How Long Does an Underarm Laser Session Take?

If you’re thinking about getting laser hair removal for your underarms, one of the first questions you’ll likely have is: “How long does the session actually take?” The short answer? Not long. But there’s a lot more to it than just time on the clock. From prep to post-care, each session involves specific steps that affect not only how long you’ll be in the clinic but also how effective your results will be. This guide breaks it all down, so you know exactly what to expect.

What Not to Do Before and After Underarm Laser Hair Removal

Why Laser Hair Removal for Underarms Is So Popular

The underarms are one of the most commonly treated areas for laser hair removal, and it’s easy to see why. The area is small, which means treatments are quick. Plus, the hair tends to be darker and coarser, making it more responsive to the laser. For many people, a few sessions can mean smoother skin and a serious reduction in regrowth.

How Long Does the Actual Laser Session Take?

Most underarm laser sessions take about 10 to 15 minutes. That’s it. This includes the time it takes for the technician to prepare the skin, adjust the laser settings, and apply the treatment to both underarms. If you’ve shaved properly beforehand (which is usually recommended), the session will go even faster.

Here’s a breakdown of what usually happens during that time:

• Quick skin check by the technician
• Wiping the area clean if needed
• Application of the laser pulses (this usually takes just 5-7 minutes for both underarms)
• Optional application of soothing gel or aloe afterward

You’ll be in and out in less time than it takes to scroll Instagram.

Factors That Can Affect Session Duration

While 10–15 minutes is the average, a few things can make your session take slightly longer or shorter.

1. Skin and Hair Type: Coarser or denser hair might require more laser passes.
2. Pain Tolerance: If you’re sensitive to the laser sensation, you might need breaks.
3. Technician Technique: Some clinics use faster machines or more experienced technicians, which can speed things up.
4. Pre-Treatment Preparation: If you forgot to shave or have residual deodorant on your skin, the technician may need to clean or prep the area, adding a few minutes.

What About the First Appointment?

Your first laser hair removal appointment will likely be a bit longer — around 20 to 30 minutes total. That’s because the technician will go over your medical history, explain the procedure, perform a patch test, and answer any questions you may have. But once you get into the routine of regular sessions, the actual laser part remains quick.

Does Underarm Laser Hair Removal Really Work?

How Many Sessions Will You Need?

Most people need 6 to 8 sessions for optimal results, spaced about 4 to 6 weeks apart. Some people see a significant reduction in hair growth after just a few sessions, but consistency is key. The speed of the sessions makes it easier to stick to your treatment plan.

Can You Schedule During a Lunch Break?

Yes, and that’s one of the best things about underarm laser hair removal. Since the session is so short, it’s ideal for squeezing in between classes, errands, or during a break from work. There's no downtime required, so you can go back to your day immediately.

Aftercare: Does That Add Time?

After your session, you might experience mild redness or a warm sensation on your skin. Applying aloe vera or a soothing lotion is usually enough. The aftercare process is simple and doesn’t take much time, but avoid applying deodorant or taking hot showers for at least 24 hours.

Laser vs. Other Hair Removal Methods (Time Comparison)

If you’re used to shaving every few days or waxing every few weeks, laser hair removal is a major time-saver in the long run. Here’s how it compares:

• Shaving: Takes 3–5 minutes per session, multiple times a week
• Waxing: Takes about 30 minutes every 2–4 weeks
• Laser: 10–15 minutes every 4–6 weeks, and long-term results after 6–8 sessions

Final Thoughts

Laser hair removal for underarms is one of the quickest cosmetic treatments available. In just 10 to 15 minutes per session, you’re working toward long-lasting smoothness and ditching the hassle of razors or waxing strips. Whether you’re fitting it into a busy schedule or just tired of constant upkeep, underarm laser is quick, effective, and surprisingly convenient.