Afire retardant composition for use in wood composite panels, wherein said wood composite panels comprise a resin chosen from the group of urea-formaldehydes, isocyanates and phenol-formaldehydes, wherein said composition comprises - at least one fire retardant agent chosen from the group of ammonium (poly)phosphates such as monoammonium dihydrogen phosphate, diammonium hydrogen phosphate (DAP, both technical and fertilizer grade) ammonium polyphosphate, melamine phosphate or melamine polyphosphate; ammonium sulfate; ammonium chloride; ammonium sulfamate; guanidine phosphate; guanidine hydrogen phosphate; guanidine sulfamate; guanidine carbonate; methylene urea, urea phosphate and alkaline earth phosphates or any mixture thereof, whereby the total concentration of said fire retardant agent in the composition is between 25 and 100 % by dry weight of said composition; or an intumescent formulation as fire retardant agent; - optionally at least one smoke suppressing agent, whereby the total concentration of smoke suppressing agents is between 0 and 25 % by dry weight of said composition; and - a pH regulating compound, characterized in that the pH of a 10 % aqueous solution of said composition - lies between 5.0 and 7.0 when said resin is chosen from the group of ureaformaldehydes, - lies between 4.0 and 6.0 when said resin is chosen from the group of isocyanates, and - lies between 6.0 and 8.0 when said resin is chosen from the group of phenol-formaldehydes. wherein said composition comprises - at least one fire retardant agent chosen from the group of ammonium (poly)phosphates such as monoammonium dihydrogen phosphate, diammonium hydrogen phosphate (DAP, both technical and fertilizer grade) ammonium polyphosphate, melamine phosphate or melamine polyphosphate; ammonium sulfate; ammonium chloride; ammonium sulfamate; guanidine phosphate; guanidine hydrogen phosphate; guanidine sulfamate; guanidine carbonate; methylene urea, urea phosphate and alkaline earth phosphates or any mixture thereof, whereby the total concentration of said fire retardant agent in the composition is between 25 and 100 % by dry weight of said composition; or an intumescent formulation as fire retardant agent; - optionally at least one smoke suppressing agent, whereby the total concentration of smoke suppressing agents is between 0 and 25 % by dry weight of said composition; and - a pH regulating compound, - at least one fire retardant agent chosen from the group of ammonium (poly)phosphates such as monoammonium dihydrogen phosphate, diammonium hydrogen phosphate (DAP, both technical and fertilizer grade) ammonium polyphosphate, melamine phosphate or melamine polyphosphate; ammonium sulfate; ammonium chloride; ammonium sulfamate; guanidine phosphate; guanidine hydrogen phosphate; guanidine sulfamate; guanidine carbonate; methylene urea, urea phosphate and alkaline earth phosphates or any mixture thereof, whereby the total concentration of said fire retardant agent in the composition is between 25 and 100 % by dry weight of said composition; or an intumescent formulation as fire retardant agent; - optionally at least one smoke suppressing agent, whereby the total concentration of smoke suppressing agents is between 0 and 25 % by dry weight of said composition; and - a pH regulating compound, characterized in that the pH of a 10 % aqueous solution of said composition - lies between 5.0 and 7.0 when said resin is chosen from the group of ureaformaldehydes, - lies between 4.0 and 6.0 when said resin is chosen from the group of isocyanates, and - lies between 6.0 and 8.0 when said resin is chosen from the group of phenol-formaldehydes. - lies between 5.0 and 7.0 when said resin is chosen from the group of ureaformaldehydes, - lies between 4.0 and 6.0 when said resin is chosen from the group of isocyanates, and - lies between 6.0 and 8.0 when said resin is chosen from the group of phenol-formaldehydes.