If you have a black tattoo, you have probably heard that it is the “easiest” colour to remove. There is real science behind that reputation. Black ink absorbs every wavelength of laser light, which means almost any tattoo-removal laser can target it effectively. Coloured inks are far more selective about the light they absorb, so they need specific wavelengths and, often, more patience to clear.
In this guide we explain exactly why black fades fastest, why greens and blues sit at the difficult end of the spectrum, and how a dual picosecond and nano-second (Q-Switched) laser system gives stubborn colours a much better chance. For the bigger picture on how this affects your overall treatment plan, our sessions and results guide walks through what to expect from start to finish.
How laser tattoo removal actually works
Laser tattoo removal does not “erase” ink. It shatters ink particles into fragments small enough for your body to carry away. The laser fires very short pulses of light that the ink absorbs as energy. That energy breaks the pigment apart, and your lymphatic system then gradually clears the fragments over the weeks and months that follow.
The key word is absorbs. A laser can only break down an ink particle if that particle soaks up the wavelength being fired at it. Light that passes straight through, or bounces off, does nothing. This single principle explains the entire colour hierarchy of tattoo removal — and why black behaves so differently from teal or lime green.
If you would like a fuller walkthrough of the process, our page on how laser tattoo removal works covers the mechanics in plain language.
Why black absorbs every wavelength
Black is not really a colour in the way red or blue is. Black pigment absorbs light across the whole visible spectrum — that is precisely why it looks black to your eye. Nothing is being reflected back.
For tattoo removal, this is a gift. Whatever wavelength a laser delivers, black ink will absorb a good portion of it and break down. That is why black is the most reliable colour to treat and usually the first to show visible fading. Most people see black soften noticeably within the early sessions, even though full clearance still takes a course of treatments.
Dark blues and dark browns sit close behind black for the same reason: they absorb a broad range of wavelengths and respond well. As a general rule, the darker and denser the ink, the more predictably it fades — though age, depth, layering and skin type all still play a part.
Why greens and blues are the slowest
Coloured inks are selective. A green particle looks green because it reflects green light and absorbs other wavelengths. To break it down, you have to hit it with the specific wavelength it will actually absorb — usually one that sits opposite it on the colour wheel.
Greens and certain bright blues are notoriously stubborn because the wavelengths they absorb are harder to deliver with power and precision. Older single-wavelength lasers simply could not reach them well, which is why many people with green or blue tattoos were once told their ink was “permanent”. Reds, oranges and yellows have their own quirks too, but greens and teals are usually the ones that test patience the most.
This is also why a tattoo that mixes black outlines with coloured fill can fade unevenly. The black lines lift early while the coloured sections lag behind. That is completely normal and not a sign that anything is wrong — different pigments are simply clearing at different rates. Our tattoo removal ink colours guide breaks down how each shade tends to behave.
If your tattoo is a cover-up, there may be layers of ink stacked on top of each other, sometimes hiding difficult pigments beneath darker work, so it can take longer than a single-layer tattoo of the same size. An honest assessment up front matters here, which is why we always talk through what is realistic before you commit.
Why a dual laser system makes the difference
This is where the right equipment changes everything. We use both a nano-second Q-Switched laser and a picosecond laser, and they each earn their place.
The Q-Switched laser is highly effective on black and dark inks. It delivers strong, well-absorbed pulses that break down those broad-spectrum pigments efficiently. For the bread-and-butter work of fading black tattoos, it is a proven workhorse.
The picosecond laser fires far shorter pulses — measured in trillionths of a second — which shatter ink with a more photomechanical, shattering action rather than relying purely on heat. That makes it particularly valuable for the stubborn greens and blues that older technology struggled with. Having both means we can match the laser to the ink in front of us, rather than forcing one tool to do every job.
As a nurse-led, medically supervised clinic, this matched approach is part of how we keep treatment both effective and gentle on your skin. Registered nurse Marissa, who trained under Lorenzo Kunze at the iLaser Academy, tailors the laser and settings to your specific tattoo. We also use Zimmer cooling throughout to keep you as comfortable as possible.
Ready to find out how your colours will respond? Booking a free phone consultation is the easiest first step — we will give you honest, realistic guidance with no pressure.
What this means for your treatment plan
The practical takeaway is simple. If your tattoo is mostly black, you can usually expect steadier, earlier fading. If it features greens, bright blues or layered cover-up ink, build a little more patience into your expectations. Most tattoos take somewhere in the range of five to fifteen sessions depending on ink colour, age, depth, density, skin type and placement — and colour is one of the biggest variables in that range.
Results appear gradually as your body clears the shattered ink, not overnight, and sessions are spaced roughly six to eight weeks apart. Seeing real examples helps set expectations, so it is worth browsing our before and after gallery to see how different colours progress. There are no guarantees, and anyone promising a fixed number of sessions for a complex colour tattoo is overselling. What we can promise is an honest plan built around your specific ink.
If you are ready to get started, book your free consultation today and we will talk you through exactly what your colours are likely to need.
Frequently asked questions
Why does black tattoo ink fade fastest?
Black pigment absorbs every wavelength of laser light, so almost any tattoo-removal laser can target and break it down effectively. Coloured inks only absorb specific wavelengths, which makes them more selective and generally slower to clear.
Which tattoo colours are hardest to remove?
Greens and certain bright blues are usually the most stubborn, because the wavelengths they absorb are harder to deliver. Reds, oranges and yellows can also be tricky. A picosecond laser improves results on these difficult colours.
Can green and blue tattoos be removed at all?
Yes. Modern picosecond technology has made green and blue ink far more treatable than it once was. It often takes more sessions than black, and results still appear gradually, but these colours can usually be faded significantly or removed.
Will my black-and-colour tattoo fade evenly?
Often not. The black outlines tend to lift earlier while coloured sections lag behind, because different pigments clear at different rates. This uneven fading is completely normal and not a sign that treatment is failing.
How many sessions will my black tattoo need?
It depends on the tattoo’s age, depth, density, your skin type and placement, but black typically responds in the earlier part of the usual five-to-fifteen session range. A free consultation lets us give you a realistic estimate for your specific tattoo.