Laser hair removal is an effective method to achieve smooth, hair-free skin in a long-lasting way. However, to maximize the results, it is essential to understand the hair growth cycle. This cycle plays a crucial role in the effectiveness of laser hair removal sessions and explains why multiple sessions are necessary to achieve optimal results.

The hair follows a growth cycle in three phases: the anagen phase (growth), the catagen phase (transition), and the telogen phase (rest). Each phase influences how the hair reacts to laser treatment.

• Anagen Phase (Growth Phase): During this phase, the hair is in full growth. The hair root is well anchored in the hair follicle and is in direct contact with the dermal papilla, which nourishes the hair. This phase can last from a few weeks to several years, depending on the area of the body and individual characteristics. Laser hair removal is most effective during this phase because the hair is connected to the dermal papilla, allowing the laser to destroy the hair follicle and prevent regrowth.
• Catagen Phase (Transition Phase): This phase is a transition period during which hair growth stops and the hair follicle begins to retract. The connection between the hair and the dermal papilla is broken. The catagen phase generally lasts two to three weeks. Since the hair is detaching from the follicle, the laser is less effective because it does not reach the hair root optimally.
• Telogen Phase (Resting Phase): During this phase, the hair is completely detached from the dermal papilla and rests in the follicle. After this phase, the hair naturally falls out and a new growth cycle begins. The telogen phase can last several months. Since the hair is no longer connected to the dermal papilla, the laser cannot effectively destroy the follicle. The hair treated during this phase will grow back later.

Why Multiple Laser Hair Removal Sessions Are Necessary

The hair growth cycle varies from person to person and depending on the different areas of the body. On average, about 20% to 30% of hairs are in the anagen phase at any given time. Since laser hair removal is most effective during this phase, multiple sessions are necessary to treat all the hairs as they enter the anagen phase.

Frequency of Sessions

To maximize the results of your permanent hair removal, it is essential to respect specific intervals between the sessions, depending on the areas of the body being treated. These intervals allow targeting of hairs that enter the anagen growth phase between sessions.

The hair growth cycle varies not only from person to person but also depending on the different parts of the body. The intervals between laser hair removal sessions are adapted to these variations to ensure that hairs are treated optimally when they are in the anagen, active growth phase.

Laser hair removal sessions are generally spaced every 4 weeks for the face, 6 to 8 weeks for the underarms and bikini area, and 10 to 12 weeks for the legs.

Conclusion

Understanding the hair growth cycle is essential to get the most out of laser hair removal. This treatment method requires several sessions to effectively target hairs as they pass through the anagen phase. By respecting the recommended intervals between sessions and being patient, you can achieve long-lasting results and enjoy smooth, hair-free skin.

To learn more about laser hair removal and receive personalized advice, book your free information session now at CLINIK. Our experts are here to support you throughout your journey toward perfect skin.