LED therapy masks have become increasingly popular in skincare routines, with celebrities and beauty enthusiasts embracing them for their potential skin benefits. Filmmaker and television host Karan Johar recently revealed that he uses one every Sunday, raising questions about whether these devices can genuinely improve skin health or are simply another celebrity beauty trend.Karan Johar is hosting the last season of Koffee With Karan, and his recent guests include Kareena Kapoor Khan and Saif Ali Khan.

During Kareena's rapid-fire round, Karan asked her about a fashion fad or beauty trend that made her cringe. Responding to the question, Kareena said, "I don't get that infrared mask, it looks really scary."During the conversation, Karan revealed that he owns an LED face mask and uses it regularly.

He said, "I have it, every Sunday I put it on."While LED face masks may look intimidating, there is scientific research supporting their potential role in skincare. However, dermatologists say their benefits depend on the technology used, the wavelength of light and how consistently the device is used.

According to Dr Amrendra Kumar, Dermatologist and Hair Transplant Surgeon at Dermaclinix, New Delhi, LED therapy masks are not merely a celebrity skincare trend, as there is genuine science behind them. However, their benefits need to be understood realistically."Red light, typically in the 630–660 nm range, and near-infrared light work through a process called photobiomodulation, influencing cellular activity and potentially stimulating collagen production," he explains.

Clinical studies have demonstrated modest improvements in fine lines, skin texture, elasticity and inflammation. These wavelengths may support collagen production, which plays an important role in maintaining skin firmness and elasticity.Blue light, on the other hand, works differently.

It can help control mild to moderate acne by targeting acne-causing bacteria. This makes LED therapy a potential option for people looking to address specific skin concerns without invasive procedures.HOW OFTEN SHOULD YOU USE AN LED FACE MASK?One important factor determining the effectiveness of LED therapy is consistency.

According to Dr Kumar, the results depend significantly on the wavelength, energy delivered, treatment duration and frequency of use.Most clinical studies demonstrating visible improvements involve multiple sessions per week over several weeks. Therefore, using an LED mask only once every Sunday may offer limited benefits compared with a structured treatment protocol.This means that simply owning an LED mask or using it occasionally may not deliver the desired results.

Following the manufacturer's instructions and choosing a device with appropriate specifications are important.ARE LED FACE MASKS SAFE FOR EVERYONE?Although LED therapy is generally considered a non-invasive skincare approach, it may not be suitable for everyone. Not all commercially available LED masks deliver clinically effective energy levels, making device selection particularly important.People with melasma, pigmentation-prone skin or photosensitivity should exercise additional caution, particularly when using blue light.

Those with existing skin conditions or concerns should consult a dermatologist before incorporating LED therapy into their routine.CAN LED MASKS REPLACE YOUR REGULAR SKINCARE ROUTINE?Despite their potential benefits, LED masks should not be viewed as a replacement for established skincare practices.Dr Kumar recommends considering LED therapy a scientifically promising addition to skincare rather than a substitute for sunscreen, retinoids or established dermatological treatments.Consistency, appropriate device selection and realistic expectations remain essential. While LED masks may support improvements in certain skin concerns, they are not a quick fix for every skincare problem.Ultimately, Karan Johar's Sunday skincare ritual may be an interesting addition to his beauty routine, but dermatologists emphasise that the effectiveness of LED therapy depends on how the technology is used rather than celebrity endorsements alone.- Ends