Clinical Guide · LovMedSpa Reviews
What each LED wavelength actually does, the skin concerns it treats, and what to expect from a clinical LED session at a med spa. Non-thermal, non-invasive, FDA-cleared for specific indications.
LED (light-emitting diode) therapy delivers narrow bands of visible and near-infrared light to the skin. Each wavelength is absorbed by a specific chromophore — collagen-producing fibroblasts, acne bacteria, melanin, or hemoglobin — and triggers a measurable cellular response. There is no heat, no UV, and no downtime.
The mechanism is called photobiomodulation: photons are absorbed by cytochrome c oxidase in the mitochondria, increasing ATP production and downstream collagen synthesis, anti-inflammatory signaling, and tissue repair. It is one of the most-studied non-invasive aesthetic modalities, with FDA clearances for wrinkles, acne, and musculoskeletal pain.
Red light (≈ 630–660 nm)
Red wavelengths penetrate ~1–2 mm into the dermis and stimulate fibroblasts to produce collagen and elastin. Clinical use: fine lines, dull tone, post-procedure recovery, and reducing erythema after laser or microneedling.
Near-infrared (≈ 830–880 nm)
NIR reaches subcutaneous tissue and supports mitochondrial ATP production. Used alongside red light for deeper wrinkles, joint soreness, and accelerated wound healing.
Blue light (≈ 405–420 nm)
Blue light destroys Cutibacterium acnes (the bacterium behind inflammatory acne) by activating its porphyrins. Best for active breakouts and oily T-zones; not a substitute for prescription therapy in severe acne.
Green light (≈ 520–550 nm)
Green wavelengths target melanocytes and superficial vascular irregularities. Used to calm melasma, sunspots, broken capillaries, and overall blotchy tone. Often paired with red for combination skin concerns.
Yellow / amber (≈ 580–590 nm)
Yellow light reduces redness and lymphatic congestion. A go-to for rosacea-prone skin and post-injectable bruising.
Combination protocols
Most clinical LED beds and panels deliver multiple wavelengths in one session (e.g. red + NIR + blue) so a single 15–20 minute treatment can target collagen, acne, and inflammation simultaneously.
| Skin concern | Wavelengths used |
|---|---|
| Fine lines & early aging | Red + Near-infrared |
| Active inflammatory acne | Blue + Red |
| Melasma & sunspots | Green (+ Red for tone) |
| Rosacea & redness | Yellow + Green |
| Post-laser / post-microneedling recovery | Red + Near-infrared |
| Dull tone & uneven texture | Red + Green |
| Scar softening | Red + Near-infrared |
| Hair-loss support (scalp) | Red (650 nm low-level laser) |
LED is offered at all five LovMedSpa locations — as a stand-alone session or paired with HydraFacial, microneedling, peels, and injectable recovery.
New to med spas? Read our independent buyer's guide to choosing a med spa before booking.
