 15 (Ic) R 14 O.(AO 12) k.(AO 13) l.(AO 12) m.R 15 (Id) where R 14 and R 15 are each independently C 1 to 6 alkyl groups; EO is an ethylene oxide residue; PO is a propylene oxide residue; AO 12 is an ethylene oxide or propylene oxide residue AO 13 is an ethylene oxide or propylene oxide residue, but is different from AO 12 i is from 10 to 40; j is from 10 to 30; k and m are each from 0 to 30 and k+m is from 10 to 40; and l is from 10 to 30. 1) a compound of the formula (Ia) or (Ib): R 1 O.(AO 1) n.R 2 (Ia) or R 3.CO 2.(AO 1) n.R 2 (Ib) where R 1 is a C 4 to 22 hydrocarbyl group; R 3 is a C 6 to 20 fatty residue; AO 1 is an alkylene oxide residue which may vary along the chain; n is from 2 to 25; and R 2 is a C 1 to 10 hydrocarbyl group. or R 1 is a C 4 to 22 hydrocarbyl group; R 3 is a C 6 to 20 fatty residue; AO 1 is an alkylene oxide residue which may vary along the chain; n is from 2 to 25; and R 2 is a C 1 to 10 hydrocarbyl group. 2) wherein the end-capped hydrocarbyl polyalkoxylate is an end-capped ethylene oxide / propylene oxide random copolymer of the formula (Ic) or a block copolymer of the formula (Id): R 14 O.[EO i.PO j].R 15 (Ic) R 14 O.(AO 12) k.(AO 13) l.(AO 12) m.R 15 (Id) where R 14 and R 15 are each independently C 1 to 6 alkyl groups; EO is an ethylene oxide residue; PO is a propylene oxide residue; AO 12 is an ethylene oxide or propylene oxide residue AO 13 is an ethylene oxide or propylene oxide residue, but is different from AO 12 i is from 10 to 40; j is from 10 to 30; k and m are each from 0 to 30 and k+m is from 10 to 40; and l is from 10 to 30. R 14 and R 15 are each independently C 1 to 6 alkyl groups; EO is an ethylene oxide residue; PO is a propylene oxide residue; AO 12 is an ethylene oxide or propylene oxide residue AO 13 is an ethylene oxide or propylene oxide residue, but is different from AO 12 i is from 10 to 40; j is from 10 to 30; k and m are each from 0 to 30 and k+m is from 10 to 40; and l is from 10 to 30.