A chlorella extract-containing product of excellent safety and storagestability is provided without using a benzoate, which is a commonpreservative.A chlorella extract-containing product containing a capsicum extractat 0.020-1.63% by weight on a dry weight basis relative to a chlorellaextract in an aqueous liquid for drinking having the chlorella extract as anprincipal ingredient. This chlorella extract-containing product is to beused as a chlorella-containing beverage or a chlorella-containing foodadditive.A method for improving the storage stability of a chlorellaextract--containing product, comprising adding a capsicum extract to achlorellaextract at 0.020-1.63% by weight on a dry weight basis in an aqueousliquid for drinking having the chlorella extract as an principal ingredient.
