How Many Sessions Will It Actually Take? The Honest Answer
“How many sessions will I need?” It’s the first question almost every new client asks — and fair enough. You want to know what you’re signing up for.
The truthful answer is: it depends. But there’s a really useful framework that helps us give you a much better estimate than just guessing, and it’s called the Kirby-Desai scale.
What Is the Kirby-Desai Scale?
The Kirby-Desai scale is a scoring system developed by two dermatologists to help estimate the number of laser tattoo removal sessions needed. It scores your tattoo across six factors, and the total gives a rough guide to session count.
The six factors are: skin type (Fitzpatrick scale), tattoo location on the body, colour of the ink, amount of ink, presence of scarring or tissue changes, and whether the ink has been layered (e.g. cover-up tattoos).
Breaking Down Each Factor
Skin type: Lighter skin tones (Fitzpatrick I-III) respond fastest because the laser can be used at higher energies without risking pigmentation changes. Darker skin tones can absolutely be treated, but settings need to be adjusted — this is why technology matters.
Location: Tattoos closer to the heart (like the chest or upper back) respond faster because blood circulation and lymphatic drainage are better there. Extremities like hands, feet and fingers are slowest.
Ink colour: Black and dark grey are the most responsive — they absorb laser energy across the widest wavelength range. Blues and greens are moderate. Yellow, white, and light colours are the most stubborn.
Ink density: A fine-line minimalist tattoo is much easier to clear than a heavily saturated traditional piece with thick black outlines and dense fill.
Scarring: Any scarring or raised texture in the tattoo makes removal slower and sometimes limits how completely it can be cleared.
Cover-ups and layering: If your tattoo is covering an older one (or has been touched up multiple times), there are multiple layers of ink to work through. These take significantly more sessions.
What’s the Typical Range?
For a straightforward, small, black tattoo on the upper body in lighter skin — you might be looking at 5 to 8 sessions. A large, colourful, or heavily saturated piece on a lower limb might be 12 to 15 or more. Cover-ups can go higher.
At Rethink, we assess all of these factors at your initial consultation and give you a realistic range — not an optimistic number to get you through the door.
What You Can Do to Reduce Your Session Count
You have more influence over this than you might think — but first, let’s talk about something that trips people up more than anything else: patience between sessions.
Why You Need to Wait 8–16 Weeks Between Treatments
This is probably the most misunderstood part of the whole process, and it’s worth explaining properly.
When the laser hits your tattoo, it doesn’t remove the ink — it shatters it into tiny fragments. Your immune system then does the actual removal work, sending white blood cells to slowly carry those fragments away through your lymphatic system. That process takes time. A lot of time.
Treating too soon — before your body has finished clearing the previous session’s ink — is one of the biggest mistakes people make. Here’s why it’s counterproductive:
- The skin needs to fully heal before it can safely absorb another round of laser energy
- Your immune system needs time to do its job — rushing it doesn’t speed things up, it just overwhelms the process
- Treating inflamed or incompletely healed skin increases your risk of scarring and hypopigmentation
- You may actually look like you have more ink than you do, because the debris from the last session hasn’t cleared yet
Eight weeks is the absolute minimum for most people. 12-16 weeks — or even longer — is often better, particularly for darker skin tones, dense ink, or if your immune system needs a little more support.
The irony is that waiting longer between sessions often means fewer sessions overall, because each treatment is working on a genuinely fresh canvas.
Everything Else That Helps
Once you’ve got the timing right, the rest is about supporting your immune system in the work it’s already doing. Staying out of the sun, not smoking, drinking plenty of water, exercising regularly, and taking good care of the treated area between sessions all make a real difference. The healthier you are, the faster your body clears the shattered ink — and the fewer sessions you’ll ultimately need.
Book a Consultation
The best way to get started is by getting an ONLINE QUOTE . At Rethink Laser in Robina, we take the time to assess your tattoo properly and give you an honest, informed picture of what to expect. No guesswork — just real answers.
Michelle is the founder of Rethink Laser Tattoo Removal, Gold Coast’s longest-running specialist tattoo removal clinic. Established in Robina in 2010, Rethink has helped thousands of Gold Coast clients safely remove unwanted ink using the advanced PicoWay laser system.
Michelle trained at the Rocky Mountain Laser College in Colorado and holds a Queensland Health Radiation Licence — meaning every treatment at Rethink meets strict safety and compliance standards. With over 15 years of hands-on experience, Michelle brings both technical expertise and genuine care to every client’s removal journey.
When she’s not in the clinic, Michelle has a serious case of wanderlust. She is on a mission to visit 60 countries before she turns 60 — and at 46 countries and counting, she’s well on her way.
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