Social media is full of claims that everyday habits can harm your skin. It’s also full of recommendations or advertisements for products that can protect you.

Now social media has blue light from our devices in its sights.

So can scrolling on our phones really damage your skin? And will applying creams or lotions help?

Here’s what the evidence says and what we should really be focusing on.

Remind me, what actually is blue light?

Blue light is part of the visible light spectrum. Sunlight is the strongest source. But our electronic devices – such as our phones, laptops and TVs – also emit it, albeit at levels 100-1,000 times lower.

Seeing as we spend so much time using these devices, there has been some concern about the impact of blue light on our health, including on our eyes and sleep.

Now, we’re learning more about the impact of blue light on our skin.

How does blue light affect the skin?

The evidence for blue light’s impact on skin is still emerging. But there are some interesting findings.

1. Blue light can increase pigmentation

Studies suggest exposure to blue light can stimulate production of melanin, the natural skin pigment that gives skin its colour.

So too much blue light can potentially worsen hyperpigmentation – overproduction of melanin leading to dark spots on the skin – especially in people with darker skin.

2. Blue light can give you wrinkles

Some research suggests blue light might damage collagen, a protein essential for skin structure, potentially accelerating the formation of wrinkles.

A laboratory study suggests this can happen if you hold your device one centimetre from your skin for as little as an hour.

However, for most people, if you hold your device more than 10cm away from your skin, that would reduce your exposure 100-fold. So this is much less likely to be significant.

3. Blue light can disrupt your sleep, affecting your skin

If the skin around your eyes looks dull or puffy, it’s easy to blame this directly on blue light. But as we know blue light affects sleep, what you’re probably seeing are some of the visible signs of sleep deprivation.

We know blue light is particularly good at suppressing production of melatonin. This natural hormone normally signals to our bodies when it’s time for sleep and helps regulate our sleep-wake cycle.

By suppressing melatonin, blue light exposure before bed disrupts this natural process, making it harder to fall asleep and potentially reducing the quality of your sleep.

The stimulating nature of screen content further disrupts sleep. Social media feeds, news articles, video games, or even work emails can keep our brains active and alert, hindering the transition into a sleep state.

Long-term sleep problems can also worsen existing skin conditions, such as acne, eczema and rosacea.

Sleep deprivation can elevate cortisol levels, a stress hormone that breaks down collagen, the protein responsible for skin’s firmness. Lack of sleep can also weaken the skin’s natural barrier, making it more susceptible to environmental damage and dryness.

Can skincare protect me?

The beauty industry has capitalised on concerns about blue light and offers a range of protective products such as mists, serums and lip glosses.

From a practical perspective, probably only those with the more troublesome hyperpigmentation known as melasma need to be concerned about blue light from devices.

This condition requires the skin to be well protected from all visible light at all times. The only products that are totally effective are those that block all light, namely mineral-based suncreens or some cosmetics. If you can’t see the skin through them they are going to be effective.

But there is a lack of rigorous testing for non-opaque products outside laboratories. This makes it difficult to assess if they work and if it’s worth adding them to your skincare routine.

What can I do to minimise blue light then?

Here are some simple steps you can take to minimise your exposure to blue light, especially at night when it can disrupt your sleep:

• use the “night mode” setting on your device or use a blue-light filter app to reduce your exposure to blue light in the evening
• minimise screen time before bed and create a relaxing bedtime routine to avoid the types of sleep disturbances that can affect the health of your skin
• hold your phone or device away from your skin to minimise exposure to blue light
• use sunscreen. Mineral and physical sunscreens containing titanium dioxide and iron oxides offer broad protection, including from blue light.

In a nutshell

Blue light exposure has been linked with some skin concerns, particularly pigmentation for people with darker skin. However, research is ongoing.

While skincare to protect against blue light shows promise, more testing is needed to determine if it works.

For now, prioritise good sun protection with a broad-spectrum sunscreen, which not only protects against UV, but also light.

Michael Freeman, Associate Professor of Dermatology, Bond University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

People considering cosmetic surgery – such as a breast augmentation, liposuction or face lift – should have extra protection following the release this week of new safety and quality standards for providers, from small day-clinics through to larger medical organisations.

The new standards cover issues including how these surgeries are advertised, psychological assessments before surgery, the need for people to be informed of risks associated with the procedure, and the type of care people can expect during and afterwards. The idea is for uniform standards across Australia.

The move is part of sweeping reforms of the cosmetic surgery industry and the regulation of medical practitioners, including who is allowed to call themselves a surgeon.

It is heartening to see these reforms, but some may say they should have come much sooner for what’s considered a highly unregulated area of medicine.

Why do people want cosmetic surgery?

Australians spent an estimated A$473 million on cosmetic surgery procedures in 2023.

The major reason people want cosmetic surgery relates to concerns about their body image. Comments from their partners, friends or family about their appearance is another reason.

The way cosmetic surgery is portrayed on social media is also a factor. It’s often portrayed as an “easy” and “accessible” fix for concerns about someone’s appearance. So such aesthetic procedures have become far more normalised.

The use of “before” and “after” images online is also a powerful influence. Some people may think their appearance is worse than the “before” photo and so they think cosmetic intervention is even more necessary.

People don’t always get the results they expect

Most people are satisfied with their surgical outcomes and feel better about the body part that was previously concerning them.

However, people have often paid a sizeable sum of money for these surgeries and sometimes experienced considerable pain as they recover. So a positive evaluation may be needed to justify these experiences.

People who are likely to be unhappy with their results are those with unrealistic expectations for the outcomes, including the recovery period. This can occur if people are not provided with sufficient information throughout the surgical process, but particularly before making their final decision to proceed.

What’s changing?

According to the new standards, services need to ensure their own advertising is not misleading, does not create unreasonable expectations of benefits, does not use patient testimonials, and doesn’t offer any gifts or inducements.

For some clinics, this will mean very little change as they were not using these approaches anyway, but for others this may mean quite a shift in their advertising strategy.

It will likely be a major challenge for clinics to monitor all of their patient communication to ensure they adhere to the standards.

It is also not quite clear how the advertising standards will be monitored, given the expanse of the internet.

What about the mental health assessment?

The new standards say clinics must have processes to ensure the assessment of a patient’s general health, including psychological health, and that information from a patient’s referring doctor be used “where available”.

According to the guidelines from the Medical Board of Australia, which the standards are said to complement, all patients must have a referral, “preferably from their usual general practitioner or if that is not possible, from another general practitioner or other specialist medical practitioner”.

While this is a step in the right direction, we may be relying on medical professionals who may not specialise in assessing body image concerns and related mental health conditions. They may also have had very little prior contact with the patient to make their clinical impressions.

So these doctors need further training to ensure they can perform assessments efficiently and effectively. People considering surgery may also not be forthcoming with these practitioners, and may view them as “gatekeepers” to surgery they really want to have.

Ideally, mental health assessments should be performed by health professionals who are extensively trained in the area. They also know what other areas should be explored with the patient, such as the potential impact of trauma on body image concerns.

Of course, there are not enough mental health professionals, particularly psychologists, to conduct these assessments so there is no easy solution.

Ultimately, this area of health would likely benefit from a standard multidisciplinary approach where all health professionals involved (such as the cosmetic surgeon, general practitioner, dermatologist, psychologist) work together with the patient to come up with a plan to best address their bodily concerns.

In this way, patients would likely not view any of the health professionals as “gatekeepers” but rather members of their treating team.

If you’re considering cosmetic surgery

The Australian Commission on Safety and Quality in Health Care, which developed the new standards, recommended taking these four steps if you’re considering cosmetic surgery:

1. have an independent physical and mental health assessment before you commit to cosmetic surgery

2. make an informed decision knowing the risks

3. choose your practitioner, knowing their training and qualifications

4. discuss your care after your operation and where you can go for support.

My ultimate hope is people safely receive the care to help them best overcome their bodily concerns whether it be medical, psychological or a combination.

Gemma Sharp, Associate Professor, NHMRC Emerging Leadership Fellow & Senior Clinical Psychologist, Monash University

This article is republished from The Conversation under a Creative Commons license. Read the original article.