Underarm hair removal usually requires multiple sessions, but there is no guaranteed number that will eliminate all hair for everyone. Published guidance on laser hair removal provides different general estimates: the American Academy of Dermatology (AAD) mentions approximately 2–6 sessions, while Cleveland Clinic describes approximately 6–8 sessions. These are general estimates for laser hair removal, not a fixed treatment plan specifically for the underarms or a guarantee from WeDo. [1][2]
The actual number of sessions should be determined by your hair characteristics, skin type, device, and response after each treatment. The important thing is to have a plan for assessing progress rather than purchasing a package simply because it promises “complete hair removal.”
Why Can’t All Underarm Hair Be Removed in One Session?
Hair follicles are not all in the same stage of the growth cycle. Laser treatment works best on hair in the active growth phase, so repeated sessions over time are needed to target different groups of hair as they enter that phase. [2]
This explains why hair may become thinner after the first few sessions while other hairs continue to appear. However, the hair growth cycle should not be used as an excuse to skip reassessment when several consecutive sessions produce little or no noticeable improvement.
Before starting treatment, ask when your progress will be reviewed. A good treatment plan should explain when to continue, adjust the approach, or stop—not simply list the total number of sessions you have purchased.
Factors That Affect the Number of Underarm Hair Removal Sessions
Hair color, thickness, skin tone, and the type of laser used can all influence treatment response. Recent tanning and existing skin conditions in the treatment area may also affect when and how the procedure can be performed. [1][3]
Provide your provider with your previous hair removal history, including the technology used, the date of your last session, any unusual reactions, and the degree of hair reduction you experienced. Simply saying that you have had ten sessions without knowing how they were performed gives your doctor less information for evaluating the results.
Your personal goal also matters. Someone who wants to shave less frequently may be satisfied with a different level of hair reduction than someone who wants their underarms to look consistently smooth. You should not use another person’s goals to decide whether your own treatment is complete or insufficient.
Do the Intervals Between Sessions Need to Be the Same for Everyone?
Recommended schedules also vary. The AAD notes that many people can have repeat treatments approximately every 4–6 weeks, while Cleveland Clinic describes intervals of around 6–8 weeks. Your schedule should be selected according to the treatment area, device, and your skin’s response. [1][2]
If your clinic recommends a different interval, ask why. You should understand which device and assessment criteria support the schedule rather than following a fixed date simply to complete the package.
Do not shorten the intervals on your own to finish treatment before a beach trip. Your skin needs to be assessed before each session, particularly if you have recently spent significant time in the sun or are still experiencing a reaction from the previous treatment.
How to Track Whether Your Treatment Is Working
You can use the same tracking method after every session:
- Take photographs of your underarms under similar lighting and at the same interval after shaving.
- Record how many days pass before you feel the need to shave again.
- Note areas where hair remains dense and areas where it has become thinner.
- Record any skin reactions after each session and how long recovery takes.
- Compare your progress with the goals agreed upon during your consultation.
Do not compare a photograph taken immediately after hair removal with one taken before shaving and treat the difference as a long-term result. When discussing effectiveness, ask your provider to explain both the degree of hair reduction and how regrowth will be monitored.
If several sessions produce no meaningful change, reassess the treatment before purchasing additional sessions. Important factors to review include the device used, treatment area, response so far, and realistic remaining goals.
Does Underarm Laser Hair Removal Cause Hair to Grow Back?
Hair can grow back, and some people may need maintenance sessions. Regrowth does not necessarily have the same thickness or density as before treatment. However, the possibility of maintenance should not be used to promise a fixed outcome for everyone. [1][2]
Distinguish between the initial treatment package and the clinic’s maintenance policy. Ask about eligibility, time limits, and costs instead of relying solely on phrases such as “lifetime guarantee” without clearly documented terms.
Don’t Confuse Hair Reduction with Treating Underarm Pigmentation or Odor
The number of underarm hair removal sessions required is not necessarily the number needed to improve dark pigmentation. Hair growth, skin discoloration, and odor can occur together, but they require separate assessments.
If your underarms are irritated, peeling, developing painful bumps, or showing noticeable changes in skin color, inform your provider before the next session. Do not try to lighten the area with exfoliating products simply to continue treatment when the skin has not stabilized.
You should also avoid assuming that a package with additional skin-brightening claims will automatically produce better results. Ask which outcomes are measured by reduced hair density and which require a separate treatment plan.
Reference Prices and How to Choose a Package at WeDo
According to WeDo’s service page reviewed. The underarm/facial hair removal category using OTP light SHR is listed at VND 250,000 per session or VND 1,000,000 for five sessions. The Alma laser category, which includes skin rejuvenation and brightening claims, is listed at VND 950,000 per session or VND 3,700,000 for five sessions. The listed prices exclude VAT. [4]
These prices refer to different service categories and should not be compared solely by the cost per session without considering the treatment area and technology. The number of sessions included in a package is a commercial arrangement, not proof that everyone needs exactly five treatments.
You can review WeDo’s laser hair removal services and price list and confirm the current price, treatment area, progress review schedule, and maintenance conditions before registering.
Frequently Asked Questions
Are five underarm laser hair removal sessions enough?
It depends on your response and treatment goals. Five sessions may be the size of a service package, but that does not automatically determine when treatment should end.
Should I have laser hair removal every week to get rid of hair faster?
Do not choose the frequency on your own. The schedule should account for the device, hair growth cycle, and skin condition after each session.
Does regrowth mean the treatment was ineffective?
Not necessarily. Compare the hair’s thickness, density, and regrowth time with your starting point, and assess the overall treatment course.
If my underarms are still dark, do I need more hair removal sessions?
You cannot draw that conclusion from pigmentation alone. The discoloration should be assessed separately, especially if it occurs with itching, irritation, or thickened skin.
Is a ten-session package better than a five-session package?
Not necessarily. Determine your needs, progress review milestones, and package conditions before deciding how many sessions to purchase.
References
[1] American Academy of Dermatology. Laser Hair Removal FAQs.
[2] Cleveland Clinic. Laser Hair Removal.
[3] American Academy of Dermatology. Laser Hair Removal: Preparation.
[4] WeDo Skin Clinic. Hair Removal Services and Price List.
