Hair Removal - Lasers Explained - Dr Nathan Holt (2024)

To ensure superior results for all the different combinations of hair types and skin colour, multiple laser wavelengths are required. We offer the entire range of 3 laser systems and IPL enabling us to take advantage of each technologies strengths but not be limited by its weaknesses.

Expert hair removal requires a highly skilled laser operator who has the ability to safely alter the following laser parameters

  • Wavelength (colour of light)
  • Pulse Width (shutter speed)
  • Spot size (measured usually in mm)
  • Fluence (power)

The appropriate selection ensures optimal destruction of the hair follicle without collateral damage to the surrounding skin.

Laser Wavelength (Colour of light)

The selection of the most appropriate laser wavelength is essential as it enables

  • The safe treatment of all skin types. Lighter skin types respond well to the Alexandrite 755nm laser whilst darker skin types respond to the Nd Yag 1064nm laser. The diode 810nm laser is very useful for moderate skin types.
  • Effective treatment of multiple depths of hair follicles. The base of the hair follicle can lie between 2 to 7mm below the skins surface and hence, some hair follicles are superficial (e.g. upper lip) whilst others are much deeper (e.g. Bikini). Optimal results hence require multiple laser wavelengths enabling the operator to target all the follicles situated at different depths.
  • The treatment of different colours of hair. Effective treatment of light coloured fine hair requires a laser with a high attraction to melanin such as the Alexandrite 755nm laser. Darker thicker hairs will respond better to the diode 810nm laser or Nd Yag 1064nm laser.

Laser Pulse Width (Shutter speed)

Hair Removal - Lasers Explained - Dr Nathan Holt (1)The selection of the appropriate pulse width is essential as it enables the operator to target hairs of different diameters.

  • Fine hairs heat up quickly but are unable to hold the heat and require short pulse widths usually in the range of 5-10ms.
  • Thicker hairs heat more slowly and hence require much longer pulse widths usually ranging from 40-60ms.

Often as a course of laser hair removal progresses, the follicles miniaturize and hair becomes finer requiring a reduction in pulse width to ensure continued effective treatment.

Laser Spot Size

Small spot sizes are most effective for the treatment of smaller superficial hair follicles, while larger spot sizes are ideal for deeper targets. The larger the spot size the deeper the laser penetration.

Bigger spot sizes also enable the operator to rapidly treat larger body areas with comfort and ease.

Superior results are hence achieved with a large range of different spot sizes.

Spot Size and Depth of Optical Penetration

Hair Removal - Lasers Explained - Dr Nathan Holt (2)

Laser Power (Fluence)

The more powerful the laser the better the outcome. Any cheap low powered laser system can induce a temporary hair loss lasting between 1-3 months. Permanent hair reduction requires high quality lasers that can produce the large amounts of power needed to heat the follicle to 65-70 degrees centigrade ensuring irreversible damage to the hair.

Gold Standard hair removal lasers should be capable of delivering the following types of energy.

  • Short pulse durations with high peak power enabling energy to be confined to smaller hair follicles.
  • Longer pulse durations with low peak power to slowly heat larger hair follicles.

Hair Removal - Lasers Explained - Dr Nathan Holt (3)The use of high quality lasers with variable wavelengths, variable pulse durations, variable spot sizes and variable fluences enable a skilled laser operator to achieve far superior results.

Irrespective of the hair colour, skin colour, hair thickness or follicle depth we have a laser for all prospective clients.

The majority of clinics in the UK utilize IPL (Intense Pulsed Light) to deliver hair removal. This is often incorrectly termed Laser Hair Removal (An IPL device is not a laser it is a light source) and described as the superior method of hair removal.

It is clinically proven that IPL is as a rule far less effective at a given task than a laser dedicated to that purpose.

A high quality laser must be accompanied by a skilled operator for superior results.

Because we offer the entire range of laser hair removal treatments, we can truly recommend the option that is best suited to your needs. Whatever we recommend, you can be assured that we are not using it because it is all we have to offer but because it is the best choice for you.

Our expert medical team has in excess of 30 years laser experience and have completed more than 150,000 successful treatments. Rest assured you are in safe hands. All procedures at our Cambridge Laser Clinic are performed by fully qualified doctors, nurses and practitioners.

To ensure the highest ethical standards are maintained at all times, our staff are never offered bonus incentives to sell treatments.

Although medical laser clinics are no longer regulated by the CQC (Care Quality Commission), we continue to adhere to the strict standards that were in the past mandatory under government legislation. This is the best indicator currently available that our Cambridge Laser Clinic is trustworthy.

All consultations are free of charge so why not call our team of experts today?

Hair Removal - Lasers Explained - Dr Nathan Holt (2024)

FAQs

Hair Removal - Lasers Explained - Dr Nathan Holt? ›

Lasers and IPLs deliver a short pulse of light onto the skin's surface. The light energy is converted into heat within the hair follicle. Heating the follicle prevents further regrowth of the hair. Lasers emit high energy at one specific wavelength (colours) in a single beam of light.

What are the 3 types of lasers for hair removal? ›

There are various kinds, including diode, alexandrite, and Nd:YAG. “The diode laser is the Mercedes-Benz of all lasers,” says Fusco.

What laser hair removal do the Kardashians use? ›

The Kardashian-Approved Laser Treatments

Kim often does her treatments late at night and is believed to use at-home laser devices. Khloe and Kylie, on the other hand, visit Sev Laser for Candela GentleMax Pro treatments.

Which laser is most effective for hair removal? ›

Effective treatment of light coloured fine hair requires a laser with a high attraction to melanin such as the Alexandrite 755nm laser. Darker thicker hairs will respond better to the diode 810nm laser or Nd Yag 1064nm laser.

Which is better IPL or diode? ›

To conclude, diode lasers are better for hair reduction and pigmentation removal, while IPL lasers can be more versatile and can address a wider range of skin concerns. The choice between the two will depend on the specific needs and goals of the patient.

What is the difference between candela and Alexandrite laser? ›

Candela brand of Alexandrite has a larger spot size of 18mm as opposed to Cynosure brand of Alexandrite with their 15 mm spot size. The 69% larger spot size means for large areas, it is much faster.

How do the Kardashians stay hairless? ›

There are two treatments that Kim Kardashian (the most famous Kardashian of the bunch) has admitted to getting: Botox and laser hair removal. That's right. We may not have access to everything Kim Kardashian does to achieve her look, but we certainly have access to laser hair removal.

Do Victoria Secret models get laser hair removal? ›

Most Victoria's Secret models use laser hair removal methods. As they need to be on camera most of the time, they don't have the leisure to perform those hair removal methods which need to be repeated after some days or months.

What is the difference between Brazilian and Hollywood laser hair removal? ›

What is Hollywood /Brazilian hair removal? Hollywood hair removal is the complete removal of all the pubic hair, from the front, between the legs, and between the buttocks, while Brazilian hair removal leaves behind a strip of hair at the front. Treatment is either by Hollywood Laser Hair Removal or by waxing.

Do people ever regret laser hair removal? ›

But, as with any treatment that ends with more or less permanent results, not everyone is pleased with their decision. While some feel freedom after banishing all the hair on their bodies for good, others express deep regret — especially given how the conversation around body hair has shifted in recent years.

What is negative to laser hair removal? ›

Risks of side effects vary with skin type, hair color, treatment plan and adherence to pre-treatment and post-treatment care. The most common side effects of laser hair removal include: Skin irritation. Temporary discomfort, redness and swelling are possible after laser hair removal.

Why do I look hairier after laser hair removal? ›

The appearance of increased hair growth after laser hair removal can be concerning, but it's important to understand that this is a normal part of the treatment process. Hair shedding, hair growth cycles, and misconceptions about hair growth can all contribute to the perception of increased hairiness.

At what age is laser hair removal most effective? ›

One great thing about this treatment is that it's effective at any age. Whether you are 19 or 89, this treatment is the best way to permanently reduce your hair. The best time for you to seek treatment is whenever you realize that you have unwanted hair that you would be happier without.

Should I laser my pubic hair? ›

' Yes, it is safe to laser the pubic area for most patients. It should be noted that this is one of the more sensitive areas when it comes to laser hair removal, but it is quick and effective. Many patients also believe it is overall less painful than waxing.

Is there something better than laser hair removal? ›

Electrolysis is considered a more permanent solution than laser hair removal (it stops hair growth completely while laser hair removal slows and reduces hair growth), but it requires more individual sessions (closer to 14), and the sessions can take longer. You might not see full results for nearly 18 months.

What is the difference between diode and YAG laser hair removal? ›

Diode laser hair removal destroys hair follicles by targeting melanin whereas YAG laser hair removal penetrates the hair through the skin cells. This makes diode laser technology more effective for coarse hair and requires a shorter recovery time.

What is the difference between diode and Alexandrite laser? ›

The Diode Laser, which is much less efficient than the Alexandrite, has the advantage that it is cheaper and more compact. This also makes it easy to transport. The Diode operates on a wavelength from 810 to 980 nm, so it has a wider spectrum than the Alexandrite and the Nd-Yag.

What is a Type 3 laser? ›

Class 3-Medium Power Lasers and Laser Systems (top)

Class 3 lasers are medium power lasers or laser systems that require control measures to prevent viewing of the direct beam.

What type of laser is used for permanent hair removal? ›

Nd: YAG Lasers

They are proven effective, fast and safe methods for successful hair removal and permanent hair reduction. Your dermatologist will select the laser most appropriate for you depending on your hair and skin type and area of the body.

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