UK adults spend an average of 3 hours and 28 minutes a day online via their smartphones. A leading dermatologist warns that prolonged phone-to-face contact could be an overlooked contributor to facial irritation and breakouts.
Smartphones can harbour up to 10 times more microbes than a toilet seat and roughly 25,000 bacteria per square inch, compared with 1,736 bacteria per square inch on a kitchen counter. Combined with the warmth, pressure, and friction created during prolonged use, this environment can allow oil, sweat, and bacteria to transfer directly onto the skin. The resulting problem is sometimes referred to as phone acne, although it is not a formal medical diagnosis. It is particularly noticeable when spots repeatedly appear on the cheek or jawline where a phone rests.
Other bacteria commonly associated with the skin, including Staphylococcus and Corynebacterium, can also transfer onto frequently handled surfaces. A study by the London School of Hygiene and Tropical Medicine found that 1 in 6 smartphones carried traces of faecal matter, with E. coli present on 16% of the devices tested.
Dr Conal Perrett, consultant dermatologist at The Devonshire Clinic, notes that the issue stems from a combination of factors rather than basic cleanliness. “Our phones are constantly being handled, placed on different surfaces and brought into contact with our hands, which naturally carry oil, sweat, bacteria and other microorganisms,” Dr Perrett said. “When that same device is then pressed against the face, there is an opportunity for all that material to meet the skin. However, it is important not to oversimplify acne as a hygiene problem. Acne is a complex inflammatory skin condition, and hormones, genetics, sebum production and blockage of the hair follicles are much more fundamental factors. A phone is better thought of as a potential aggravating factor in some people, rather than a primary cause of acne.”
6 expert-approved tips to stop your phone aggravating your skin
Consider antimicrobial protection
Antimicrobial technologies such as Biomaster use silver ion technology incorporated into materials during manufacture to inhibit the growth of microorganisms between routine cleanings.
“Antimicrobial technology can provide an additional layer of protection by helping to limit the growth of microorganisms on the phone surface,” Dr Perrett said. “It shouldn’t replace regular cleaning, but it can be a useful way of reducing microbial build-up between cleans, particularly for a device that is in constant contact with our hands and, often, our face.”
Clean your phone regularly
Clean your screen a few times a week using a microfibre cloth and a mix of 60% water and 40% rubbing alcohol, or use safe disinfectant wipes. Always follow your manufacturer’s cleaning guidance to ensure compatibility.
“Regularly cleaning your phone is one of the simplest things you can do to reduce the build up of oil, sweat and microorganisms on the surface,” Dr Perrett explained. “If you regularly hold your phone against your cheek, keeping the screen clean is particularly important, as it helps reduce the amount of material being transferred directly onto your skin.”
Use headphones or speaker mode
Using headphones, earbuds, or speaker mode during longer calls reduces exposure to warmth, pressure, and contact.
“It’s not just what is on the phone that can be relevant, prolonged contact can also create warmth, pressure and friction against the skin,” Dr Perrett added. “Giving your skin a break from direct phone contact can therefore be helpful, particularly if you notice breakouts appearing where your phone normally rests.”
Leave your phone out of the bathroom
In a study of shared bathrooms, bacterial growth was detected in 84% of 665 surface samples taken from toilet seats, door handles, taps, floors, and toilet armrests.
“We take our phones everywhere, but we don’t always think about what they pick up along the way,” Dr Perrett said. “The bathroom is an environment where there is greater potential for contamination, so my advice is simple: leave your phone behind where possible. It’s one easy habit that can reduce the number of microorganisms your phone encounters and, ultimately, what you’re transferring back onto your hands and face.”
Wash your hands, but do not over-wash your face
Good hand hygiene reduces the transfer of debris between hands, phones, and faces. However, repeatedly scrubbing the face damages the skin barrier and increases irritation.
“Washing your hands regularly is important, particularly before touching your face, but there is no need to aggressively scrub your skin,” Dr Perrett explained. “Over-washing can cause irritation and may make existing skin problems worse. Gentle cleansing is generally preferable to trying to scrub away acne.”
Do not assume every breakout is phone acne
Acne remains one of the UK’s most common skin conditions, with the NHS estimating that around 95% of people aged 11–30 experience it to some extent. Persistent or severe breakouts may require medical evaluation.
“It’s important not to blame every breakout on your phone,” Dr Perrett said. “Acne is a complex condition with multiple possible causes, and simply changing your phone habits won’t necessarily resolve persistent acne. If breakouts are ongoing, severe or affecting your confidence, it’s worth speaking to a healthcare professional for appropriate advice.”
“Given how much time we now spend with our phones, it makes sense to consider the skin implications of that contact,” Dr Perrett concluded. “But I would not want people with acne to feel that their condition is somehow their fault because they have not cleaned their phone enough. Acne is a genuine medical condition and is not caused by poor hygiene. Phone hygiene is simply one practical factor people can address, particularly if they notice a recurring pattern of irritation or spots exactly where their phone touches their skin.”