Stretch marks (striae distensae) aren’t a pigmentation problem or a dryness problem. They are scars formed in the dermis when skin is stretched faster than its structural framework can adapt. The collagen and elastin network tears, inflammation follows, and the skin heals with the disorganised, thinned tissue that gives stretch marks their characteristic indented, streaky appearance.
That single fact explains almost everything people find frustrating about them:
- Creams don’t remove them because the damage sits well below where a topical can act.
- They don’t “go away” because scar tissue is permanent tissue.
- Weight loss doesn’t clear them; it often makes them more visible, because there’s less volume beneath to smooth them out.
- They can’t be prevented reliably. Australian public health guidance is blunt about this: the evidence suggests creams and lotions can’t prevent stretch marks.
They’re also extremely common. The Australasian College of Dermatologists reports that roughly 9 in 10 pregnant women develop them, along with about 7 in 10 adolescent girls and 4 in 10 boys during puberty. Rapid weight change, bodybuilding, corticosteroid use and conditions involving excess cortisol all contribute. If you have them, you are firmly in the majority.
Striae Rubra vs Striae Alba: the Distinction That Decides Your Result
This is the most important section on this page, and it’s the thing most clinics fail to explain before taking your money.
Striae rubra are the early stage — red, pink or purple, often slightly raised, sometimes itchy. There’s still active blood supply and living cellular machinery in the area. The tissue is, in a meaningful sense, still healing.
Striae alba are the mature stage: white, silvery, often slightly sunken, with a shiny surface. Blood vessels have regressed, melanocytes are reduced or absent, and the dermis is thin and inactive.
Rubra responds substantially better than alba to every treatment modality studied. The ACD states plainly that early red striae respond better to intervention than established white ones, and the clinical literature agrees: striae are most likely to respond at their early stage, and once they’ve turned white, options narrow considerably.
Does Laser Treatment for Stretch Marks Actually Work?
Yes — with an honest definition. Laser improves stretch marks measurably. It does not remove them, and the ACD is unambiguous that no treatment removes striae completely. Any clinic promising erasure is not being straight with you.
What laser does is create thousands of microscopic columns of controlled thermal injury through the scarred dermis. The surrounding untreated tissue drives rapid healing, and the repair process lays down new, better-organised collagen and elastin. Over several sessions, the scar remodels: texture evens out, the indentation softens, and colour moves closer to surrounding skin.
What the Evidence Shows
A case series using the Icon 1540 nm non-ablative fractional Er:glass laser with the XD handpiece — the same platform and wavelength we use — treated postpartum women with abdominal stretch marks ranging from 9 months to 19 years old, all Fitzpatrick types III–IV. Patients received 1–5 sessions at minimum four-week intervals. Blinded assessors rated results as “improved” to “much improved” on the Global Aesthetic Improvement Scale, and all eight patients reported satisfaction, with 75% very satisfied. Side effects were transient: redness in all patients resolving in 2–7 days, and post-inflammatory hyperpigmentation in three patients that cleared by three months.
Across the broader literature:
- 1550 nm fractional photothermolysis produced significant improvement in striae alba at two months, with measurable increases in epidermal thickness and collagen and elastic fibre content.
- 1064 nm Nd:YAG for striae rubra: 55% of patients and 40% of assessing physicians rated improvement as excellent.
- Microneedling achieved around 50% improvement across striae types in 1–3 treatments, with no permanent adverse effects.
- Bipolar radiofrequency combined with tretinoin reported the strongest figures of any combination: 84.5% effectiveness with 95.7% patient satisfaction.
- Fractional CO₂ produces variable results: some patients improve significantly, others barely at all.
Our own clinical experience aligns with that range: roughly 70% of patients notice meaningful improvement with a completed course.
Treatment Options Compared
| Treatment | Best for | Typical course | What to expect | Trade-off |
|---|---|---|---|---|
| Non-ablative fractional 1540 nm | Both rubra and alba; all skin types | 4–6 sessions, 4–6 weeks apart | Texture and colour improvement, builds over months | Gradual; needs a full course |
| Pulsed dye laser (585 nm) | Red striae rubra specifically | 3–5 sessions, 4–6 weeks apart | Moderate reduction in redness | Caution or avoid in Fitzpatrick V–VI |
| Fractional CO₂ (ablative) | Deep, textured striae alba | 2–3 sessions | Strongest textural remodelling | Real downtime; higher PIH risk |
| Microneedling | All types, all skin tones | 3–6 sessions | ~50% improvement reported | Slower; often combined |
| Radiofrequency + tretinoin | Alba, when laser alone plateaus | Variable | Highest combination figures in the literature | Tretinoin unsuitable in pregnancy |
| Topical retinoids alone | Early rubra only | Ongoing | Modest improvement in early marks | Not for pregnancy or breastfeeding |
| Creams and oils | Adjunct hydration only | Ongoing | No prevention, minimal treatment effect | Best used as support, not treatment |
Which Laser Is Best for Stretch Marks?
There isn’t one universal answer, but there is a clear default and clear exceptions.
Non-ablative fractional laser is the workhorse
For most body stretch marks, non-ablative fractional laser at 1540 nm is the sensible first choice. It reaches deeply enough to remodel dermal collagen while leaving the epidermis largely intact — meaningful results with downtime measured in days rather than weeks, and a considerably safer profile on medium and deep skin tones than ablative alternatives.
We treat stretch marks with the ICON 1540 fractional laser, using the XD microlens handpiece designed specifically for deeper dermal remodelling in scar and striae tissue. You can see the full platform on our technology page and the treatment overview on our stretch mark removal page.
Pulsed dye laser — for red marks, and with caveats
Pulsed dye laser targets haemoglobin, so it works specifically on the redness of striae rubra rather than on texture. It’s a useful adjunct in the early window. The important caution: it should be used with extreme care, or avoided entirely, in Fitzpatrick phototypes V and VI, where the risk of pigment complications is high.
Ablative fractional CO₂: more power, more downtime
For deep, entrenched striae alba, ablative fractional CO₂ delivers the strongest remodelling. It also delivers real downtime and a meaningfully higher risk of post-inflammatory hyperpigmentation. Results in the literature are genuinely variable. It’s a reasonable escalation when non-ablative approaches have plateaued, not a first move.
Combination approaches
The strongest published outcomes come from combinations, not single modalities. Pairing fractional laser with microneedling, or with radiofrequency and topical retinoids between sessions, consistently outperforms any one treatment alone. The same principle applies here as in acne scar treatment, where layered approaches to dermal scarring have long been standard.
What Results Are Realistic? Before and After
Here’s the honest version, which is worth more to you than an optimistic one.
What genuinely improves
- Texture. The indentation softens; the surface feels and looks closer to surrounding skin.
- Colour. Red and purple marks fade toward skin tone. White marks pick up some colour as circulation and pigment activity partially return.
- Definition. Edges blur, so marks read as a subtle change in the skin rather than distinct stripes.
- Overall skin quality. The treated area typically looks firmer and better-toned, which reduces how much the eye is drawn to the marks.
What doesn’t happen
- They don’t disappear. Under close inspection in direct light, they’ll still be findable.
- Deep, wide, decades-old white striae won’t return to flat, unmarked skin.
- One session won’t do it. Judging results after treatment one is the most common reason people quit early.
A realistic mental model: think 40–70% visual improvement over a full course for a good candidate — less for old wide alba, more for fresh rubra. The goal is that someone would have to be looking for them.
On before-and-after photos generally: stretch marks photograph dramatically differently depending on lighting angle. Side-lighting exaggerates texture; flat frontal lighting hides it. When you’re assessing any clinic’s results, including ours in our before and after gallery, check that lighting, angle and distance are consistent between the two shots. If they’re not, the photo isn’t telling you anything.
How Many Sessions, and How Long Until You See Results?
Most patients need 4–6 sessions spaced 4–6 weeks apart. Larger areas or extensive old striae alba can require more.
The timeline matters as much as the number, because stretch mark treatment is one of the slowest-revealing treatments in aesthetics:
| Stage | What’s happening |
|---|---|
| Days 1–3 | Redness, warmth, mild swelling. The treated area may look worse before better. |
| Week 1 | Redness settles; skin may feel rough or sandpapery as it resurfaces. |
| Weeks 2–6 | Early collagen deposition begins. Little visible change yet. |
| Months 2–3 | First clearly visible textural improvement, typically after session two or three. |
| Months 3–6 | The main result window. Collagen remodelling continues well past your final session. |
| Months 6–12 | Continued gradual refinement. This is when you assess the true outcome. |
Does It Hurt? What’s the Downtime?
Most patients describe fractional laser on the body as a hot prickling sensation with the passes — comparable to a strong sunburn while it’s being delivered. Contact cooling and topical numbing make it very manageable. Treatment time depends on the area: a stomach or a pair of outer thighs typically takes 30–45 minutes.
Downtime is modest but real, and worth planning around:
- First 24–48 hours: redness, warmth and some swelling, similar to sunburn. This is expected and resolves.
- Days 3–7: skin feels dry and slightly rough as the treated columns resurface. Some bronzing or fine flaking is normal.
- Return to work: immediately; body areas are covered.
- Gym and swimming: wait 48–72 hours. Sweat, chlorine and friction on freshly treated skin all raise irritation risk.
- Sun: the non-negotiable one. Treated skin is vulnerable to post-inflammatory hyperpigmentation, and in Sydney’s UV that risk is year-round. Cover the area or use SPF 50+ rigorously for at least four weeks. Our laser sun-safety guide covers timing a course around an Australian summer.
Is Laser Stretch Mark Removal Safe for Darker Skin Tones?
Yes, with the right device and settings — and this genuinely matters more here than in most treatments.
Deeper skin tones carry more epidermal melanin, which competes for laser energy and raises the risk of post-inflammatory hyperpigmentation. The published research reflects this: in the 1540 nm case series on Fitzpatrick III–IV patients, three of eight developed PIH, all of which resolved by three months. That’s a manageable, temporary complication — but only because the wavelength and parameters were appropriate.
What to insist on:
- Non-ablative over ablative as the starting point for Fitzpatrick IV and above.
- Pulsed dye laser used cautiously or not at all at phototypes V–VI.
- A test patch before treating a large area.
- Conservative settings across more sessions rather than aggressive settings across fewer.
- Strict sun avoidance before and after — the single biggest modifiable PIH risk factor.
The same principles we outline in our guide to laser safety across skin tones apply directly to body treatment.
Who’s a Good Candidate — and When to Wait
Good candidates
- Red or purple stretch marks — you’re in the optimal window
- White stretch marks where you accept improvement rather than removal
- Weight stable for at least 3–6 months
- Realistic about needing a full course and a 3–6 month wait for the verdict
- Willing to be strict with sun protection
Wait, for now, if you’re
- Pregnant or breastfeeding. Postpone until after; retinoid adjuncts are also contraindicated.
- Still actively gaining or losing significant weight. New tearing will undo the work.
- Recently on isotretinoin; most clinics require a 6-month gap.
- Currently tanned or recently sun-exposed on the treatment area.
- Prone to keloid scarring in the area concerned.
- Expecting removal. If nothing short of gone will satisfy you, this isn’t the right treatment.
If you’ve had a baby, a good rule of thumb is to wait until you’ve finished breastfeeding and your weight has been stable for a few months — but don’t wait so long that red marks turn white. There’s a genuine trade-off there, and it’s worth discussing at a skin assessment rather than guessing.
How Much Does Laser Treatment for Stretch Marks Cost in Sydney?
Cost is driven by four things:
- Area size: a small hip area versus a full abdomen, or both outer thighs, is a large difference in treatment time and consumables.
- Number of sessions: usually 4–6, occasionally more for extensive alba.
- Whether you combine modalities: adding microneedling or RF between laser sessions changes the total.
- Package versus per-session pricing: a course is almost always better value than paying individually.
Because area is the dominant variable, no honest clinic can quote you accurately from a web page. Our stretch mark removal treatment page sets out what’s included in a course, our guide to how per-session and package pricing compare explains how the maths usually works out, and you can request a free quote for the specific areas you want treated.
Getting the Best Possible Result
Before your course
- No sun, solarium or fake tan on the area for two weeks
- Stop retinoids 3–5 days prior
- Arrive with clean skin — no oils or moisturiser on the area
- Disclose all medications, especially isotretinoin within six months
- Take before photos yourself, in consistent lighting; memory is unreliable and you’ll want them
Between sessions
- Moisturise daily; well-hydrated skin heals better
- SPF 50+ or physical cover on the treated area, every day
- Consider a retinoid between sessions if you’re not pregnant or breastfeeding; the combination data is genuinely stronger than laser alone
- Keep weight stable
Afterwards
- Continue sun protection for at least three months
- Resist judging the result before month three
- Book your assessment review rather than deciding alone in a mirror
Choosing a Clinic in Sydney
Five questions that separate a proper protocol from a machine being pointed at you:
- Are my stretch marks rubra or alba, and how does that change your plan? If they can’t classify your marks, they aren’t planning around the single biggest predictor of your outcome.
- Which device and wavelength, and why that one for my skin type? “Laser” is not an answer.
- What’s my Fitzpatrick type, and will you test a patch? Essential for olive, brown and Black skin.
- How many sessions, and when will you assess the result? The right answer includes a 3–6 month assessment point, not a week-six one.
- Can I see before-and-afters of stretch marks specifically, shot in consistent lighting?
For context on how we treat dermal scarring more broadly, our post on laser treatment for acne scars and large pores covers closely related tissue biology. To discuss your own case, get in touch with our Sydney CBD clinic.
For general background on striae, the Australasian College of Dermatologists’ patient information on striae is the most reliable independent Australian source available.
Laser Treatment for Stretch Marks: Frequently Asked Questions
Yes, but it improves rather than removes them. Laser creates controlled micro-injury in the dermis, prompting new collagen and elastin to replace disorganised scar tissue. Studies report meaningful improvement in texture and colour, and around 70% of patients notice a visible difference over a full course. The ACD is clear that no treatment removes striae completely.
No. Stretch marks are permanent scars in the dermis, and no current treatment eliminates them entirely. What laser achieves is a durable improvement; the remodelled collagen doesn’t undo itself, so results generally hold long-term provided your weight stays stable and no new stretching occurs.
Most people need 4–6 sessions spaced 4–6 weeks apart. Extensive or long-standing white stretch marks may need more. Results continue building for 3–6 months after the final session, so the true outcome shouldn’t be judged at the end of the course.
Red stretch marks (striae rubra) respond substantially better. In the early stage there’s still active blood supply and cellular activity, so the tissue remodels more readily. White stretch marks (striae alba) have thinned, inactive dermis and typically need more sessions for less dramatic gains. If your marks are still red, treat now rather than waiting.
Expect the first visible textural change around 2–3 months in, usually after your second or third session. The main result window is months 3–6, with continued refinement up to 12 months. Very little is visible in the first six weeks, which is normal and not a sign it isn’t working.
It’s uncomfortable rather than painful; most people describe a hot prickling sensation, like strong sunburn, while the passes are delivered. Contact cooling and topical numbing make it manageable. A stomach or both outer thighs typically takes 30–45 minutes.
Modest. Expect redness, warmth and mild swelling for 24–48 hours, then dry, slightly rough skin for around a week as the treated area resurfaces. You can return to work immediately since body areas are covered. Avoid the gym, swimming and saunas for 48–72 hours, and be strict with sun protection for at least four weeks.
Yes, with appropriate device selection. Non-ablative fractional laser is the safer starting point for Fitzpatrick IV and above, while pulsed dye laser should be used with extreme caution or avoided at phototypes V–VI. In one 1540 nm study on Fitzpatrick III–IV patients, three of eight developed temporary post-inflammatory hyperpigmentation that resolved within three months. Always request a test patch.
No — treatment should be postponed until after pregnancy and breastfeeding. Beyond the treatment itself, retinoid adjuncts commonly used alongside laser are contraindicated. It’s also practical to wait, since ongoing skin stretching would undermine the result.
It depends primarily on the area treated, the number of sessions and whether modalities are combined. A small hip area costs substantially less than a full abdomen or both thighs. Packages of 4–6 sessions are almost always better value than per-session pricing, and most Sydney clinics quote after assessing the area rather than publishing a flat rate.
They work differently and often work best together. Microneedling creates mechanical micro-injury and reports around 50% improvement across striae types in 1–3 treatments, with an excellent safety profile on all skin tones. Fractional laser delivers deeper, more controlled thermal remodelling. The strongest published outcomes come from combination protocols rather than either alone.
The treated marks don’t return; remodelled collagen stays remodelled. However, new stretch marks can form if you undergo further rapid weight gain, pregnancy or growth. This is why clinics recommend treating once weight has been stable for several months, and why post-pregnancy treatment is usually best left until you’ve finished having children.
Not for removal. Australian public health guidance states the evidence suggests creams and lotions can’t prevent stretch marks, and while some may modestly improve the appearance of early marks, none reach the dermal scar tissue where the damage sits. Prescription retinoids have real, if modest, evidence in early red striae but are unsuitable during pregnancy and breastfeeding.
The Bottom Line
Stretch marks are scars, and scars don’t vanish. But they do remodel, and laser is by a clear margin the most effective way to make that happen.
Two things determine your result more than anything else: how early you treat, because red marks respond far better than white ones, and whether you complete a full course and wait long enough to judge it, because the meaningful change happens in months three to six, not week six.
Go in expecting your stretch marks to become something you have to point out rather than something you hide, and laser treatment will very likely meet or beat that expectation. Go in expecting them gone, and no clinic on earth can help you.
Find Out If Your Marks Are in the Responsive Window
If you’d like to know whether your marks are in the responsive window and what a realistic course looks like for your areas, book an assessment at our Sydney CBD clinic, or request a free quote.
