Skip to content

A prospective, randomized, split-face comparative study to evaluate the efficacy and safety of 675-nm Red Laser in eyebrow enhancement

A prospective, randomized, split-face comparative study to evaluate the efficacy and safety of 675-nm Red Laser in eyebrow enhancement

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20251212003
Enrollment
25
Registered
2025-12-12
Start date
2025-03-13
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients with eyebrow thinning graded as level 1 or 2 according to the Allergan Global Eyebrow Assessment (GEBA) scale eyebrow enhancement

Interventions

Patients underwent ten sessions of 675-nm laser treatment on one randomly selected eyebrow (the same side at every visit), administered twice weekly for five consecutive weeks.,No treatment
Experimental Device,No Intervention No treatment
675- Laser,No treatment

Sponsors

Woraphong Manuskiatti
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1.Male or female patients 2.Age 20 - 60 years old 3.Patients with eyebrow thinning graded as level 1 or 2 according to the Allergan Global Eyebrow Assessment (GEBA) scale

Exclusion criteria

Exclusion criteria: 1.Patients with a history of hair disorders other than androgenetic alopecia. 2.Patients with pregnancy or breastfeeding 3.Patients with a history of collagen disorders such as Cushing syndrome or Ehlers-Danlos syndrome. 4.Patients who have previously undergone laser therapy or radiotherapy on the eyebrows. 5.Patients with any scars on the eyebrows. 6.Patients with dermatitis, wounds, or skin infections in the treatment area. 7.Patients with a history of thyroid disease or liver disease. 8.Patients with a history of cancer, currently receiving cancer treatment, or with skin cancer in the treatment area. 9.Patients with a history of immunodeficiency, including HIV infection or AIDS. 10.Patients with a history of abnormal photosensitivity. 11.Patients who have received topical and/or oral medications, platelet-rich plasma injections, or alternative treatments deemed by the investigator to potentially affect the study within 3 months before enrollment. 12.Patients with a history of hormone therapy or contraceptive use, both oral and injectable. 13.Patients with a history of psychiatric disorders.

Design outcomes

Primary

MeasureTime frame
Hair count 1st treatment, 5th treatment, 1 month, 3 months, 6 months Trichoscan,Hair Density 1st treatment, 5th treatment, 1 month, 3 months, 6 months Trichoscan,Hair Thickness 1st treatment, 5th treatment, 1 month, 3 months, 6 months Trichoscan

Secondary

MeasureTime frame
Pain score 1st-10th treatment Visual Analog Scale, Safety 1st-10th treatment Adverse event

Countries

Thailand

Contacts

Public ContactWoraphong Manuskiatti

Faculty of Medicine Siriraj Hospital

woraphong.man@mahidol.ac.th024197000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026