Beauty products shouldn't be used as a substitute for sunscreen even if they contain sun protection properties, it has been recommended.
The British Skin Foundation said that there is no substitute for specialist sunscreen.
"If you are going to go out in the sun, use an actual sunscreen because that's what the product is there for to filter out UVB and UVA radiation from the sun," the charity's Bevis Man said.
He added that people should "at all costs avoid sun burning" as, although it may be possible to moisturise afterwards, the risk of developing skin cancer has already been heightened.
Sun exposure is the main cause of both malignant melanoma and non-melanoma skin cancers.
According to figures from Cancer Research UK, more than 2,500 people a year die from skin cancer in the UK alone.