The present invention relates to a composition for storing at least one biomolecule, the composition comprising: a. between about 0.2% w/w to about 20.0% w/w of D-(+)-Trehalose dehydrate and b. between about 0.1% w/w to about 10.0% w/w of D-Mannitol c. between about 0.01% w/w to 0.3% w/w of polyoxyethylenesorbitan monooleate and d. between about 1.0 nM to about 500 mM of Sodium Citrate at pH between about 4.0 to about 8.0 and e. between strictly more than about 0% w/w to about 0.5% w/w of preservative solution, said preservative solution comprising: i. between about 1.0% w/w and about 5.0% w/w of 5 Chloro-2 methyl-4-isothiazolin-3-one and ii. between about 0.1% w/w and about 3.0% w/w 2-Methyl-4-isothiazolin-3-one.
