You have booked your first laser hair removal session — congratulations! Proper preparation is one of the most important factors in getting safe, effective, and comfortable results from every treatment. Whether you are treating your face, underarms, bikini area, legs, or going for a full body session, this step-by-step guide covers everything you need to do — and avoid — in the days and weeks leading up to your appointment. At Lavish Beauty, a women-exclusive med spa in Calgary using the GentleMax Pro laser, we want every client to feel confident and prepared before they walk through our doors.
In This Guide
- Why Preparation Matters
- Shaving Before Treatment: When and How
- Stop Waxing, Plucking, and Threading
- Sun Exposure and Tanning Rules
- Medications to Avoid Before Treatment
- Skincare Products to Stop Using
- Hydration and Skin Health
- What to Wear to Your Appointment
- What to Expect at Your Appointment
- Pre-Treatment Checklist
- Frequently Asked Questions
New to Laser Hair Removal?
Book a free consultation at Lavish Beauty and we will walk you through the entire preparation process, assess your skin type, and create a personalized treatment plan — all before your first session.
Book Your Free ConsultationWhy Preparation Matters for Laser Hair Removal
Laser hair removal works by sending concentrated light energy into the hair follicle. The pigment (melanin) in the hair absorbs this energy, which heats the follicle and damages it enough to significantly slow or stop future hair growth. For this process to work optimally, the laser needs a clear, unobstructed path to the follicle, and the surrounding skin needs to be in the best possible condition.
When you prepare properly, three important things happen. First, the laser energy reaches the follicle more efficiently, which means better results per session. Second, your risk of side effects — such as burns, hyperpigmentation, or excessive redness — is minimized. Third, the treatment is significantly more comfortable because the skin is calm, hydrated, and free from irritation.
At Lavish Beauty, we use the GentleMax Pro, which is safe for all skin tones and features a built-in Dynamic Cooling Device that sprays cryogen on the skin milliseconds before each laser pulse. This advanced technology makes the treatment remarkably comfortable, but proper preparation on your end ensures you get the absolute best results.
Shaving Before Treatment: When and How
Shaving before your laser hair removal appointment is not optional — it is essential. This is the single most important preparation step, and getting it right makes a significant difference in both safety and effectiveness.
Why You Need to Shave
The laser targets the pigment inside the hair follicle beneath the skin's surface. If there is hair above the skin, the laser energy gets absorbed by the visible hair shaft instead of traveling down to the root. This wastes energy, reduces effectiveness, and — most importantly — can cause the surface hair to heat up and burn the skin. Shaving removes the hair above the surface while leaving the root intact inside the follicle, giving the laser a clean target.
When to Shave
The ideal window is 24 to 48 hours before your appointment. This timing allows any minor razor irritation or redness to subside while ensuring the hair is still at the perfect stubble length. For most clients, shaving the evening before a morning appointment or the morning before an afternoon appointment works well.
Avoid shaving the same day as your appointment, especially if your skin is prone to redness or razor bumps. Freshly shaved skin can be slightly inflamed, which may increase sensitivity during treatment. On the other hand, do not shave more than 48 hours in advance, as the hair may grow too long and interfere with the laser.
How to Shave Properly Before Laser
- Use a clean, sharp razor. A dull blade causes more irritation and increases the chance of nicks, which can be uncomfortable during treatment.
- Shave in the direction of hair growth. This minimizes razor bumps and ingrown hairs, both of which can complicate treatment.
- Use a gentle, fragrance-free shaving cream or gel. Avoid heavily fragranced products that may irritate the skin.
- Rinse with cool water after shaving. Cool water helps close pores and reduce inflammation.
- Apply a gentle, fragrance-free moisturizer. Keep the skin calm and hydrated, but do not apply any products to the area on the day of your appointment.
- Do not use an electric trimmer set too close. While electric trimmers can work, make sure the result is a close shave, not just a trim. The hair should be barely visible.
Shaving Tips by Treatment Area:
- • Face: Use a small facial razor or dermaplaning tool. Be extra gentle around the upper lip and chin.
- • Underarms: Shave with light, short strokes. The skin here is thin and sensitive, so take your time.
- • Bikini and Brazilian: Use a mirror for visibility. Shave carefully in the direction of growth. If you are new to shaving this area, consider using a trimmer first to reduce length before shaving.
- • Legs: Shave as you normally would. Pay extra attention to the backs of the knees and ankles where skin is more sensitive.
- • Back: Ask someone to help you shave hard-to-reach areas, or let your technician know in advance.
Stop Waxing, Plucking, and Threading
This is a rule that cannot be bent: you must stop all hair removal methods that pull hair from the root at least 4 to 6 weeks before your first laser session. This includes waxing, plucking, tweezing, threading, epilating, and using depilatory creams that dissolve the hair at the root level.
The reason is straightforward. Laser hair removal works by targeting the hair root inside the follicle. If you have waxed, plucked, or threaded the hair away, the follicle is temporarily empty. Without that pigmented hair root sitting in the follicle, the laser has nothing to target. The treatment becomes ineffective for those follicles, and you end up paying for a session that cannot deliver full results.
The 4-to-6-week timeline gives your hair enough time to grow back into the follicle so the laser can do its job. During this waiting period, shaving is perfectly fine — and in fact, it is the only hair removal method you should use. Shaving cuts the hair at the surface and does not disturb the root.
Hair Removal Methods: Before Laser
If you are someone who regularly gets threaded or waxed, plan your transition to shaving well before your first laser session. It can take a few tries to get comfortable with shaving areas you normally wax, but your technician at Lavish Beauty can offer tips during your free consultation.
Sun Exposure and Tanning Rules
Sun exposure is one of the biggest risk factors for complications during laser hair removal. Tanned skin — whether from natural sunlight, tanning beds, or self-tanners — changes the way the laser interacts with your skin, and not for the better.
Why Sun Exposure Is a Problem
The laser targets melanin (pigment) in the hair follicle. When your skin is tanned, the melanin in your skin increases. This means the laser cannot distinguish as clearly between the hair follicle and the surrounding skin. The result can be reduced treatment effectiveness, increased discomfort, and a higher risk of burns, blistering, or hyperpigmentation (dark patches on the skin).
Even with the GentleMax Pro — which is safe for all skin tones including darker complexions — a fresh tan changes your baseline skin tone and can affect treatment parameters. It is always better to come in with your natural skin tone.
The Sun Exposure Timeline
- 2 to 4 weeks before treatment: Avoid prolonged direct sun exposure on the treatment area. This means no sunbathing, no tanning beds, and no outdoor activities where the area is exposed for extended periods without protection.
- Throughout your treatment series: Maintain sun protection on treated areas between sessions. Your sessions will typically be spaced 4 to 6 weeks apart, so consistent sun protection is essential for the duration of your treatment plan.
- Self-tanners: Stop using all self-tanning products (sprays, lotions, drops, mousses) at least 2 weeks before your appointment. These products deposit artificial pigment in the outer skin layer and can interfere with the laser.
- Daily protection: If the treatment area will be exposed to sunlight (face, arms, legs), apply a broad-spectrum SPF 30 or higher sunscreen daily in the weeks before your session.
If you have gotten a sunburn in the days before your appointment, contact your clinic to reschedule. Treating sunburned skin is not safe and your technician will need to postpone. It is better to wait a week or two than to risk a complication. This is especially relevant for Calgary clients during summer months when UV exposure is highest.
Medications to Avoid Before Laser Hair Removal
Certain medications can make your skin significantly more sensitive to light (a condition called photosensitivity), increase the risk of burns or pigmentation changes, or interfere with the healing process. It is crucial to disclose all medications — prescription and over-the-counter — to your technician during your consultation.
Accutane (Isotretinoin)
Accutane is the most important medication to flag. If you are currently taking or have recently taken isotretinoin (brand names include Accutane, Absorica, Claravis, Myorisan, or Zenatane), you must wait at least 6 months after your last dose before starting laser hair removal. Accutane thins the skin dramatically, impairs wound healing, and increases the risk of scarring. Most clinics, including Lavish Beauty, will not treat anyone who has taken isotretinoin within the past 6 months.
Photosensitizing Antibiotics
Several common antibiotics increase your skin's sensitivity to light. These include tetracycline, doxycycline, minocycline, ciprofloxacin, and sulfonamides (such as Bactrim). If you are taking any of these, you should stop at least 2 weeks before your laser session, with your prescribing doctor's approval. Do not stop any prescribed medication without consulting your physician first.
Retinoids (Topical and Oral)
Topical retinoids — including tretinoin (Retin-A), adapalene (Differin), and tazarotene (Tazorac) — thin the outer layer of the skin and increase sensitivity. Stop applying topical retinoids to the treatment area at least 5 to 7 days before your appointment. You can continue using retinoids on areas that are not being treated.
Other Medications to Discuss
- • Blood thinners (warfarin, aspirin in high doses) — may increase bruising risk
- • Anti-inflammatory medications (some NSAIDs) — generally fine but discuss with your technician
- • Hormonal medications (birth control, hormone replacement therapy) — generally safe but can affect hair growth patterns; inform your technician
- • Antifungal medications (griseofulvin, voriconazole) — photosensitizing; stop at least 2 weeks before
- • St. John's Wort — this herbal supplement is a known photosensitizer; stop at least 2 weeks before treatment
- • Certain acne medications (benzoyl peroxide in high concentrations) — can increase skin sensitivity; stop 3 to 5 days before
When in doubt, bring a list of all your current medications and supplements to your consultation at Lavish Beauty. Your technician will review everything and let you know if any adjustments are needed before your first session.
Skincare Products to Stop Using Before Treatment
In the days leading up to your laser hair removal appointment, you need to simplify your skincare routine on the treatment area. Many popular active ingredients exfoliate, thin, or sensitize the skin — all of which can increase your risk of irritation or adverse reactions during laser treatment.
Products to Stop 5 to 7 Days Before
Products That Are Safe to Continue
You do not need to abandon your entire skincare routine. Gentle, hydrating products are not only safe but encouraged. Keep using your basic cleanser (fragrance-free is best), a simple moisturizer, hyaluronic acid serums, and sunscreen (which you should be applying daily anyway during your laser treatment series).
Day of Your Appointment
On the day of your treatment, arrive with clean, bare skin on the treatment area. Do not apply any lotions, creams, deodorant, perfume, sunscreen, or makeup to the area being treated. These products create a barrier between the laser and your skin, can react with the laser energy, and may increase the risk of irritation. If your treatment is on your face, come with a freshly washed face and no makeup. You can bring your products with you and reapply after treatment.
Hydration and Skin Health
Hydrated skin responds better to laser treatment. When your skin is well-hydrated, the laser energy penetrates more evenly, the cooling mechanism works more effectively, and your skin recovers faster after treatment. Dehydrated skin, on the other hand, tends to be more sensitive, more prone to irritation, and slower to heal.
Internal Hydration
Drink plenty of water in the days leading up to your appointment. Aim for at least 8 glasses (about 2 litres) of water per day for the 2 to 3 days before your session. This is especially important during Calgary's dry winter months when dehydration is common. Avoid excessive alcohol consumption for 24 to 48 hours before treatment, as alcohol dehydrates the skin and can increase sensitivity.
External Hydration
Keep the treatment area well-moisturized in the week before your appointment (but remember — no products on the day of treatment). Use a gentle, fragrance-free moisturizer after shaving and before bed. Look for ingredients like hyaluronic acid, ceramides, or glycerin, which hydrate without irritating the skin.
Hydration Checklist:
- • Drink 8+ glasses of water daily for 2–3 days before treatment
- • Avoid alcohol 24–48 hours before your appointment
- • Moisturize the treatment area nightly with a fragrance-free moisturizer
- • Avoid hot baths and saunas that strip moisture from the skin for 24 hours before
- • Use a humidifier in dry indoor environments, especially during Calgary winters
What to Wear to Your Appointment
What you wear to your laser hair removal appointment matters more than you might think. The treatment area may be slightly warm, pink, or sensitive afterward, so choosing the right clothing ensures you stay comfortable during and after your session.
Clothing Recommendations by Treatment Area
Face or Neck
Wear a button-up or zip-up top so you do not have to pull anything over your face after treatment. Skip turtlenecks. Bring a hat or scarf for sun protection when leaving.
Underarms
Wear a loose-fitting tank top or a button-down shirt. Avoid tight sleeves that press against the underarm area. Skip the sports bra with tight arm holes.
Bikini or Brazilian
Wear loose cotton underwear and relaxed-fit pants, joggers, or a flowy skirt. Avoid thongs, lace, or tight jeans that can rub against the freshly treated area. Cotton is the most breathable and least irritating fabric choice.
Legs
Wear a loose maxi skirt, wide-leg pants, or soft joggers. Avoid skinny jeans or leggings that compress the skin. In warm weather, a skirt or dress is the easiest option.
Back or Stomach
Wear a loose t-shirt or blouse. Avoid anything with rough seams or tags that sit directly on the treated area. A soft cotton shirt is ideal.
Full Body
Opt for an oversized, soft outfit — think baggy joggers and a loose cotton t-shirt. Bring a change of loose underwear if your current pair is tight.
The general rule is simple: loose, soft, breathable. Your skin will thank you. At Lavish Beauty, we provide a comfortable, private treatment room where you can change if needed.
What to Expect at Your Appointment
Knowing exactly what happens during your laser hair removal session helps ease any anxiety and ensures you feel completely prepared. Here is a step-by-step walkthrough of what to expect at Lavish Beauty.
Step 1: Check-In and Skin Assessment
When you arrive at our women-exclusive Calgary clinic, you will check in and be brought to a private treatment room. Your technician will review your medical history, ask about any medications or skin changes since your last visit, and assess the treatment area. If this is your first session, the assessment will be more thorough — including a discussion of your skin type, hair type, and treatment goals.
Step 2: Laser Settings and Test Spots
Your technician will configure the GentleMax Pro to your specific skin tone and hair type. For first-time clients, a few test pulses may be performed on a small area to confirm the settings are comfortable and appropriate. The GentleMax Pro features dual wavelengths (Alexandrite 755nm and Nd:YAG 1064nm) that allow it to safely and effectively treat every skin tone from very fair to very dark.
Step 3: The Treatment
You will be given protective eye shields. The technician will methodically work across the treatment area, delivering laser pulses in a grid pattern to ensure complete coverage. Each pulse is preceded by a burst of cryogen from the Dynamic Cooling Device, which makes the sensation very tolerable. Most clients describe it as a quick snap or a warm rubber band flick. The duration depends on the treatment area — a small area like the upper lip takes about 5 minutes, while full legs can take up to 60 minutes.
Step 4: Post-Treatment Care
After the treatment, your technician will apply a soothing aloe gel or cooling cream to the treated area. You may notice mild redness or slight swelling around the follicles, which is completely normal and typically subsides within a few hours. Your technician will give you detailed aftercare instructions and schedule your next session (usually 4 to 6 weeks later).
Step 5: Resume Your Day
There is no downtime with laser hair removal. You can return to work, errands, or your daily routine immediately. The only restrictions are avoiding hot showers, saunas, intense exercise, and sun exposure for 24 to 48 hours after treatment. Over the next 1 to 3 weeks, the treated hairs will gradually shed and fall out on their own.
Your Complete Pre-Treatment Checklist
Use this checklist to make sure you are fully prepared for your laser hair removal session. Print it out or save it to your phone for easy reference before each appointment.
4 to 6 Weeks Before
- • Stop waxing, plucking, threading, and epilating the treatment area
- • Switch to shaving as your only hair removal method
- • Stop using self-tanning products
- • Begin protecting the treatment area from prolonged sun exposure
- • Consult your doctor about any photosensitizing medications
1 Week Before
- • Stop retinoids, glycolic acid, salicylic acid, and chemical exfoliants on the treatment area
- • Stop physical scrubs and exfoliating brushes on the treatment area
- • Begin hydrating the skin with a gentle, fragrance-free moisturizer
- • Increase water intake to at least 8 glasses per day
24 to 48 Hours Before
- • Shave the treatment area with a clean, sharp razor
- • Shave in the direction of hair growth
- • Apply a fragrance-free moisturizer after shaving
- • Avoid alcohol consumption
- • Avoid excessive caffeine
Day of Your Appointment
- • Arrive with clean, bare skin on the treatment area (no lotions, deodorant, makeup, or sunscreen)
- • Wear loose, comfortable clothing appropriate for the treatment area
- • Skip the gym — do not work out before your appointment
- • Avoid hot baths or saunas
- • Bring a list of current medications and supplements if it is your first visit
- • Arrive 5 to 10 minutes early to check in and settle in comfortably
Following this checklist for every session ensures you get the maximum benefit from each treatment. Consistency matters — clients who prepare properly typically see faster results and need fewer total sessions to achieve their goals. For more details on how many sessions you may need, check out our dedicated guide.
Additional Tips for the Best Results
Beyond the core preparation steps, here are a few additional tips that our technicians at Lavish Beauty recommend for getting the absolute best results from your laser hair removal treatments.
Stick to Your Treatment Schedule
Hair grows in cycles, and the laser is only effective on hairs that are in the active growth phase (anagen). Sessions are spaced 4 to 6 weeks apart to catch new hairs as they enter this phase. Skipping sessions or delaying too long between appointments means missing optimal treatment windows and potentially needing extra sessions. If you need to reschedule, try to stay within a week of your original appointment date.
Be Honest About Your Medical History
Always disclose any changes in medications, health conditions, or skin concerns to your technician. Conditions like PCOS, hormonal imbalances, pregnancy, or new medications can all affect your treatment plan. At Lavish Beauty, everything you share is kept confidential, and it helps us provide safer, more effective treatments.
Manage Expectations for the First Session
Your first session is a starting point, not a finish line. You will not see dramatic results after just one treatment. The real results build over the course of your treatment series. After 3 to 4 sessions, most clients notice a significant reduction in hair growth. By session 6 to 8, most clients achieve 80 to 90 percent permanent hair reduction. Patience and consistency are key.
Communicate During Treatment
Do not hesitate to speak up during your session. If the sensation is more intense than you expected, if a particular area is more sensitive, or if you need a moment to rest, let your technician know. The GentleMax Pro settings can be adjusted on the fly, and your comfort is always a priority. Laser hair removal should be very tolerable — it should never feel unbearable.
Frequently Asked Questions
How many days before laser hair removal should I shave?
You should shave the treatment area 24 to 48 hours before your laser hair removal appointment. This allows the skin to recover from any minor irritation caused by shaving while leaving the hair follicle intact just below the surface, which is what the laser targets. Shaving the night before your appointment is ideal for most people.
Can I use deodorant before laser hair removal on my underarms?
No. You should avoid applying deodorant, antiperspirant, or any other product to the treatment area on the day of your appointment. These products can create a barrier on the skin that interferes with the laser energy and may increase the risk of irritation. You can reapply deodorant after your session once the skin has cooled.
What happens if I forgot to shave before my laser appointment?
If you arrive at your appointment without shaving, the technician may be able to shave the area for you, though this may reduce appointment time or incur a small fee depending on the clinic. Unshaved hair above the skin surface can absorb laser energy and cause burns or discomfort instead of directing the energy to the follicle. It is always best to shave 24 to 48 hours in advance.
Can I drink coffee before laser hair removal?
It is best to avoid caffeine for at least 2 to 3 hours before your appointment. Caffeine can increase skin sensitivity and make you more aware of the sensation during treatment. While it will not affect the results of the laser, minimizing caffeine can make the experience more comfortable overall.
How long before laser hair removal should I stop waxing?
You should stop waxing, plucking, threading, and using epilators at least 4 to 6 weeks before your first laser hair removal session. These methods remove the hair root, which is the target of the laser. Without the root in the follicle, the laser cannot effectively treat the hair. You can shave during this period because shaving only removes hair above the skin surface.
Can I take ibuprofen before laser hair removal?
Yes, you can take ibuprofen or acetaminophen 30 to 60 minutes before your appointment to help manage any discomfort. However, avoid aspirin as it is a blood thinner and may increase the risk of bruising. Always consult your technician or doctor if you are unsure about any medication before your session.
Do I need to avoid the sun before laser hair removal?
Yes. You should avoid direct sun exposure, tanning beds, and self-tanning products for at least 2 to 4 weeks before your appointment. Tanned or sunburned skin increases the risk of burns, hyperpigmentation, and reduced treatment effectiveness. If you do have sun exposure, let your technician know so they can adjust the laser settings accordingly.
Can I wear makeup to my face laser hair removal appointment?
You should arrive with clean, product-free skin on the treatment area. If you are having your face treated, remove all makeup, sunscreen, and skincare products before your appointment. You can bring your products with you and reapply after the session once the technician gives you the okay. At Lavish Beauty, we provide a clean, private space to freshen up after treatment.
Is it normal to be nervous before my first laser hair removal session?
Absolutely. It is completely normal to feel nervous, especially if you are unsure what to expect. At Lavish Beauty, we walk every new client through the entire process before starting treatment. Our GentleMax Pro laser has a built-in cooling system that makes the treatment very comfortable. Most clients say the actual experience is much easier than they expected and wish they had started sooner.
What should I wear to my laser hair removal appointment?
Wear loose, comfortable clothing that allows easy access to the treatment area. For leg treatments, wear loose pants or a skirt. For underarm treatments, a loose tank top or button-up shirt works well. For bikini or Brazilian treatments, wear loose cotton underwear and comfortable pants. Tight clothing can irritate freshly treated skin, so comfort is key.
Can I prepare for laser hair removal if I have sensitive skin?
Yes. The GentleMax Pro used at Lavish Beauty is specifically designed to be safe and effective for all skin types, including sensitive skin. To prepare, avoid any harsh skincare products (retinoids, glycolic acid, exfoliants) for at least one week before treatment. Keep the area well-moisturized in the days leading up to your appointment and let your technician know about any skin sensitivities during your consultation.
How long does a laser hair removal session take?
Session length depends on the treatment area. Small areas like the upper lip or chin take about 5 to 10 minutes. Underarms take about 10 to 15 minutes. A Brazilian takes about 20 to 30 minutes. Full legs take about 45 to 60 minutes. A full body session typically takes 60 to 90 minutes. Your technician will give you a specific time estimate during your consultation.
Ready to Start Your Laser Hair Removal Journey?
At Lavish Beauty, our women-exclusive Calgary med spa uses the GentleMax Pro — the gold standard in laser hair removal technology, safe for all skin tones. Book your appointment today and our experienced technicians will guide you through every step of the process, from preparation to aftercare.
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