If you've ever shaved, waxed, or tweezed unwanted hair only to see it return, you may wonder why body hair keeps growing back. The answer comes down to how each hair removal method affects the hair follicle and the natural hair growth cycle.
Shaving, waxing, tweezing, and laser hair removal work differently. Some methods remove only the visible portion of the hair, while others affect the hair at or below the skin's surface. Understanding these differences can help you choose a method that fits your goals.
Hair does not grow continuously at the same rate. Individual hairs move through different stages of a natural growth cycle.
The active growth stage is particularly important for laser hair removal because hairs respond differently to laser energy depending on where they are in their growth cycle.
Since all hairs are not in the same stage at the same time, a series of laser hair removal treatments is typically needed for significant long-term hair reduction.
Shaving cuts hair at or near the surface of the skin. It does not remove or damage the follicle underneath the skin.
Because the follicle remains intact, the hair continues to grow and eventually becomes visible again.
Shaving also does not make hair grow back thicker. Freshly cut hair can sometimes look or feel coarser because the razor leaves a blunt edge, but shaving does not change the actual thickness of the hair follicle.
For people who don't mind frequent maintenance, shaving can be a convenient temporary hair removal method.
Waxing removes hair from the root, which is why the skin can remain smoother longer than it typically does after shaving.
However, removing the hair does not necessarily stop the follicle from producing another hair. Eventually, a new hair can grow from the follicle and become visible again.
Waxing therefore provides temporary hair removal rather than long-term reduction of the follicle's ability to produce hair.
Like waxing, tweezing pulls individual hairs from the root.
Because the hair is removed below the skin's surface, it generally takes longer to become visible again than hair that has simply been shaved. However, the follicle can continue producing hair, so regrowth is expected.
Tweezing can be practical for a few isolated hairs but may not be convenient for larger treatment areas.
Depilatory creams use chemicals to break down the structure of the hair so it can be wiped away.
These products primarily remove visible hair rather than producing long-term reduction of the hair follicle. As a result, hair grows back and the treatment must be repeated.
Some people may also experience skin irritation from depilatory products, so following the product instructions and considering individual skin sensitivity is important.
Laser hair removal takes a different approach.
Instead of simply cutting or pulling out unwanted hair, laser technology delivers energy that is absorbed by pigment associated with the hair. The energy is converted into heat, which damages the hair follicle and helps reduce future hair growth.
The goal is significant long-term hair reduction, rather than guaranteeing that every treated hair will permanently disappear.
Results vary depending on factors such as hair color and thickness, skin type, treatment area, laser technology, hormonal influences, and individual response.
Because hairs are in different stages of the growth cycle at any given time, one laser treatment cannot effectively target every hair in an area.
A series of treatments allows hairs to be treated as they enter an appropriate stage of growth.
The number and timing of sessions vary from person to person. Your treatment plan may depend on the area being treated, hair characteristics, skin type, response to previous sessions, and other individual factors.
Yes. Some hair can regrow following laser hair removal.
Laser treatment can provide substantial long-term hair reduction, but results are not identical for everyone. Regrowth may also be influenced by factors such as hormones, age, treatment area, and individual hair-growth patterns.
When hair does return, some patients may benefit from occasional maintenance treatments. The need and timing of maintenance vary from person to person.
Laser hair removal results depend partly on the amount of pigment available for the laser to target.
Very light blonde, gray, white, or red hair may respond less effectively because it contains less pigment.
Modern laser systems also offer different wavelengths and adjustable settings that allow treatments to be customized according to individual skin and hair characteristics.
At Park Slope Laser Aesthetic Center, the Cynosure Elite+® system combines Alexandrite and Nd:YAG laser technology, allowing treatment parameters to be selected based on individual characteristics.
Laser hair removal can be used to reduce unwanted hair on many areas of the face and body.
Common treatment areas include the underarms, legs, arms, bikini and Brazilian areas, back, shoulders, chest, abdomen, upper lip, and chin.
Treatment suitability depends on the specific area as well as individual skin and hair characteristics.
Preparation instructions can vary, so follow the specific guidance provided by your treatment provider. “Sun exposure and season can also affect treatment planning; learn more about the best time of year to start laser hair removal.”
You may be advised to limit tanning and excessive sun exposure before treatment, avoid waxing or plucking, and shave the treatment area as directed.
You should also tell your provider about medications, topical products, recent sun exposure, and changes in your skin before treatment.
The main difference between these methods is their long-term goal.
Shaving removes visible hair at the skin's surface and generally requires frequent maintenance.
Waxing removes hair from the root, so results typically last longer than shaving, but the hair can grow back.
Laser hair removal targets the hair follicle with the goal of reducing future hair growth over a series of treatments.
The right method depends on your skin and hair characteristics, treatment area, budget, tolerance for ongoing maintenance, and personal goals.
If you're tired of repeatedly shaving or waxing unwanted hair, a consultation can help determine whether laser hair removal is appropriate for you.
At Park Slope Laser Aesthetic Center in Brooklyn, your skin type, hair characteristics, treatment areas, and goals can be evaluated to develop an individualized treatment plan using Cynosure Elite+ technology.
