You start IPL enthusiastically, carefully follow the instructions, and expect smooth skin after a few treatments. Yet, you still see hair growth after IPL. This can be frustrating and often leads to doubts about the device's effectiveness.
However, in most cases, this does not mean that IPL isn't working. It primarily has to do with how hair growth works. IPL only affects hairs that are currently in a specific growth phase. Therefore, hair removal with IPL is a process of multiple sessions, not just one treatment.
In this blog, you'll read why hair growth after IPL is normal, how IPL results develop, and what you can realistically expect from at-home hair removal.
What is IPL and why do you still see hair growth after IPL?
IPL stands for Intense Pulsed Light. The device emits light pulses that are absorbed by the pigment (melanin) in the hair. This light energy travels through the hair to the hair follicle, weakening the hair root's growth capacity there.
It's important to understand: IPL only works well on actively growing hairs.
Hairs grow in different phases:
- active growth phase (anagen phase)
- transitional phase
- resting phase
During an IPL treatment, mainly hairs in the active growth phase are affected. But at any given time, only a portion of your body hair is in this phase.
This means that some hairs may still be "dormant" during a session. These can become visible later. This sometimes makes it seem like new hair growth is occurring, while it's actually hairs that were not treatable before.
This is precisely why multiple treatments are needed.
How does hair growth after IPL work in practice?
Many people expect hair to disappear immediately after the first treatment. In reality, IPL is a much more gradual process.
In the first few weeks, this often happens:
| Period | What you usually see |
|---|---|
| Week 1-2 | Hair still seems to grow |
| Week 2-3 | Some hairs fall out spontaneously |
| Week 4-6 | Slower and thinner hair growth |
| Week 6-12 | Visibly reduced hair density |
This explains why you can still see hair growth after IPL treatment. The hairs that are visible are not always "new" hairs. Often, they are treated hairs that still need to fall out, or hairs that become active later.
A good example: imagine mowing a lawn where not all the grass grows at the same time. Some blades are already long, others only emerge later. IPL works in a similar way.
Consistency is therefore more important than speed.
How long do IPL hair removal results really last?
A frequently asked question is: how long do IPL hair removal results last?
That depends on several factors:
- your skin type
- hair color
- hormonal influences
- treatment consistency
- the quality of the IPL device
On average, most users see clear IPL results after about 8 to 12 weeks of regular treatment.
After that, many people switch to maintenance treatments, for example once a month or once every few months.
It's important to have realistic expectations. IPL often significantly reduces hair growth, but it doesn't automatically mean that hair will never grow back. Hormones, age, and genetic predisposition can continue to influence new hair growth.
That's not a sign that IPL "isn't working". It's part of how the body functions.
For whom does IPL work well and for whom less so?
IPL works best when there is sufficient contrast between skin and hair. You can do the test here to see if IPL is suitable for you.
In general:
| Skin and hair type | IPL effectiveness |
|---|---|
| Light skin + dark hair | Usually very suitable |
| Medium skin + dark hair | Often suitable |
| Blonde, red or grey hair | Less effective |
| Very dark skin types | Depending on device and sensor |
Dark hairs contain more melanin, allowing the light to be absorbed better.
With light, grey, or red hair, there is less pigment. As a result, IPL has less "target" to send energy to the hair follicle.
Hormonal factors also play a role. People with hormonal fluctuations, for example due to PCOS, pregnancy, or menopause, can develop new hair growth more quickly, even during an IPL treatment course.
Why does hair sometimes seem to grow back faster at first?
This is one of the biggest misconceptions about IPL.
Some users think IPL makes hair growth worse at first. Usually, that's not what happens.
What you often see:
- treated hairs temporarily become more visible before falling out
- stubble appears harder because the hair detaches
- dormant hairs become active later
- shaving between sessions causes visible stubble
The latter often plays a role. Because you continue to shave during an IPL schedule, stubble remains visible on the surface. This makes it seem as if there is "no difference," while hair growth beneath the skin is already slowing down.
Many people only notice after a few weeks that:
- hairs grow back slower
- require fewer shaving moments
- feel softer
- bald patches appear
The change is often more gradual than expected.
Common mistakes that delay IPL results
Irregular treatment
IPL works with repetition. When you skip sessions, you miss hairs that are just entering the active growth phase.
Consistency is especially important in the first 8 to 12 weeks.
Stopping too soon
Some people stop after 3 treatments because they still see hair growth. But that is often precisely when the process is just starting to build up.
Using the wrong light intensity
Treating too cautiously can reduce effectiveness. A device with a skin tone sensor helps to safely choose an appropriate intensity.
Waxing or epilating between sessions
IPL needs a hair root to work effectively. Waxing or epilating removes that very target.
Shaving is therefore usually the recommended method between IPL treatments.
Unrealistic expectations
Social media often shows extremely fast results. In reality, every skin reacts differently.
IPL is usually more effective in the long term than shaving, but requires more patience in the initial phase.
Practical tips for better IPL results
Maintain a regular treatment schedule
Try not to perform treatments randomly. Consistent treatment gives the hair follicle less time to fully recover.
Take photos of your progress
Because changes happen slowly, many people only notice their progress when comparing photos.
Shave just before treatment
This allows the light pulse to reach the hair follicle better without losing energy to hairs above the skin.
Avoid active sun exposure
Irritated or sun-tanned skin can react more sensitively to IPL.
Use soothing aftercare
After a treatment, the skin may temporarily feel warm or slightly red. A cooling aloe vera gel can help to soothe the skin more quickly and keep it comfortable.
When do IPL results usually become visible?
Most beginners don't immediately see spectacular differences. Often, the process starts subtly.
First signs of effectiveness are usually:
- hairs grow back slower
- fewer shaving moments needed
- softer stubble
- uneven hair regrowth
- small smooth patches
Over time, these differences become greater.
A home device like the Nova One IPL can help by making consistent treatments easier to maintain. Especially features like automatic skin detection and adjustable intensity can contribute to more comfortable home use.
It remains important: the device supports the process, but patience and regularity remain the biggest factors behind good IPL results.
Frequently asked questions about hair growth after IPL
Is hair growth after IPL normal?
Yes. Because IPL only treats hairs in the active growth phase, some hairs will temporarily grow back between sessions. This is part of the natural hair growth process.
How long does it take for IPL to really work?
Many people see a visible reduction after 6 to 12 weeks of consistent treatment. The exact pace varies by skin type, hair color, and hormones.
Why do I see stubble after IPL?
Often, these are hairs that still need to fall out or new hairs that become active later. Shaving between treatments also makes stubble more visible.
Does IPL work permanently?
IPL can reduce hair growth long-term, but hormonal changes can cause hair to regrow later. That's why many users opt for maintenance treatments.
Why does IPL work less well on light hair?
Blonde, red, and grey hairs contain less melanin. As a result, the light energy cannot be absorbed as effectively by the hair follicle.
Conclusion
Hair growth after IPL usually doesn't mean the treatment has failed. It primarily relates to how hair cycles work. Because not all hairs actively grow at the same time, multiple treatments are needed to build visible results.
For beginners, this can sometimes feel contradictory, especially when you still see stubble or new hairs after a few sessions. Nevertheless, IPL results often develop gradually: slower growth, softer hairs, and increasingly less density.
Therefore, the most important thing is consistency, realistic expectations, and a routine that suits your skin and pace.
Shares:
IPL and PCOS: does IPL work for hormonal hair growth?