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Skin Health

Dermapen 4 in Penrith: what skin needling can and can't do

By Natalie Hoyle · Registered Nurse, Cosmetics · 11 August 2026

Minimalist gold line illustration of a face in profile with fine evenly spaced dots.

Skin needling uses fine needles to make thousands of controlled micro-injuries in the skin, which triggers a repair response and builds new collagen over the following weeks. The Dermapen 4 is a pen device that does this vertically rather than by rolling, with the needle depth adjustable as the treatment goes. Depth is what determines whether you’re treating surface texture or indented scarring, and it’s the part most clinics never mention.

In short: Needle depth decides the result. Around 0.25mm to 0.5mm works on texture and tone; above 1.5mm is what reaches indented acne scarring. We work between 0.5mm and 2.0mm and change it across a single face. Expect 24 to 72 hours of redness like mild sunburn, two to three days before make-up, and three to six sessions spaced four to six weeks apart.

What’s actually happening to your skin

The repair response is the treatment. Fine needles make thousands of tiny channels through the upper layers, each one small enough to heal fast and deliberate enough to set off wound repair. Your skin sends fibroblasts in, and over the following weeks it lays down new collagen and elastin.

People flinch at the word injury. Don’t. The whole thing works because skin repairs itself better than it maintains itself, and a controlled wound heals more predictably than an accidental one.

What that means on the day: not much. You’ll be red. The actual change builds over six to twelve weeks as new collagen matures, and it keeps building across a course. Anyone showing you a same day result is showing you swelling. The Australasian College of Dermatologists publishes patient information on skin procedures worth reading alongside anything a clinic tells you.

Depth is the whole thing

Needle depth is the single decision that most affects what you get, and it’s adjustable on a pen device like the Dermapen 4.

Shallow, somewhere around 0.25mm to 0.5mm, works on surface texture, tone and product absorption. Gentle, short recovery. It won’t touch an indented scar.

Mid range, roughly 0.5mm to 1.5mm, is where most facial work sits. Enlarged pores, fine lines, uneven texture, general dullness.

Deeper than 1.5mm is scar territory. Rolling and boxcar acne scars need the needles to reach the fibrous tissue tethering the skin down. That also means more redness, more recovery, and more reason to care who’s holding the device.

A clinic running every face at the same depth is running a protocol, not a treatment. We work between 0.5mm and 2.0mm and change it across a single face, because the skin under your eyes isn’t the skin on your cheek.

Why we use a Dermapen 4

There are three ways to needle skin and they don’t do the same thing.

A roller is a drum of fixed needles you roll across the face. The needles go in at an angle and come out at an angle, so each one carves a small arc instead of a clean channel. Cheap, everywhere, and the reason a lot of people think needling means scratching.

A pen drives a disposable cartridge of needles straight in and straight out, vertically, at speed. No dragging. Depth adjusts as you go.

A stamp presses down without any lateral movement at all, which we also do, and which we’ve written about in dermal stamping vs microneedling.

The Dermapen 4 sits in the second group. We wanted vertical needling rather than rolling, and we wanted to change depth mid treatment without swapping devices. It does both, and the finer settings let us work close to the eyes and around the nose where a roller is a bad idea.

We pair it with exosome and PDRN serums while the channels are still open, then finish with LED light therapy to settle things down. The treatment itself is on our dermal stamping page.

What recovery actually looks like

Recovery is two to three days of visible change for a mid depth facial treatment, not the “minimal downtime” most clinics advertise.

On the day you’ll be red like moderate sunburn, warm and tight. A bit of pinpoint bleeding during the session is normal and stops within minutes.

The next day or two you’re still pink, maybe puffy around the eyes, and your skin feels dry and looks slightly rough. That’s the day most people would rather work from home.

By day two or three the redness settles to a flush and light flaking starts. Make-up’s usually fine from there. The flaking finishes somewhere in the first week, and skin often looks a bit dull before it looks better, which catches people out.

From week two the texture starts shifting, and collagen is still building at week six and beyond. Go deeper and every stage stretches: scar work can mean five to seven days of visible recovery instead of two to three.

How many sessions you’ll actually need

Three to six sessions, four to six weeks apart, is the realistic range for texture and tone. Indented scarring usually needs six or more and improves gradually rather than dramatically.

The spacing isn’t us managing the diary. It’s roughly how long a collagen remodelling cycle takes, and going again before it finishes means inflaming skin that’s still repairing.

We’ll give you a number at consultation, and we’ll tell you if it’s fewer than you were expecting. If your main issue is pigmentation rather than texture, a laser skin treatment or a chemical peel will probably suit you better, and we’d rather say that than sell you the wrong course.

Risks and Considerations

Every cosmetic procedure carries risk, and skin needling is no exception.

Common and expected: redness like sunburn for 24 to 72 hours, tightness, dryness, pinpoint bleeding during treatment, and light flaking from day two.

Less common: swelling for a day or two, bruising, a temporary flare of congestion, milia, and sensitivity to skincare you normally tolerate.

Uncommon but serious: infection, which can need antibiotics. Scarring, which is uncommon but permanent when it happens. Granulomas. Reactivation of cold sores. Post-inflammatory pigmentation, which is more likely in deeper skin tones. Worsening of active acne if the skin is treated too early.

There are also people we won’t treat, or won’t treat yet:

  • Active acne, cold sores, or any infection where we’d be working. Needling through a breakout spreads bacteria.
  • Isotretinoin now or recently. There’s a washout period, and your prescriber’s advice governs.
  • A history of keloid or hypertrophic scarring.
  • Pregnancy or breastfeeding.
  • Some autoimmune and bleeding conditions, or blood thinning medication.
  • Sunburn, or a fresh tan.

If any of those apply we might decline, or ask you to come back later. That’s about protecting your skin, and it isn’t a judgement about you. You can check the registration of any Australian practitioner on the AHPRA register, and healthdirect carries independent information on skin procedures.

Frequently Asked Questions

Does skin needling hurt?

There’s sensation, and it depends on depth and area. Numbing cream goes on first. Most people describe mid depth work as a strong prickling with some heat, worse over bone like the forehead and jaw. Scar work at deeper settings is more uncomfortable than a general texture treatment. Individual experiences vary, and if it gets too much we stop and adjust, which is normal rather than a failure.

How is Dermapen 4 different from what other clinics use?

It’s a pen device, so it needles vertically rather than rolling. The practical differences are no dragging across the surface, depth that adjusts without changing devices, and single use cartridges. Plenty of clinics use pens. Fewer adjust the depth properly once they’re in there, which matters more than the name on the handpiece.

Can I have it if I’ve got acne scarring?

Usually yes, and it’s one of the better evidenced uses, but timing matters. It works on the scar, not on active acne, so breakouts have to settle first. Indented scars tend to respond better than raised ones, and it’s a longer course than texture work. Results vary with scar type and depth.

Will it fix large pores?

It can make them less obvious, and that’s the honest version. Pore size is largely genetic and can’t be permanently changed. Improving the collagen support around a pore changes how it reads on the skin. It doesn’t shrink it.

How soon will I see something?

Skin often looks brighter within a week or two, and that’s mostly hydration and surface repair rather than collagen. The realistic assessment point is eight to twelve weeks after your first session, and it keeps improving through a course.

Are home rollers worth it?

They’re shallow by design, which caps both the risk and the result. The real problem is hygiene: reused needles on unprepared skin cause more infections and irritation than anything else we see. If you use one, keep it to yourself, clean it properly, and keep it shallow.

Can I combine it with other treatments?

Yes, and the order matters. LED afterwards is common and settles inflammation. Peels and lasers are usually spaced apart rather than stacked into one visit. Tell us everything you’re doing, including at home, so we can sequence it.

When to Call the Clinic

Contact the clinic on 0434 529 646 if you experience:

  • Increasing pain rather than pain that settles over the first day
  • Spreading redness, heat, or any discharge from the treated area
  • Fever above 38°C
  • Blistering, or skin that turns white, grey or dusky
  • Any change in vision or unusual pain around the eyes
  • Anything that doesn’t feel right to you, whether or not it appears on this page

Our risks and complications page covers these in more detail. If symptoms are severe or you can’t reach us, go to your nearest emergency department or call 000.

If you’re thinking about skin needling, book an assessment rather than a treatment. We’ll look at your skin, tell you what’s realistic, and tell you plainly if something else would suit you better. To book a consultation and discuss whether skin needling suits your skin, visit our booking page or contact us. Pricing is discussed at consultation so we can quote the course you actually need, and there’s more on our pricing page.

BLAAH is located at Shop G03, 2 Lord Sheffield Circuit, Penrith NSW 2750.


This article is for educational purposes only and does not constitute medical advice. Skin needling is a cosmetic procedure with risks, and individual healing varies. Read more about risks and complications related to non-surgical procedures: https://blaah.com.au/risks-complications/.

Have questions about this treatment?

Book a consultation and we will talk through what makes sense for your skin. Or send us an enquiry if you want to know more first.

BLAAH is located at 2 Lord Sheffield Circuit, Penrith NSW 2750. Open Wednesday to Friday 9:30am-5:30pm, alternating Saturdays 9:00am-12:00pm.

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