LASER HAIR REMOVAL TREATMENT INTERVALS & GROWTH PHASES
Permanent hair reduction is achieved by using heat to disable the hair follicle and prevent re-growth. The bulb and bulge of the follicle are the areas believed to be responsible for re-growth; these areas are targeted by the Photo Bio Tech Radiant Laser!
Multiple treatments are required to achieve sufficient reduction in hair growth because each hair goes through 3 growth phases (anagen, catagen and telogen) and only the hair follicle in the anagen growth phase can be disabled.
Facial hair: 6-8 week intervals between treatments.
Body hair: 8-10 week intervals between treatments
Back or Leg hair: 10-12 week intervals between treatments
– Hormones, diseases, medication or other factors can affect the treatment outcome.
– Treatments that are spaced too close together may appear to be more successful within the first few treatments but a smaller
percentage of anagen hair may be available as a target thus more treatment sessions may be required for the desired final
– Patients should be assessed before each treatment to determine treatment intervals and settings. Hair may grow back lighter
and finer and settings may need to be adjusted to target this new hair.
– If the patient returns for treatment and there is minimal hair, it may be in a transitional or resting phase. Wait until hair is
actively growing to resume the treatment cycle.
– Facial skin has significantly more hair follicles per cm2 than the body. This is why you can see results within the first three
to four treatments with shorter interval times.
– When in doubt, it is better to space the treatments farther apart than closer together.
Anagen – Active Phase
– The laser light is absorbed by the melanin in the hair shaft reaching the bulb and disabling the hair follicle.
Catagen – Transitional Phase
– Hair bulges & bulbs are beginning to disengage from the hair shaft and treatment is not effective.
Telogen – Resting Phase
– Hair bulge and bulb are disengaged from the hair shaft and treatment is not effective.