Laser hair removal is one of the most effective ways to reduce unwanted hair with long-lasting results. But like any medical aesthetic treatment, the key to great outcomes lies in proper preparation. Whether you’re targeting your legs, underarms, face, or bikini line, following pretreatment guidelines can help ensure the best results while minimizing discomfort or side effects.

At Rejuvenation Medical Spa in Toronto, every laser hair removal session is backed by expert care and cutting-edge technology. But even with experienced practitioners and top-tier equipment, your prep work still plays a major role.

Related Article: At What Age Can You Do Laser Hair Removal

Here’s a comprehensive guide to preparing for your appointment so you can feel confident, informed, and ready.

1. Avoid Sun Exposure

Stay out of the sun for at least two weeks before your laser session. Tanned skin (natural or from tanning beds) increases the risk of burns, pigment changes, and skin irritation.

Laser technology works by targeting the pigment in the hair follicle. When your skin is tanned, the pigment contrast between hair and skin decreases, making the laser less effective and increasing the risk of side effects.

Use broad-spectrum SPF 30+ daily on exposed treatment areas, even on cloudy days. If you’re planning a beach trip, it’s best to wait until after your treatments are completed.

2. Don’t Wax, Pluck, or Thread

Avoid any hair removal methods that remove the hair from the root for at least four weeks before treatment. These methods interfere with the laser’s ability to target the follicle:

• Waxing
• Tweezing
• Epilation devices
• Threading

Laser hair removal is most effective when the root of the hair is intact. Removing the hair from the root before treatment can lead to less effective results.

Stick to shaving if you need to manage hair growth before your session.

3. Shave 24 Hours Before Your Session

Shaving is the only recommended hair removal method leading up to your appointment. Do it about 24 hours before your treatment to:

• Minimize surface hair
• Avoid skin irritation from freshly shaved areas

Avoid using dull razors or applying heavy pressure while shaving. This helps prevent razor burn or nicks that can make treatment uncomfortable.

4. Skip Skincare Products on Treatment Day

On the day of your appointment, keep the treatment area clean and bare. Products like deodorants, lotions, oils, perfumes, and makeup can create a barrier on the skin, affecting the laser’s ability to work and increasing the chance of irritation.

Use a gentle cleanser beforehand and avoid applying anything after your shower. If you accidentally use a product, notify your technician so they can properly cleanse the area before proceeding.

6. Avoid Blood Thinners and Harsh Skincare Ingredients

To minimize the chance of bruising, irritation, or unwanted reactions, avoid these substances and products:

• Blood thinners (Aspirin, Ibuprofen)
• Alcohol (avoid for at least 24–48 hours prior)
• Caffeine in high amounts (can increase sensitivity)
• Topical acids like AHAs/BHAs, retinoids, or vitamin C serums

Stop using any prescription topicals or over-the-counter exfoliants at least 3–5 days prior to treatment.

7. Tell Your Practitioner About Any Medications

Some medications and health conditions can make your skin more sensitive or reactive to laser treatment. This includes antibiotics, acne medications (like Accutane), and hormone therapies.

During your consultation, disclose any current prescriptions, medical conditions, or recent treatments such as chemical peels or microdermabrasion. Full transparency allows your provider to customize your session safely.

8. Wear Comfortable Clothing

Laser-treated areas can feel sensitive for a few hours post-session. To reduce irritation:

• Wear breathable, loose-fitting fabrics
• Avoid tight waistbands or straps around the treated area
• Skip synthetic or rough-textured fabrics on sensitive skin

If you’re treating your bikini area or underarms, consider bringing a change of clothes for post-treatment comfort.

9. Know What to Expect

Laser hair removal is generally well-tolerated. Most people describe the sensation as a sharp snap, like a rubber band, against the skin. While some areas (like the upper lip or bikini line) may be more sensitive, the discomfort is brief and manageable.

Numbing creams are available upon request for sensitive areas; just ask about this during your consultation. The session time varies by area, ranging from 15 minutes to an hour.

Post-treatment, you may notice mild redness or swelling, similar to a sunburn. This usually subsides within a few hours.

Related Article: The Unexpected Benefits of Laser Hair Removal

10. Stay Consistent With Your Sessions

Hair grows in cycles, and laser treatments are only effective during the growth (anagen) phase. That’s why you’ll need multiple sessions spaced about 4–6 weeks apart.

Skipping or delaying sessions can disrupt the treatment plan and extend the time it takes to see full results. Consistency improves effectiveness and keeps your progress on track.

Most clients see a noticeable reduction in hair after 2–3 sessions, with optimal results typically achieved after 6–8 treatments.

Related Article: How Long Does Laser Hair Removal Last?

11. Ask Questions at Your Consultation

Your consultation is more than a formality; it’s your opportunity to fully understand what the treatment entails and how it fits with your aesthetic goals.

Come prepared to discuss:

• Your medical history
• Skin and hair type
• Previous hair removal methods
• Any concerns about pain, downtime, or outcomes

At Rejuvenation Med Spa, this step ensures each session is precisely tailored to your needs and that you feel confident every step of the way.

What to Do After Your Session

While this guide focuses on prep, knowing what to do afterward is just as important:

• Avoid sun exposure and use SPF daily
• Skip hot showers, saunas, and workouts for 24–48 hours
• Avoid harsh skincare products for a few days
• Don’t pick or scratch any treated areas

Follow any specific instructions given by your provider to support healing and maximize results.

Related Article: How Many Sessions For Laser Hair Removal? Detailed Guide

Smooth Skin Starts with Smart Preparation

Laser hair removal is more than a cosmetic treatment—it’s a time-saving solution that builds confidence and makes daily routines easier. With thoughtful preparation, you can reduce side effects, improve your results, and feel more at ease on treatment day.

Rejuvenation Med Clinic in Toronto combines experience, advanced equipment, and a focus on client care. Whether it’s your first time or part of your long-term beauty plan, their team is ready to help you reach your goals with precision and support.

Book your consultation with Rejuvenation Medical Spa today and start your journey to smoother, low-maintenance skin.