A liquid beverage enhancer product for milk or coffee, including a shelf-stable and physically stable, highly concentrated liquid flavor and color solution including at least 10% non-water solvents with humectant properties including propylene glycol and optionally a non-water solvent chosen from the group consisting of glycerol, ethanol, isopropyl alcohol, propanediol, and combinations thereof, 5-90% flavors and colors, 0-70% water, 0-30% high intensity sweeteners, 0-40% sugars, and 0-40% acid, wherein the liquid beverage enhancer product has a pH greater than 4.6 and is free of preservatives sodium benzoate and potassium sorbate. A method of enhancing a beverage by adding a liquid beverage enhancer product including a shelf-stable highly concentrated liquid flavor and color solution having at least 10% non-water solvents with humectant properties including propylene glycol to a beverage, and enhancing the flavor and color of the beverage.