After laser hair removal, your skin is temporarily more sensitive and vulnerable to irritation, pigmentation changes, and infection. What you do in the first 48 hours matters most, but some restrictions extend for days or even weeks. Here’s what to avoid and why it matters for both your skin and your results.
Don’t Expose Treated Skin to the Sun
Your skin is at its most vulnerable immediately after treatment, and UV exposure is the fastest way to cause problems. Sunlight increases your risk of burns, hyperpigmentation (dark patches that can take months to fade), and general irritation. Avoid direct sun exposure for at least three days, and apply SPF 30 or higher sunscreen daily on treated areas for the weeks between sessions.
This also applies before your next appointment. You’ll want to start protecting the treatment area from the sun at least two weeks before each session. Tanned or sun-darkened skin changes how the laser interacts with your skin tone, making treatment less effective and side effects more likely.
Skip Self-Tanner for at Least Five Days
Self-tanners, spray tans, and tanning lotions should stay off treated skin for at least four to five days after your session. Your skin is too sensitive for the chemicals in these products, and you risk irritation or an uneven reaction. When you’re ready to reintroduce self-tanner, do a patch test on a small area first. Wait 24 hours, and if there’s no redness or reaction, you’re fine to apply it more broadly.
Before your next session, stop all self-tanning products 7 to 10 days in advance. Any residual color on the skin’s surface can absorb laser energy instead of letting it reach the hair follicle. This competes with the actual target, making the treatment less effective and increasing the chance of burns or blisters.
Avoid Heat for 24 to 48 Hours
Hot showers, hot tubs, saunas, and steam rooms should all be avoided for at least 24 to 48 hours. Your treated skin is already holding residual heat from the laser, and adding more heat on top of that can worsen redness, swelling, and discomfort. Lukewarm or cool showers are fine right away.
Exercise falls into the same category. Intense workouts and heavy sweating should wait at least 24 hours. Sweat sitting on freshly treated skin can irritate the follicles and potentially lead to folliculitis, which looks like small red bumps or pimples around the hair follicles. A light walk is usually fine, but save your spin class or hot yoga for the next day.
Don’t Wax, Tweeze, or Pluck
This is the most important rule between sessions, and the one that directly affects whether your treatments work. Laser hair removal targets the hair shaft and root inside the follicle. The laser energy travels down the hair to destroy the follicle at its base. When you wax, tweeze, or epilate, you pull the hair out entirely, leaving nothing for the laser to target at your next appointment.
Waxing between sessions also disrupts hair growth cycles. The laser is most effective during the active growth phase, and removing hair by the root throws off the timing, making it harder to catch hairs at the right stage. Avoid any method that pulls hair from the root for at least two to four weeks before your next session.
Shaving is the one method that’s completely fine. It cuts hair at the surface without disturbing the root or follicle underneath. Most providers actually ask you to shave the treatment area 24 to 48 hours before each appointment.
Stay Out of Pools and Open Water
Wait at least 48 hours before swimming in a pool, the ocean, or any other body of water. Chlorine is a chemical irritant that can sting and inflame freshly treated skin, while natural bodies of water carry bacteria that can cause infection when your skin barrier is compromised. If your skin is still noticeably red or irritated after two days, wait longer.
Hold Off on Makeup After Facial Treatments
If you had laser hair removal on your face (upper lip, chin, sideburns), avoid applying makeup for at least 24 to 48 hours. Cosmetics can clog pores, introduce bacteria, and irritate skin that’s still recovering. For particularly sensitive areas, waiting even longer is better.
When you do start wearing makeup again, keep it simple. Mineral powder foundations with SPF protection are a good first choice because they sit lightly on the skin. BB or CC creams with hydrating ingredients work well too. Avoid heavy, full-coverage liquid foundations for the first few days. Stick to minimal eye makeup and a sheer lip product rather than anything with strong pigments or fragrances.
Pause Active Skincare Ingredients
Your regular skincare routine likely contains ingredients that are too harsh for post-laser skin. Put these on hold until your skin has fully recovered, which typically means at least a few days to a week:
- Retinoids and retinol: These speed up cell turnover and can cause peeling or increased sensitivity on already-compromised skin.
- AHAs and BHAs: Chemical exfoliants like glycolic acid, salicylic acid, and lactic acid are too aggressive for freshly treated skin.
- Vitamin C serums: While normally beneficial, these can sting and irritate sensitive post-treatment skin.
- Fragranced products: Anything with added fragrance or dyes increases irritation risk.
Stick to gentle, fragrance-free cleansers and a simple moisturizer. Aloe vera gel or a soothing, hydrating cream is usually all your skin needs during recovery.
Wear Loose, Breathable Clothing
For the first day or two, choose loose-fitting clothes made from soft, breathable fabrics like cotton. This matters especially for treatments on the legs, bikini area, underarms, or torso. Tight clothing made from synthetic materials traps heat against your skin and creates friction that can worsen irritation, redness, and swelling. Letting the treated area breathe speeds up the healing process and keeps you more comfortable.
Don’t Scrub or Exfoliate Too Soon
It’s tempting to exfoliate right away, especially once you notice treated hairs starting to push out of the skin. But scrubbing too early can damage your healing skin barrier. Wait at least two days before any gentle exfoliation, and even then, use a soft washcloth rather than a rough scrub.
Around one to two weeks after treatment, you’ll notice treated hairs shedding on their own. This is normal and expected. Gentle exfoliation once a week after that initial waiting period can help the process along and prevent ingrown hairs. The hairs aren’t growing back; they’re being pushed out by the skin as the destroyed follicles release them.
What’s Normal Versus What’s Not
Some redness, mild swelling, and a sunburn-like sensation are completely normal and usually fade within a few hours to a couple of days. Small red bumps around treated follicles are also common and not a cause for concern.
Blistering, crusting, scarring, and changes in skin texture are uncommon side effects that warrant a call to your provider. In rare cases, hair can actually grow thicker in the area surrounding the treated skin, a phenomenon that your provider should evaluate before continuing treatment.