In the modern beauty industry, laser hair removal has become a popular way to remove body hair. Compared with traditional shaving, depilatory creams, waxing and other methods, laser hair removal has a longer-lasting hair removal effect and is relatively gentle and less irritating during the treatment process.

However, many people who are new to laser hair removal have some questions, such as: "What is the principle of laser hair removal machine?" "Is laser hair removal really safe?" "How should I care before and after hair removal?" If you are considering laser hair removal, it is very important to master the relevant knowledge before officially starting the treatment.

This article will focus on the key issues of laser hair removal to help you fully understand the basic principles of laser hair removal, the applicable population, precautions, and how to choose the right laser hair removal machine, so that you can be fully prepared before the treatment.

What is laser hair removal? How does it work?

Laser hair removal is a method of destroying hair follicle tissue by applying laser energy of a specific wavelength to hair follicles to achieve the purpose of long-term or permanent reduction of hair growth. The laser hair removal machine emits a laser of a specific wavelength. The light energy is absorbed by the melanin in the hair follicles and converted into heat energy, which raises the temperature of the hair follicles and eventually destroys the hair follicles, preventing them from growing new hair. Since the laser can act on the hair follicles precisely without causing much damage to the surrounding skin, this method is considered a safe and effective hair removal technology.

The key principles of laser hair removal include the following:

● Photothermal effect: The laser heats and destroys the hair follicles through light energy of a specific wavelength, preventing hair regeneration.

● Selective absorption: Since the melanin in the hair follicles absorbs light energy much higher than the surrounding tissues, the laser can act on the hair follicles precisely without causing excessive damage to the skin.

● Effect on the hair growth cycle: The hair growth cycle is divided into the growth phase, the resting phase, and the regression phase. Laser hair removal is most effective for hair follicles in the growth phase, so multiple treatments are usually required to ensure that hair at different stages is covered.

Who is suitable for laser hair removal?

Although the laser hair removal machine can effectively remove body hair, not everyone is suitable for this treatment. Here are some categories of people who are suitable or not suitable for laser hair removal:

Suitable people:

● People with darker hair: The laser hair removal machine mainly relies on melanin to absorb light energy, so dark hair is more likely to absorb laser light and the hair removal effect is better.

● People with fair skin: Since laser light is easily absorbed by melanin, fairer skin can reduce the impact of laser light on the surrounding skin and reduce the risk of pigmentation or burns.

● People who want to reduce body hair: Whether women want to remove hair from their armpits, legs, and bikini lines, or men want to reduce hair on their backs, chests, and arms, the laser hair removal machine can provide lasting hair removal results.

Not suitable for people:

● People with too light hair: Blonde, white, or gray hair has a low melanin content, and it is difficult for laser light to effectively act on hair follicles, so the hair removal effect may be poor.

● People with skin diseases: Skin problems such as skin inflammation, eczema, and psoriasis may increase the discomfort after laser hair removal and even cause complications.

● Pregnant or breastfeeding women: Since there is not enough research data on the safety of laser hair removal machine for pregnant women, laser hair removal is not recommended for pregnant women.

● People with a history of photosensitivity or photosensitivity diseases: For example, some people are sensitive to sunlight, or take certain photosensitizing drugs (such as antibiotics, certain contraceptives, etc.), these factors may increase the risk of adverse reactions after laser treatment.

How to choose a suitable laser hair removal machine?

On the market, different types of laser hair removal machines have different wavelengths and technical characteristics, suitable for different skin colors and hair types. The following are several common types of laser hair removal machines and their applicable scope:

1. 808 laser hair removal machine

The 808 laser hair removal machine is a semiconductor laser hair removal device that uses an 808 nanometer wavelength. This wavelength of laser can penetrate the surface of the skin and reach the deep layer of the hair follicles, while causing less damage to the skin, so it is widely used in professional hair removal institutions.

Advantages of the 808 laser hair removal machine:

● Suitable for most skin colors and hair types, especially for dark hair.

● Less pain, comfortable treatment process, and cooling system can reduce thermal damage.

● Short treatment time, suitable for large area hair removal (such as legs, back).

2. 755nm Alexander laser

● Suitable for people with fair skin and fine hair, especially for facial and arm hair removal.

● There may be certain risks for dark skin, and pigmentation is prone to occur.

3. 1064nm Nd:YAG laser

● Suitable for people with darker skin, can reduce damage to the epidermis.

● Compared with 808 laser hair removal machine, it may be more painful.

Choosing a suitable laser hair removal machine can not only improve the treatment effect, but also reduce the risk of side effects. Therefore, it is recommended to select the appropriate equipment after professionals evaluate the skin color and hair type in a formal institution.

What preparations need to be made before laser hair removal?

Before receiving laser hair removal machine hair removal, follow the following preparations to ensure a smoother treatment process and reduce the potential risk of side effects.

1. Avoid sun exposure

In the 2 weeks before using the laser hair removal machine for hair removal, you should try to avoid prolonged exposure to the sun, because ultraviolet rays will increase the sensitivity of the skin and increase the risk of burns and pigmentation.

2. Stop using certain skin care products or drugs

Some whitening products, fruit acid skin care products, and photosensitive drugs (such as certain antibiotics, contraceptives, etc.) may increase the skin's sensitivity to lasers, so you should inform your doctor in advance and suspend the use of related products according to the advice.

3. Shave the surface hair

1-2 days before the laser hair removal machine treatment, you should use a razor to shave the hair on the treatment area so that the laser can better act on the hair follicles without the hair shaft absorbing too much energy.

4. Avoid other hair removal methods

Avoid using methods such as waxing and epilators to remove hair within 4 weeks before laser hair removal, because these methods will destroy the hair follicle structure and affect the effect of the laser.

Care and precautions after laser hair removal

After laser hair removal, the skin may experience slight redness or sensitivity. The following care measures can help the skin recover quickly:

● Cold compress to relieve discomfort

● Keep the skin clean and avoid scrubbing

● Use mild moisturizing products

● Avoid high temperature environments such as saunas and hot baths

● Use sunscreen to protect the skin

Before laser hair removal, it is crucial to understand the working principle of the laser hair removal machine, the applicable population, equipment selection, and pre- and post-operative care measures. The 808 laser hair removal machine is one of the most popular laser hair removal devices due to its high efficiency, safety, and comfort.

Wholesale Beauty & Personal Care Devices – Buy Direct from KuoHai Factory

As a professional beauty equipment manufacturer, KuoHai provides factory-direct pricing, customized OEM services, and bulk discounts on a wide range of beauty and home care devices. Our product line includes laser hair removal tools, body slimming machines, facial skincare devices, and smart home appliances. We offer low-cost wholesale deals for retailers, importers, and distributors worldwide. Contact us today for supplier quotes and factory promotions.