I don’t know Katy Perry personally, but I saw her show in Las Vegas and her skin looked amazing. It was so luminous, I almost didn’t notice her iconic whipped-cream-canister bra because I couldn’t stop staring at her face.
I know celebrities are not just like us, and it takes a lot of talented people to get a show-stopping glow like Perry’s. But when she recently gave props to red light therapy for her great skin — it was the ultimate celebrity secret I’d been waiting for.
Could it be true that all of us are just a red light away from Perry-perfect skin?
Well, not exactly. But research has found that red light therapy can help reveal smoother skin and reduce small lines and wrinkles. “It’s not going to be the effect of a facelift or give you the same kind of volume that you would get with filler — but your skin may feel more rejuvenated,” said Elizabeth Liotta, M.D., a board-certified dermatologist and member of HealthyWomen’s Women’s Health Advisory Council.
What is red light therapy?
You’ve probably seen red light therapy advertised as a glowing wand, panel or mask on social media. Or if you followed NASA in the 1990s, you may remember when it made headlines as a way to help heal astronauts’ wounds.
Either way, red light therapy involves a device that shines LED (light-emitting diode) light onto skin. The low levels of red or near-infrared light help promote cell turnover for healing and can improve skin texture and tone overall.
Red light therapy benefits
“Data show that red light therapy increases collagen and blood circulation and decreases inflammation,” Liotta said.
In addition to the collagen boost for fine lines and wrinkles, red light therapy can be used on the face and body to help treat many skin conditions, including:
Red light therapy can also help with pain and promote healing for various health conditions. These can include:
- Arthritis
- Mouth sores
- Tendinitis
Treatment for certain conditions such as skin cancer must be done in-office by your healthcare provider (HCP). But a big part of why red light therapy is so hot right now is because you can DIY at home.
Red light therapy at home
Choosing a red light therapy device is the tough part. There are a lot of options out there. When looking at devices for your face, Lauren Fine, M.D., a board-certified dermatologist, recommended a mask over something smaller like a wand or razor-type device. “It makes more sense to get the mask unless you’re just focusing on one small part of your face,” she said. “The smaller handheld wands are harder to use and there’s more room for error.”
Whatever device you decide to go with, Fine said it’s important to look at the wavelength and nanometers. “For anti-aging purposes, if it’s not in the 600 to 630 [nanometers] range it’s going to be a waste of money — it won’t have that collagen stimulating effect.”
If you’re looking for something stronger or to help with recovery or pain in the body, wavelengths measuring 800 nanometers and above penetrate deeper into the tissue and can reduce inflammation.
If the device doesn’t list the nanometers at all, Fine said to find one that does.
When considering a specific brand, a little research can go a long way. The Food and Drug Administration has approved several red light therapy devices. You can also check with your HCP for a recommendation and read the online reviews before you buy a device. Liotta noted that you don’t have to get the most popular or the most expensive one to get results. “Some companies have great marketing but red light is really tried and true,” she said.
Possible red light therapy dangers
Many people can benefit from a little red light therapy, but there are a few things to keep in mind before you get your shine on. “In general, these treatments are overwhelmingly safe and gentle and effective, but some people are sensitive to the effects of heat on the skin. So, if someone is prone to dark spots or hyperpigmentation, I would be careful with using a full face mask,” Fine said.
Check with your HCP before trying red light therapy if you’re on medications that make you sensitive to sunlight or if you’re pregnant or going through radiation or chemotherapy.
Before using any red light device, Liotta said to read the directions carefully because they vary regarding timing and how many days a week you can use it. Keep in mind that your skin shouldn’t feel hot or burning when using a red light device. If that happens, don’t use it again.
Overall, if your skin needs a boost, RLT can be an easy way to give it some TLC. “It’s a little tweak and you can look a little tighter and a little brighter,” Liotta said.
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