Is laser hair removal safe?
- How does a laser work and what factors affect the safety of the procedure?
- What are the possible side effects and complications of laser hair removal?
- Is laser hair removal carcinogenic?
- What are the main contraindications to the procedure?
- How to increase the safety of laser hair removal?
- Is at-home IPL hair removal safe?
- Is laser hair removal a painful procedure?
Laser hair removal effectively eliminates unwanted hair. In a process called laser photothermolysis, the light from the laser, absorbed by the melanin in the hair, thermally destroys the hair follicle and its bulb. The best results are achieved when the hair is in the active growth phase (anagen).
To permanently get rid of hair, it is necessary to undergo a series of treatments. Key factors for the safety and effectiveness of hair removal include:
- choosing the appropriate type of laser, tailored to the skin tone and hair color (e.g., diode lasers, alexandrite lasers, Nd:YAG),
- precisely setting the laser power and wavelength,
- selecting an experienced and qualified specialist,
- conducting a detailed consultation before each treatment, including a medical history and a laser test,
- using only professional, certified equipment.
After laser hair removal, transient skin reactions may occur. The skin may be red and slightly swollen. You may feel a burning sensation or irritation. These symptoms usually subside quickly, often within a few hours, although they may persist for several days.
More serious complications are much rarer and usually result from errors during the procedure or the patient not following recommendations. They may include burns, permanent discoloration, and even scarring or skin infections. It is necessary to avoid moles and birthmarks during the procedure to prevent damage to them.
Laser hair removal is safe and does not cause cancer. Laser light, unlike UV radiation, is non-ionizing, which means its energy does not damage the DNA of cells or cause cancerous mutations. Melanin in the skin only absorbs this energy. Numerous scientific studies consistently confirm the lack of a link between this procedure and the development of skin cancer.
However, it is important to remember that active cancer or a history of cancer are absolute contraindications for laser hair removal. Prior medical consultation is always required.
Laser hair removal is a safe method of hair removal, but before the procedure, it is necessary to familiarize yourself with the list of contraindications. The treatment should be postponed in case of:
- pregnancy and breastfeeding,
- recent sun exposure (from the sun, tanning beds, self-tanners),
- active skin diseases such as psoriasis, vitiligo, rosacea, - infections in the area undergoing depilation,
- use of photosensitizing drugs and herbs, including retinoids, certain antibiotics, and St. John's Wort,
- use of exfoliating cosmetics (containing acids such as AHA, BHA, azelaic acid) and chemical peels,
- epilepsy,
- tendency to form keloids,
- certain hormonal disorders (e.g. PCOS) that may reduce the effectiveness of the treatment.
It is worth noting that laser hair removal is not effective for light, grey, or red hair that does not contain a sufficient amount of melanin.
Laser hair removal safety is a shared responsibility of the patient and the specialist. Always choose a clinic with experienced staff and equipment certified for safety. Before the procedure, consult with a specialist to assess your skin and exclude any contraindications for hair removal. It is also essential to prepare your skin for the procedure: avoid sunbathing (sun, tanning beds) and self-tanners for several weeks before the treatment to minimize the risk of complications.
After the procedure, key to care for the skin includes moisturizing and regeneration. Use gentle products such as creams with D-panthenol or aloe vera gel. Avoid hot baths, saunas, and intense physical activity for at least a day after the treatment. Consistent use of high sun protection is extremely important. Protect the treated areas from UV rays by using an SPF 50 sunscreen to prevent discoloration.
Home hair removal devices use Intense Pulsed Light (IPL) technology, which is safe to use. They emit weaker and less precise light than professional lasers. Modern IPL devices are equipped with a range of safety features, such as:
- skin color sensors that automatically adjust the power,
- skin contact sensors that protect against uncontrolled flashes.
IPL hair removal devices effectively reduce hair growth, although they do not eliminate it permanently. For safety reasons, it is always important to follow the instructions for use. Before using such devices, a skin test on a small area is necessary. Remember that IPL technology does not work on very light hair or dark skin.
Feelings during laser hair removal are very individual. Most people describe them as gentle pricking, stinging, or a "rubber band snap." The intensity of these sensations depends on individual pain threshold, sensitivity of the treated area, and hair density and thickness.
Modern laser devices are equipped with advanced cooling systems. They effectively lower the skin's temperature just before emitting the pulse, minimizing discomfort and significantly increasing the treatment's comfort.
Individuals with an exceptionally low pain threshold or those undergoing hair removal on particularly sensitive body parts always have the option to use special numbing creams.