How to make sense of LED face masks, wavelengths and skincare claims

LED face masks used to be something you’d mainly find in clinics. Now they’re all over TikTok, bathroom shelves and the Mumsnet Style & Beauty forum.

But even though they’ve become one of the most talked-about beauty gadgets around, plenty of Mumsnet users are still asking the same sensible questions: do they work, which wavelengths matter and are they actually worth the faff?

With prices ranging from fairly affordable to eye-watering, and with plenty of skincare claims to wade through, it’s easy to feel a bit overwhelmed.

If you’re thinking about buying an LED face mask, this guide breaks down the basics: what red, blue and near-infrared light are commonly used for, which claims deserve a raised eyebrow and which practical features are worth checking before you spend your money.

What is an LED face mask?

An LED face mask is a wearable skincare device that uses light-emitting diodes to expose the skin to specific wavelengths of light.

Unlike UV light, which can damage skin cells, LED masks use visible light and, in some cases, near-infrared light. They’re generally considered safe when used as instructed, but you still need to follow the manufacturer’s guidance.

It’s worth keeping expectations realistic. At-home LED masks are designed to sit alongside your skincare routine. They’re not a replacement for professional treatments, and they shouldn’t be used instead of medical advice for skin conditions.

What do red, blue and near-infrared wavelengths mean?

Different wavelengths of light reach different depths of the skin. They’re measured in nanometres, written as nm.

Red light is often used in skincare devices for concerns such as fine lines, uneven tone and dullness. Blue light is often associated with blemish-prone skin, although brands need to be careful about making medical claims around acne. Near-infrared light goes deeper than visible light and is often used alongside red light in anti-ageing devices.

As a rough guide:

• Red light is usually around 630 to 650nm and is commonly used in products aimed at fine lines, texture and radiance.

• Blue light is often around 415nm and is commonly used in products aimed at blemish-prone skin.

• Near-infrared light is often around 850 to 900nm and is usually paired with red light in devices aimed at firmness, tone and signs of ageing.

The important bit? Don’t just look for “red light” or “blue light” on the box. A decent brand should tell you the actual wavelengths.

What claims can you trust?

LED face masks can make skin look brighter and fresher, especially when used consistently. But they’re not miracle workers, and they shouldn’t be sold as a fix for medical skin conditions.

Be wary of claims that a mask can treat acne, rosacea or other skin conditions unless the brand can clearly show that the device is authorised to make those claims. In the UK, regulators have already taken action against LED mask adverts that crossed that line.

That doesn’t mean an LED mask can’t earn its place in your routine. Some Mumsnet users say regular use has made their skin look healthier, glowier and a bit more rested. Not life-changing, perhaps, but not nothing either.

- Mumsnet user, WildRoseBalm

What to check before buying an LED face mask

• Wavelengths: As opposed to just “red light” or “blue light”, good brands should tell you the exact wavelengths, typically measured in nanometres.

• Treatment time: Be realistic about how much time you'll actually spend using it. Some LED masks require 15 to 20-minute sessions, while others, such as the Project E LumaLux Face | Pro LED Red Light Therapy Mask, are designed for 3 to 6-minute sessions. Consistency is key, so the best mask is the one you'll be able to make time for.

• Comfort: Another key factor is how it feels. Anything too heavy or tight could make you feel claustrophobic or even leave marks. As well as leaving skin looking more radiant, LED masks can also offer a bit of self-care time, so you want to be cosy and comfortable. Project E says its LumaLux masks use soft silicone and built-in cushion eye protection.

• Coverage: Does the mask target one area or tackle the whole face? It’s worth being sure before making a big splurge. 

• Charging and storage: There's nothing more frustrating than a beauty gadget that constantly needs charging or runs out of battery halfway through your routine. Before you buy, check the product specifications and customer reviews to get a better idea of battery life and charging performance. A pouch or case is useful too, as it'll help keep everything organised between uses.

• Warranty and returns: LED masks are an investment, and a good warranty and returns policy offer peace of mind if the device develops a fault or simply isn't for you.

• Price: You don't always need the most expensive mask. You're paying for factors such as the number of LEDs, build quality, comfort and brand reputation, but a higher price tag doesn't automatically guarantee better results.

• Evidence: Be wary of bold promises. Look for brands that explain the wavelengths they use and back up their claims with independent research or even published studies. Check customer reviews or even look through our Mumsnet forums for unbiased feedback.

Are at-home LED face masks worth the faff?

There’s no point buying an LED face mask if it’s going to sit unused under the sink with the foot spa and the spiraliser.

The Mumsnet users who rate them tend to say the same thing: consistency matters.

“I have the Project E Beauty Photon Mask,” WildRoseBalm shared. “Honestly, I was sceptical and didn't want to spend big. But I've been very consistent with using it (much to my teenager's amusement) and it's really made a difference.”

“I think they do improve skin if used consistently, it helps with fine lines and gives a glow,” HornyHornersPinkyWinky added. “But it will take a while, you won't get overnight results.”

“I ordered the Project E one, because I am a sheep, and WOW!” JMAngel1 said in another thread. “Used it [for] three nights running, 20mins Red and 5 mins Blue and my face is TRANSFORMED.”

Ultimately, the Mumsnet users who rate them tend to agree that consistency is key. So, when choosing an LED mask, look for one that fits into your routine. Is it comfortable to wear? Are the treatment sessions manageable? Is it easy to charge and store? If the answer is yes, it could be the beauty buy for you.

Where Project E Beauty fits in

Project E Beauty is a skincare brand specialising in at-home beauty devices. The brand says its LumaLux range uses specific LED wavelengths and is designed for concerns such as uneven-looking tone, dullness and the appearance of fine lines. 

The LumaLux Face | Pro LED Red Light Therapy Mask works to target the face, while the LumaLux Face+ | Pro LED Red Light Therapy Face & Neck Mask is an upgraded version that includes face and neck, and the LumaLux Neck & Dec | Pro LED Red Light Therapy Mask focuses on the neck and décolletage.

The brand says the products come with a two-year warranty. They also come with charging cables, a carry bag and a user manual.

As with any LED mask, it’s worth checking the exact wavelengths, comfort, coverage and returns policy before you buy.

When should you avoid an LED face mask?

LED face masks are generally considered low-risk when used properly, but they’re not for everyone.

Avoid using one, or get medical advice first, if you take medication that makes your skin or eyes more sensitive to light, such as isotretinoin or lithium. You should also check with a healthcare professional if you have epilepsy, migraines triggered by bright light, a light-sensitive condition, an eye condition, broken or irritated skin, or a current skin infection.

If you’re pregnant, breastfeeding or under medical care, speak to your GP, midwife or dermatologist before using an LED mask.

And finally, don’t use an LED mask instead of getting help for a persistent skin concern. If you’re dealing with acne, rosacea, a changing mole, a rash that won’t shift or anything painful, bleeding or unusual, get medical advice.

Frequently asked questions about LED face masks

What do LED face mask wavelengths mean?

Think of wavelengths as the different colours of light. They can all do different jobs, such as red for visible signs of ageing and blue for blemish-prone skin. 

Are LED face masks worth it?

They certainly can be! As some Mumsnet users say, regular use can have noticeable results. Just do your research in terms of quality, treatment time, and comfort. And remember, they're a skincare boost, not an overnight miracle.

What is the difference between red light and blue light in an LED mask?

Red light is often used in devices aimed at visible signs of ageing, while blue light is often used in products aimed at blemish-prone skin. Avoid any mask that claims to treat or prevent acne unless the brand can clearly show it’s authorised to make that claim. 

What is near-infrared light in skincare?

Near-infrared (NIR) is invisible light that penetrates deeper layers of the skin. It's often used alongside red light to support skin repair and the overall health of the skin.

How often should you use an LED face mask?

Most brands suggest regular sessions per week, but treatment time may vary. Always follow the product’s instruction manual, and remember that consistency is key.

Are LED face masks safe for your eyes?

Most masks are designed with the safety of your eyes in mind, such as light blocking and comfy cushioning. Always check the instructions and consider customer reviews for extra peace of mind.

What claims should I be careful of when buying an LED face mask?

Be wary of bold promises that claim the mask can achieve the results of surgical treatments or help fix a medical skin problem, such as acne or rosacea. If you are battling a medical skin problem, it’s always best to consult a professional.

What should I check before buying an at-home LED mask?

Look for clear information on wavelengths, coverage, comfort, realistic treatment times, warranty details and useful customer reviews.

About Project E Beauty

Project E Beauty was founded to elevate everyday routines into moments of self-care that fuel confidence and well-being. Because skincare looks different for everyone, simplicity is at the heart of everything we do: simple, science-backed, time-tested techniques delivered through easy-to-use skincare devices.