Hair growth / androgenetic alopecia
Low-level laser device multicenter sham-controlled trial for male and female pattern hair loss
Jimenez JJ, Wikramanayake TC, Bergfeld W, et al. American Journal of Clinical Dermatology. 2014.
A multicenter randomized, sham-device-controlled, double-blind trial found low-level laser treatment may be effective for pattern hair loss in men and women.
Evidence grade
moderate
Effect direction
positive
Panel relevance
not-panel-replicable
Key findings
- The PubMed abstract concludes that low-level laser treatment may be an effective option for male and female pattern hair loss.
- This is one of the central sham-controlled RCTs behind the scalp-device evidence base.
- The device-specific protocol is more relevant to hair-growth caps/combs than panels.
Protocol details
| Wavelengths | Not reported nm |
|---|---|
| Irradiance | Not reported mW/cm2 |
| Fluence | Not reported J/cm2 |
| Session time | Not reported minutes |
| Frequency | Not reported |
| Duration | Not reported |
| Treatment area | Scalp |
| Device type | Low-level laser hair-growth device |
Caveats
- Full protocol parameters should be extracted before making dose recommendations.
- Pattern hair loss response differs from generalized claims about thicker hair.