designed to protect skin from the sun's harmful rays should not be applied after its use-by date, an expert has insisted.
According to beauty specialist Elsa Mcalonan, products such as lotions, creams and gels have a shelf life of about two or three years if they have never been opened.
However, she stated that if an item has been opened for more than three months, it should be disposed of and replaced.
"Bacteria can damage the cream's filters," she told the Daily Mail.
"You can usually spot this when the cream begins to separate."
Ms Mcalonan added that sun protection products should be kept in the fridge when they are not being used.
She stated that this would help it to last longer and feel more invigorating on the skin.
This comes after Indy Rihal of the British Skin Foundation stressed the need to apply protection in sunny weather, warning that just one case of sunburn can "significantly" increase the chance of developing skin cancer.