Considering a laser cap or comb during GLP-1 treatment? Start with the diagnosis.

What the trials tested

In four 2014 US sham-controlled trials, 269 adults with pattern hair loss were randomized; 225 entered efficacy analyses. Lasercombs increased terminal hair density more than sham devices after 26 weeks. Participants used them three times weekly. [2]

Read the limitations

Lexington International partly funded the study and supplied devices. Some investigators received company fees. Scalp dryness and irritation occurred. Forty-four participants were lost to follow-up; 94.7% were White. The 26-week endpoint does not establish lasting benefit. These trials did not test GLP-1 shedding or every retail cap. [2]

This is US guidance and research, not a GLP-1 recovery guarantee. See our hair-shedding guide.

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This article provides general education, not a diagnosis or an individual treatment plan. Medication information refers to US sources. Discuss medication, nutrition and cosmetic treatment decisions with qualified clinicians.

Read next

Hair & nailsBiotin on GLP-1: Hair, Nails and Blood-Test QuestionsHair & scalpScalp Flakes on GLP-1: Using Dandruff Shampoo

Sources

  1. Hair loss: Diagnosis and treatmentAmerican Academy of Dermatology↩ Back to text
  2. Efficacy and Safety of a Low-level Laser Device in the Treatment of Male and Female Pattern Hair Loss: A Multicenter, Randomized, Sham Device-controlled, Double-blind StudyJimenez et al., American Journal of Clinical Dermatology, 2014↩ Back to text