How Long You Can Expect Laser Hair Removal to Last

If you’re tired of shaving, waxing, or dealing with ingrown hairs, laser hair removal might sound like a dream solution. But how long does laser hair removal actually last and is it truly permanent?

Here’s what you need to know about this popular cosmetic treatment, including how it works, how long results last, and what to expect during and after each session.

What Is Laser Hair Removal?

Laser hair removal is a noninvasive treatment that targets hair follicles using a focused beam of light. The laser’s energy is absorbed by the melanin (pigment) in the hair, which then heats and damages the surrounding follicle to slow or stop future growth.

However, hair grows in cycles and lasers can only target actively growing hairs which means you’ll need multiple sessions to treat all the follicles in a given area.

Is Laser Hair Removal Permanent?

While laser hair removal significantly reduces hair growth, it isn’t technically permanent. Most people enjoy months to years of smooth, hair-free skin after completing their initial series of treatments.

Some important facts to know:

• After 4 to 6 sessions, most people see a 75% to 90% reduction in hair growth.

• Regrowth, if it happens, tends to be lighter, thinner, and slower.

• Maintenance sessions may be needed every 6 to 12 months, depending on your body and hormonal balance.

• Hair on the face, particularly for women, is more likely to grow back due to hormonal fluctuations.

How Long Does It Last?

Most people experience long-lasting results with little to no hair for several months up to a few years. But keep in mind:

• Each session only treats 15% to 30% of hair follicles

• Full results typically require 6 or more treatments

• Ongoing maintenance may be needed, especially for areas affected by hormones, like the upper lip or chin

Does Hair or Skin Color Matter?

Yes. Skin and hair color both impact how effective laser treatments are:

• Best results: Light skin + dark hair

• Challenging cases: Light hair (blonde, gray, red) or darker skin tones, due to how melanin absorbs the laser energy

New technology, such as the Nd YAG laser, now makes laser hair removal safer and more effective for people with darker skin tones, reducing risks like burns or hyperpigmentation.

Does Laser Hair Removal Hurt?

Most people describe the sensation as a mild sting or similar to a rubber band snap against the skin. Discomfort is usually brief, and cooling gels or numbing creams can be used for added comfort.

After the treatment, you might experience:

• Redness or swelling

• Skin sensitivity, similar to a mild sunburn

These side effects typically resolve in 1 to 3 days.

Is It Safe?

Yes when performed by a trained professional, laser hair removal is considered safe. However, like any procedure, there are potential risks:

Common (temporary) side effects:

• Redness

• Swelling

• Mild discomfort

Less common risks:

• Burns or blisters

• Hyperpigmentation or hypopigmentation

• Infection or scarring

• Cold sore flare-ups (if treating around the mouth)

Following aftercare instructions—like avoiding sun exposure and harsh skincare—can help minimize side effects.

Cost of Laser Hair Removal

According to the American Society of Plastic Surgeons, the average cost for a series of laser treatments is around $582, but this varies depending on:

• Treatment area size (smaller areas like the upper lip cost less; larger areas like the back or legs cost more)

• Location and provider

• Number of sessions needed

Note: Laser hair removal is typically not covered by insurance since it's considered cosmetic.

When to Avoid Laser Hair Removal

Laser hair removal is generally safe, but it’s not right for everyone. Avoid treatment if you:

• Have open wounds, active infections, or cold sores

• Are pregnant or breastfeeding (consult your doctor)

• Are using certain medications that increase photosensitivity

• Have eczema or psoriasis in the treatment area

• Are heavily tanned or have had recent sun exposure

The Bottom Line

Laser hair removal offers long-lasting smooth skin with less hassle than shaving or waxing but it’s not a one-and-done treatment. After completing a series of sessions, most people enjoy reduced hair growth for months or even years. And while it’s not completely permanent, it’s a highly effective way to significantly reduce unwanted hair over time.

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