What is blue light?

What is blue light?

Jan 16, 2025Sydney Lanners

Blue light is a natural part of visible light, emitted by the sun. But today, it's also ubiquitous because of the screens on our computers, smartphones, tablets and other electronic devices. This light, with a wavelength between 400 and 490 nanometers, has a powerful energy and can easily penetrate the skin.

While it's useful for regulating your biological clock and keeping you awake, excessive exposure to blue light can have not-so-cool consequences for your skin.

Why it's important to protect yourself

With so much time spent in front of screens, it's essential to protect your skin from the harmful effects of blue light. Here are a few simple tips:

  • Add a blue-light filter to your screens to reduce exposure.

  • Choose a skincare routine rich in antioxidants to neutralize free radicals.

  • Use sunscreen even indoors, as blue light passes through windows.

Niacinamide: a key ingredient in the fight against blue light

Niacinamide (vitamin B3) is a multifunctional active ingredient with scientifically proven benefits. Here's how it protects your skin from the harmful effects of blue light:

  • Reduces oxidative stress: Blue light generates free radicals (ROS) which damage skin cells and promote premature ageing. A DSM-Firmenich laboratory study revealed that the use of 3% niacinamide can reduce free radicals by 48% after irradiation with blue light, demonstrating its protective role on the dermis.
  • Cellular damage repair: supports the skin's natural repair mechanisms, notably against the combined effects of UV rays and external aggressions.
  • Prevent hyperpigmentation: Niacinamide reduces melanosome transfer, helping to reduce dark spots and even out skin tone.
  • Reinforces the cutaneous barrier: improves skin hydration and protects against external aggressions.

A study by the DSM-Firmenich laboratory demonstrated that niacinamide could significantly reduce blue light- and UV-induced cell damage markers, while maintaining healthy epidermis.

Hydra-lyn: ideal protection with 4% niacinamide

At Lynell Switzerland, we've incorporated 4% niacinamide into the formulation of our Hydra-lyn face cream to guarantee effective protection against the effects of blue light. In addition to its moisturizing properties, Hydra-lyn acts as a shield for your skin, reducing oxidative stress, strengthening your skin barrier, and preventing the appearance of pigmentation spots.

By making Hydra-lyn part of your routine, you can offer your skin complete defense and optimal hydration, even in the face of prolonged exposure to screens. Don't wait any longer to protect your natural glow!




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