Attention, beauty products lovers, according to the recent study, the vast majority of in-use make-up products such as beauty blenders, mascara and lip gloss are contaminated with potentially life threatening superbugs, researchers have warned. "Make-up products used every day by millions of people in the UK are contaminated with potentially deadly bugs, such as E.coli and Staphylococci, because most are not being cleaned and are used far beyond their expiry dates," said study lead author Amreen Bashir from Aston University in the US.

According to the study published in the Journal of Applied Microbiology, bacteria that can cause illnesses ranging from skin infections to blood poisoning if used near eyes, mouth or cuts or grazes were found in nine out of ten of the products.

This risk is amplified in immunocompromised people who are more likely to contract infections from opportunistic bacteria.

The relatively new beauty blenders - sponges used to apply skin foundation products - were found to have the highest levels of potentially harmful bacteria - with the vast majority (93 per cent) not having ever been cleaned, despite more than two thirds (64 per cent) being dropped on the floor at some point during use.

The research looked at beauty blender products - hugely popular make-up sponges used to blend foundation and contouring on the face.