Laser hair removal results after each session: from the first to the last

The course at a glance

There are usually 4 to 6 weeks between two sessions. In total, it's usually 6 to 10 sessions; on the face and in the intimate area, more like 8 to 12.

Before the first session: initial consultation and test patch

With us, every treatment starts with a free initial consultation of about 20 minutes. We determine your skin and hair type, go through health questions and medication, and treat a small test patch. That way we can see how your skin reacts, and you can feel in advance what the laser is like. Afterwards, we'll tell you how many sessions you can realistically expect – and also if your hair is too light or too fine for a good result.

In the four weeks before the first session: no tan on the area, no tweezing, epilating or waxing. Shaving is encouraged, ideally 24 hours beforehand. You'll find the full list under Preparation and aftercare.

The first session: how it works

You come shaved. The skin is cleansed, you're given protective goggles, a gel is applied, and the cooled handpiece is moved over the area in several passes. Most people describe a warm tingling. The upper lip and intimate area are more sensitive than the underarms or legs – more on this in the article Does laser hair removal hurt? Depending on the size of the area, the session takes between 15 and 95 minutes; afterwards, we cool the skin.

Right afterwards, the skin is often red and slightly swollen. This subsides within a few hours to two days. For the first 24 hours: no sport, no sauna, no hot bath.

Weeks 1 to 3: the hairs fall out

In the two to three weeks after the session, the treated hairs push their way out of the skin and fall out. It looks as if they're growing back – but it's actually the opposite. A gentle scrub after about a week helps the process along.

A few weeks later, hairs will still grow back – mainly those that were resting during the session and couldn't be reached by the laser. That's not a setback; it's the reason for the next session. Between sessions you may only shave – and not even that in the first four days after a session.

Sessions 2 and 3: the first visible difference

The German Federal Office for Radiation Protection (Bundesamt für Strahlenschutz) explains why one appointment isn't enough: the treatment only works on hair follicles in which a hair is currently growing. Each session therefore reaches a new group of hairs.

A visible difference in density usually shows after the second or third session: fewer hairs grow back, and they grow more slowly. At first this can sometimes look patchy, because not all hairs grow at the same pace. We always book the next appointment straight after the session so that the interval is right.

Further sessions: sparser, finer, lighter

With every session there are fewer hairs, and the remaining ones are often finer and lighter. Fine, light hair contains less melanin and responds less strongly to the laser. That's why progress is usually smaller towards the end.

What can slow progress down:

• Hormone-related hair growth, especially on the face and in the intimate area
• Light, red, grey or very fine hair, which hardly responds
• Tweezing, epilating or waxing between sessions – this removes the hair root that the laser needs

Towards the end, when only individual hairs are growing back, the intervals often become longer. No one can tell you a binding number of sessions in advance; realistically, it's usually 6 to 10 over roughly six months to a year. More on this in the article How many laser sessions do you need?

After the course: what happens next

The goal is permanent^¹ hair reduction: the area usually stays considerably less hairy over a long period. The definitive removal of every single hair has not been proven for any device. Individual hairs can come back, for example with hormonal changes such as during pregnancy or the menopause. Touch-up sessions then help – with hormone-related hair growth often on a regular basis, roughly every six to twelve months.

¹ Permanent hair reduction requires several treatments, depending on the body area and the individual hair and skin type. Success cannot be guaranteed, even when the treatment is carried out professionally. On light, red, grey or white hair, the treatment is ineffective or only partially effective.

Online "experiences": how to read them properly

Every report describes one skin, one type of hair, one area and one device. So ask yourself:

• Which area, which hair and skin colour? Dark hair on light skin responds best, light blonde hair hardly at all.
• After how many sessions? A report after two sessions says little about the result. Someone writing a year after their last session is more informative.
• Laser or IPL, studio or home device? The methods differ – more on this in the article At-home IPL device or treatment in a salon?

Warning signs from providers. No reputable provider can promise "100% hair-free", "guaranteed" or "after one session"; according to the Bundesamt für Strahlenschutz, this isn't possible with a single treatment. In 2025, the Higher Regional Court of Karlsruhe (Oberlandesgericht Karlsruhe) ruled that a laser centre's advertising was misleading because it didn't mention that several treatments are usually needed. Anyone promising "painless" treatment is promising too much as well. For contracts, the German consumer advice centre (Verbraucherzentrale) advises: don't let yourself be pressured, and read the documents at home in your own time.

Warning signs in reviews. The Verbraucherzentrale lists, among other things: lots of positive reviews in a very short time, recurring phrases, exaggerated praise that reads like advertising, generic texts without concrete experiences, and no criticism at all.

FAQ

Sources

1. Bundesamt für Strahlenschutz: Dauerhafte Haarentfernung (Epilation). bfs.de/DE/themen/opt/anwendung-medizin-wellness/epilation/epilation.html
2. Vaidya T, Hohman MH, Kumar DD: Laser Hair Removal. StatPearls, NCBI Bookshelf. ncbi.nlm.nih.gov/books/NBK507861
3. American Academy of Dermatology: Laser hair removal – FAQs. aad.org/public/cosmetic/hair-removal/laser-hair-removal-faqs
4. Verbraucherzentrale: Irreführende Werbung für dauerhafte Haarentfernung verboten (OLG Karlsruhe, judgment of 09.04.2025, 6 U 181/23). verbraucherzentrale.de/urteile/irrefuehrende-werbung-fuer-dauerhafte-haarentfernung-verboten-88441
5. Verbraucherzentrale: Dauerhafte Haarentfernung: Vorsicht vor teuren Verträgen (as of 12.11.2025). verbraucherzentrale.de/node/113590
6. Verbraucherzentrale: Kann man Online-Bewertungen trauen? So erkennen Sie Fake-Reviews (as of 16.12.2025). verbraucherzentrale.de/wissen/vertraege-reklamation/kundenrechte/kann-man-onlinebewertungen-trauen-so-erkennen-sie-fakereviews-124728

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