Laser Hair Reduction: 8 Common Myths and What Actually Happens

How Laser Hair Reduction Works

A laser sends light of a specific wavelength into the skin. The dark pigment (melanin) in the hair absorbs this light and turns it into heat. The heat travels down the hair to the follicle and damages the cells that produce new hair. Because the energy targets pigment, two things matter a lot: the contrast between your hair colour and skin colour, and the growth stage each hair is in at the time of treatment.

Myth 1: One Session Removes Hair Forever

Fact: hair grows in cycles. At any one time, only part of your hair is in the active growth phase (anagen), and only those hairs are properly connected to the follicle and respond fully to the laser. That is why a course of six to eight sessions is usually needed, spaced four to six weeks apart on the body and around four weeks apart on the face.

After a full course, most people see a large, long-lasting reduction. The hair that does grow back is usually finer, lighter and slower to appear. Some people, especially those with hormonal conditions such as PCOS, may need occasional maintenance sessions, because hormones can activate new follicles over time.

Myth 2: Laser Does Not Work on Indian Skin

Fact: older lasers had trouble telling the difference between dark skin and dark hair, which increased the risk of burns. Modern diode lasers (808 nm) and Nd:YAG lasers (1064 nm) reach deeper into the skin and are much safer for medium and darker skin tones when the settings are chosen correctly. A careful technician will assess your skin type, do a patch test first and increase the energy gradually over sessions.

Myth 3: It Is Extremely Painful

Fact: most people compare the feeling to the warm snap of a rubber band. Diode machines with contact cooling chill the skin during each pulse, which makes the treatment much more comfortable than waxing. Sensitive areas like the upper lip and bikini line feel sharper, but each session is short. Underarms take around ten to fifteen minutes.

Myth 4: Laser Works on All Hair Colours

Fact: because the laser targets pigment, it does not work well on white, grey, very light blonde or red hair. If most of the hair in an area is grey, laser will not be effective and you should consider other methods. Fine, light facial fuzz also responds poorly, and in some people treating it can even stimulate thicker growth, so it is often better left alone.

Myth 5: Laser Causes Cancer or Infertility

Fact: cosmetic hair-reduction lasers use non-ionising light, which is completely different from X-rays or radioactive radiation. The light reaches only a few millimetres into the skin, down to the hair follicle. It does not reach internal organs and does not alter DNA. As a precaution, we do not treat clients who are pregnant.

Myth 6: You Can Wax or Thread Between Sessions

Fact: waxing, threading, plucking and epilators pull out the hair root, which is exactly what the laser needs to target. Stop these methods at least four weeks before starting laser and do not use them at all during your course. Shaving is fine because it leaves the root in place. Shave the area about 24 hours before each session.

Myth 7: Sun Exposure Does Not Matter

Fact: tanned skin contains more melanin and absorbs more laser energy, which increases the risk of burns and dark patches. Avoid sunbathing and long periods in strong sun for two weeks before and after each session, and apply a broad-spectrum SPF 30 to 50 sunscreen on treated areas every day. If you arrive with a fresh tan, your technician may lower the settings or postpone the session.

Myth 8: Anyone Can Have Laser at Any Time

Fact: laser is not suitable for everyone at every moment. Tell your technician if you are pregnant, have taken isotretinoin for acne in the last six months, use medicines that make the skin sensitive to light, have an active skin infection, cold sores, eczema or open wounds in the area, or have a history of keloid scars. If you are not sure, consult a dermatologist before you start.

Aftercare After Each Session

• Mild redness and small bumps around the follicles are normal and usually settle within a few hours to a day.
• Apply aloe vera gel or a soothing, fragrance-free moisturiser. A cool (not ice-cold) compress helps if the area feels warm.
• Avoid hot showers, saunas, swimming and heavy workouts for 24 to 48 hours.
• Skip scrubs, retinol and exfoliating acids on the treated area for a few days.
• One to three weeks after a session, treated hairs may seem to grow and then fall out. This is normal shedding, not regrowth.

If you notice blisters, crusting or dark patches, contact your clinic straight away rather than waiting for the next session. For more on what we offer, see our laser studio page.