Hair Growth After Laser Epilation (Paradoxical Hypertrichosis)

Some people who have laser epilation may notice an increase in their hair instead of a decrease after the procedure. This condition is called paradoxical hypertrichosis. So, what causes it and how can it be prevented?

1. What Causes Hair Growth After Laser?

✔ Using the Wrong Laser Type: Alexandrite laser can thicken thin hair in sensitive areas such as the face. Therefore, Diode or ND:YAG laser should be preferred in the face area.
✔ Low Energy Level: If the laser is not powerful enough to completely destroy the hair root, it can stimulate the hair roots and cause the hair to grow stronger.
✔ Hormonal Factors: Hair growth may increase after laser in people with hormonal disorders such as polycystic ovary syndrome (PCOS).
✔ Differences According to Region: The risk of hair growth after laser is higher especially in the face, neck and back areas.

2. How to Prevent Hair Growth?
✔ Choosing the Right Laser: Alexandrite should be preferred for people with light skin, and ND:YAG or Diode laser should be preferred for people with dark skin.

✔ Using the Appropriate Energy Level: It is important that the laser device is applied at the correct dose by a specialist.

✔ Checking the Hormonal Status: If there is a hormonal problem, it may be useful to consult an endocrinologist before laser.

3. What to Do If Hair Increases?
✔ It may be necessary to change the laser type or increase the energy level by consulting the specialist performing the procedure.
✔ Supportive sessions can be performed with different types of lasers to eliminate thinned hair again.
✔ If hair growth increases after laser, it is recommended to continue the treatment without interruption, because sessions will reduce hair in the long term.