Is it the 1450 nm laser or just the cooling? A split-face test
Short answer
Twenty people had one side of the face treated with a 1450 nm diode laser plus cooling spray and the other side with cooling alone. Six months after 2–4 treatments, 13 of 20 showed improvement on the laser side and none on the cooling-only side, suggesting the effect came from the laser itself.
- Study
- Goldberg DJ, Rogachefsky AS, Silapunt S. Lasers Surg Med. 2002;30(2):79-81.
- Design
- Split-face comparison
- People
- 20
- Topic
- Facial wrinkles
- Source
- PubMed 11870784 · DOI 10.1002/lsm.10011
Why it matters
1450 nm is the wavelength used by NIRA’s non-fractional home laser. This clinic study tested whether that wavelength improves wrinkles.
What they did
- Enrolled 20 people aged 42–70 with skin types I–IV and mild to moderate wrinkles.
- Treated one side with a 1450 nm diode laser and cryogen cooling, the other with cooling only.
- Evaluated six months after the final treatment.
What they found
- 13 of 20 people improved on the laser side.
- No one improved on the cooling-only side.
- The authors conclude the improvement is a direct laser effect.
What it cannot tell you
- Clinic device at clinic energy, not a home laser.
- Small sample; skin types V–VI not included.
- Improvement was assessed clinically without a detailed scale in the abstract.
Takeaway
1450 nm laser heating can improve mild wrinkles in clinic settings. Home devices use much lower energy, so this shows the principle, not home results.
Matching devices
Devices whose published technology match this study: NIRA Pro 3. None of them was the device tested unless the study names it.
Not medical advice. Summary based on the published abstract; read the full paper for detail.