Posted by Equipo Anelle Skin
on September 20, 2025
In short: LED phototherapy uses visible and near-infrared light, without UV rays. Each color has a different wavelength and reaches a different depth in the skin. The Glow Mask works with 4 modes: Calm (green, 525 nm), Brighten (amber, 590 nm), Rejuvenate (red, 660 nm), and Tighten (red plus infrared, 660 + 850 nm). Here is what each one does, how to choose it, and how to use it.
Anelle Skin Glow Mask
- 4 light modes: 525, 590, 660, and 660 + 850 nm
- Battery-powered: cordless and hands-free
- 5, 10, or 15-minute sessions
Calm, green 525 nm
"What is each color used for?" is the most common question when someone discovers LED phototherapy. The short answer: each light has a different function because it reaches a different depth. The long answer, with graphics, is below.
What is LED phototherapy
An LED is a small semiconductor that, when receiving current, emits light of a specific color. That color is measured by its wavelength, in nanometers (nm). In skincare, lights from the visible and near-infrared spectrum are used: non-ionizing and without UV rays, which are the ones that tan and damage the skin.
Calm525 nm
Brighten590 nm
Rejuvenate660 nm
Tighten660 + 850 nm
Visible light380 to 700 nmNear-infraredfrom 700 nm
What each color of LED phototherapy does
There are masks and devices on the market with many colors: blue, purple, orange... The Glow Mask focuses on four modes. This is what each one does, just as described in its manual:
Calm · green 525 nm
- Provides a sense of calm.
- Promotes a more even-looking tone.
Brighten · amber 590 nm
- Enhances luminosity.
- Visually improves tone uniformity.
Rejuvenate · red 660 nm
- Helps visually improve smoothness.
- And the firm appearance of the skin.
Tighten · red + infrared, 660 + 850 nm
- Promotes a firmer appearance.
- Helps visually soften expression lines.
And what about the blue or purple you see in other devices? They are shorter wavelengths, below 500 nm. The Glow Mask does not include them: it works with green, amber, red, and near-infrared.
How far each light reaches in the skin
The rule is simple: the higher the wavelength, the deeper the light reaches. Short lights stay near the surface, and near-infrared is the one that goes the furthest. We are talking about millimeters, not centimeters.
EpidermisDermisHypodermis
If you want to delve deeper into the light that cannot be seen, we explain it in near-infrared light: what it is and what it is used for.
How to use each mode: your step-by-step routine
The protocol is the same for all four modes. What changes is the color you choose depending on what you want to treat. First of all: clean and dry face, without makeup or oils, and during the session, eyes closed.
- Before startingSensitivity test: 5 minutes on the inside of the forearm.
- Week 15-minute sessions, 3 or 4 times.
- AfterwardsIncrease to 10 or 15 minutes depending on how your skin responds.
- AlwaysAt most 4 sessions a week, with rest days.
- 15'L
- M
- 15'X
- J
- 15'V
- S
- 15'D
How long should each session last? You can find it in how long to use the LED mask. And before the first one, review the contraindications and the most common mistakes.
LED device or mask at home: differences
LED phototherapy was born in devices, in beauty centers. Home-use masks bring that technology to your routine, with other advantages and other limits.
Home mask
- Sessions
- Short and frequent, at your own pace
- Where
- At home or traveling, with a battery
- Key
- Consistency week after week
LED device
- Sessions
- More powerful, with an appointment
- Where
- In a beauty center
- Key
- The guidance of a professional
They are not mutually exclusive: some people combine in-office sessions with their home routine. If you have a center and are interested in working with the Glow Mask, tell us here.
Your routine in 10 seconds
What do you want to treat?
It is not about using more colors, but about choosing the right one and being consistent.
Frequently Asked Questions
Which color of LED phototherapy do I choose?
It depends on what you want to treat. For luminosity, Brighten. For smoothness and a firm appearance, Rejuvenate. For firmness and expression lines, Tighten. For a sense of calm, Calm.
Does LED phototherapy heat up or burn?
No. It uses visible and near-infrared light, without UV rays. If you notice some temperature, it comes from the LEDs themselves when operating.
Can I combine several colors?
Yes, by alternating modes in different sessions, always within the maximum of 4 sessions a week with rest days.
Why doesn't the Glow Mask have blue light?
Because it focuses on four modes: green, amber, red, and red plus near-infrared, designed for calm, luminosity, smoothness, and firmness of the skin.
Is it the same as a beauty device?
It is the same family of technology, adapted for home use: shorter and more frequent sessions, at your own pace. The device offers more power and the guidance of a professional.
References
- Anelle Skin (2026). Anelle Skin Glow Mask User Manual, version 2: light modes and usage instructions.
- Avci, P. et al. (2013). Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Seminars in Cutaneous Medicine and Surgery, 32(1), 41-52. PubMed
- Kim, W.S. and Calderhead, R.G. (2011). Is light-emitting diode phototherapy (LED-LLLT) really effective? Laser Therapy, 20(3), 205-215. PubMed
