IPL results timeline: How long does it take for IPL to work?

Results of IPL hair removal after first treatment

It’s important to have realistic expectations with IPL hair removal after your first treatment. In most cases, you’ll see little to no immediate difference in hair regrowth, and that’s completely normal.

IPL works by targeting hairs that are actively growing. However, not all hairs are in the same stage of the growth cycle at the same time, so some hairs won't respond to treatment straight away. This is why IPL requires multiple sessions to achieve noticeable, long-lasting results.

To get the best results, continue with your initial treatment plan and use your IPL every 2 weeks as recommended. With consistent use, you'll begin targeting more hairs as they enter the active growth phase, leading to a gradual reduction in hair regrowth over time.

IPL results timeline

If you’re wondering how long it takes for IPL to work, patience and consistency are key. While results vary from person to person, most people start to notice changes within the first few weeks of their IPL treatment schedule.

Here’s a typical timeline for IPL week by week:

• Week 1: You’ve completed your first IPL session. Although treatment has started targeting hairs in their active growth phase, visible results are unlikely at this stage.
• Week 2: Some treated areas may begin to shed naturally. This is also when you’ll typically carry out your second IPL session, helping to target more hair entering the growth phase.
• Week 3: You may start to notice slower regrowth and smoother patches of skin. It’s completely normal for results to vary across different areas, as not all hair grows at the same rate.
• Week 4: Hair regrowth is often noticeably reduced, and many people find they need to remove hair less frequently than before starting IPL treatments.

Keep in mind that this is a general guide, and individual results can vary depending on factors such as hair colour, skin tone, treatment plan, and the device used.

With the Philips Lumea 9900 Pro you can achieve up to 80% hair reduction after just two sessions*. By week 4, you’ll have completed the first phase of your IPL treatment plan and can move on to less frequent maintenance sessions, helping you maintain smoother skin with less ongoing effort.

How long to see results from IPL hair removal?

When it comes to IPL, everyone’s result timeline is different. Some people notice a visible reduction in hair regrowth after just a couple of treatments, while others may need several more sessions before seeing significant changes. Both experiences are completely normal.

IPL works by targeting hairs in their active growth phase. Because not all hairs are actively growing at the same time, and because everyone's hair growth cycle is different, an exact IPL results timeline can be a little tricky to pin down.

Some factors can influence your IPL results, including¹:

• Hair colour and thickness.
• Skin tone.
• Treatment area.
• Age and hormonal changes.
• Individual hair growth patterns.

Don't panic if your results seem slower than average. IPL is designed to deliver gradual hair reduction over time, not instant results.

The most important thing is to follow your recommended treatment schedule consistently. Each session helps target a new group of hairs as they enter the active growth phase, bringing you closer to your overall hair reduction goals.

Remember, comparing your results to someone else isn't always helpful. The best way to track your progress is by looking at changes in your own hair regrowth, skin smoothness, and how often you feel the need to remove hair.

How many IPL sessions do I need?

We recommend 4 initial treatments of IPL. These should be spaced 2 weeks apart, meaning your first full round of IPL will take 8 weeks. After this, you’ll only need a touch-up session every 4 weeks.

Factors like hair colour, skin tone, treatment area, and consistency of use can influence your results.

To get the most out of your IPL sessions, use the Philips Lumea 9900 Pro, our new generation IPL, for guided coaching.

Connect your device to the Philips Lumea IPL App to receive real-time tips for personalised, real-time guidance on how to position and move the Philips Lumea 9900 Pro across different areas of your body. This can make each session feel easier to follow, especially if you’re new to IPL or want extra reassurance that you’re using the right technique.

The SmartSkin sensor also helps by analysing your skin and recommending a suitable light intensity setting. This supports a more comfortable treatment experience.

How long does it take for IPL to work: FAQs

When does hair fall out after IPL?

Your IPL first treatment results are likely to be minimal. Instead, treated hair typically begins to shed gradually within 1 to 3 weeks of a session.

This shedding is a sign that the treatment has affected the hair follicle. You may notice some hairs appearing to grow before they fall out, but this is often part of the natural shedding process rather than new hair growth.

Can I use IPL every week?

It's generally best to follow the treatment schedule recommended by your device manufacturer. For many IPL devices, this means treating every 2 weeks during the initial treatment phase.

Using IPL more frequently isn't necessarily more effective, as hairs need time to progress through their growth cycle before they can be targeted by the next treatment.²

Is it normal for some areas to respond faster than others after IPL?

Yes. Different areas of the body can respond to IPL at different rates because hair density, thickness, and growth cycles vary.

For example, you may notice smoother skin in some areas after a few treatments, while others require additional sessions to achieve similar results.

What happens if I miss an IPL treatment?

Missing a treatment doesn't mean you'll lose your progress, but it may slow down your results.

If you miss a session, simply resume your treatment schedule according to the device instructions. Consistency generally helps you achieve the best results in the shortest amount of time.

How long it takes to see results from IPL hair removal is going to vary from person to person. Once you get there, though, it’s well worth it! You can expect up to 5 years of smooth skin** when using the Philips Lumea 9900 Pro, for a complete transformation to your hair removal. Just remember to stay consistent, use the built-in motion guidance, and follow your personalised feedback for safe, effective IPL hair removal.

*Median results on legs

**With ongoing monthly touch-ups following the indicated treatment schedule

Sources

¹Hair Growth, ScienceDirect

²Intense Pulsed Light (IPL) Therapy, NIH