You’ve seen them everywhere — those glowing face masks that look straight out of a sci-fi movie. But if you’ve ever stared at a 7-color LED mask wondering which setting to actually use, you’re not alone.
Here’s what each light does, backed by science, without the jargon.
How LED Light Therapy Works
LED (Light Emitting Diode) therapy uses different wavelengths of light to penetrate the skin at varying depths. Each wavelength triggers a different cellular response — and that’s where the magic happens. No heat, no UV, no damage. Just light doing its job.
The 7 Colors and What They Do
🔴 Red Light (630–700nm) — Anti-Aging The most researched wavelength. Red light penetrates deeply to stimulate collagen production and improve circulation. Use it for: fine lines, firmness, dullness, and overall skin rejuvenation. Best used: daily or 4–5x per week.
🔵 Blue Light (415–445nm) — Acne Control Blue light targets the bacteria (P. acnes) responsible for breakouts and reduces sebum production. Use it for: active acne, oily skin, and preventing new breakouts. Best used: 3–4x per week during breakout periods.
🟢 Green Light (525nm) — Brightening & Calming Green light targets melanin-producing cells to visibly reduce hyperpigmentation, dark spots, and redness. Use it for: uneven skin tone, post-acne marks, and sensitive skin. Best used: 3–4x per week.
🟡 Yellow Light (590nm) — Soothing Yellow light reduces inflammation and stimulates lymphatic drainage. Use it for: redness, rosacea, and skin that feels reactive or irritated. Best used: as needed.
🟣 Purple Light — Red + Blue Combined Purple combines the anti-aging benefits of red with the acne-fighting power of blue. Use it for: acne-prone skin that also shows signs of aging. Best used: 3–4x per week.
⚪ Cyan Light — Red + Green Combined Helps soothe inflammation while supporting skin renewal. Good for sensitive skin dealing with both dullness and reactivity.
⚫ White Light — Deepest Penetration White light penetrates the deepest and helps with overall skin density and circulation. Use it as a finishing step or for mature skin concerns.
Which Color Should You Start With?
If you’re new to LED therapy, start simple:
- Acne-prone? → Blue light
- Anti-aging focus? → Red light
- Dull or uneven skin? → Green light
- All-around maintenance? → Red light (it’s the most universally beneficial)
How Long Per Session?
Most devices recommend 10–20 minutes per session. Consistency matters more than session length — 3–5x per week will outperform one long session on the weekend.
The Bottom Line
LED therapy isn’t a gimmick — it’s one of the few at-home skincare technologies with real clinical backing. Pick your color based on your skin concern, stay consistent, and give it 4–6 weeks to see meaningful results.
👉 Shop our 7-Color LED Light Therapy Face Mask — all wavelengths, one device, spa-quality results at home.