Author : Dr Élodie Marchand, MD, PhD — Chief Scientific Officer, LumiLab Paris
1. Background & Objectives
Red‑light photobiomodulation (630‑660 nm) triggers collagen synthesis and improves skin homeostasis. The Lumyria™ Halo Red mask houses 120 LEDs at 635 nm with ±5 % even diffusion (patent pending).
This in‑house study aimed to :
- Quantify skin firmness changes after 4 weeks;
- Evaluate user satisfaction (texture, glow, tone);
- Confirm tolerance on phototypes I–IV.
2. Methodology
| Parameter | Details |
|---|---|
| Design | Open‑label, single site, 4 weeks |
| Participants | 35 women, 28–57 yrs (mean 41 ± 7) |
| Protocol | 10 min / day, 5 days / week — cleansed skin, no actives |
| Instrumental measures | Cutometer® R0/R2 (firmness); Colorimeter ITA° (glow) |
| Self‑assessment | 5‑item Likert questionnaire |
| Safety | Derm eval D0 & D28 ; adverse‑event log |
3. Key Results
| Criterion | Day 0 | Day 28 | Change |
|---|---|---|---|
| Firmness (R2) | 0.63 ± 0.07 | 0.73 ± 0.06 | +15.9 %† |
| Glow (ITA°) | 21.4 ± 3.2 | 25.8 ± 3.5 | +4.4 pts |
| Self‑reported “firmer skin” | — | 92 % agree / strongly agree | |
| Tolerance | 0 major reactions; 2 transient tinglings (Day 1–3) | ||
† Statistically significant, p < 0.01 (paired t‑test).
4. Discussion
The 16 % firmness boost matches published data for 630‑640 nm exposure. As no active cosmetics were used, improvements can be attributed to LED therapy. Safety profile was excellent. Limitations : small cohort, open design, short duration. A 12‑week randomized controlled trial is underway.
5. Conclusion
92 % of participants felt their skin was firmer after 4 weeks, with instrumental gains in firmness and radiance, confirming Lumyria™ Halo Red as an effective at‑home anti‑ageing solution.
6. Quick References
- Avci P. et al. Photonics in Skin Rejuvenation. Semin Cutan Med Surg. 2013.
- Barolet D. LEDs in Dermatology. Clin Plast Surg. 2016.
- Na J‑I. Red LED on Skin Laxity. Dermatol Surg. 2020.
Legal note — Class I device, CE marked. Internal study report #LUM‑IR‑25‑01. Results may vary. This content is for informational purposes and does not replace personalized medical advice.