Stretch marks, or striae distensae, are dermal scars rather than simply loose skin. No current treatment can responsibly promise to remove them completely. Radiofrequency microneedling may improve texture and contrast in suitable patients by stimulating remodelling within the scarred tissue, but the degree of change varies.
What stretch marks are
Stretch marks develop when the dermis is exposed to rapid mechanical stretching and biological change. Newer marks often appear red or purple (striae rubra); older marks tend to become pale or white (striae alba). Their age, colour, location and depth influence treatment expectations.
What the evidence suggests
Clinical studies and systematic reviews support microneedling and fractional radiofrequency microneedling as options for improving the appearance of striae. Comparative research has also described collagen and elastic-fibre changes after treatment.
Evidence is encouraging, but it does not support the claim that treatment erases stretch marks. A realistic goal is improvement in texture, visibility and surrounding skin quality.
Newer versus older stretch marks
Newer vascular stretch marks may respond differently from mature white marks. Older striae can still be treated, but expectations should be more conservative because the scar tissue is more established.
Treatment planning
The number of sessions depends on the age and extent of the marks, the treatment area, skin type and response. Results are cumulative and should be reviewed over months, not days.
Combination approaches
Some published literature explores microneedling or radiofrequency microneedling alongside regenerative approaches such as platelet-derived preparations. At Face for Soul, any combination treatment is selected after assessment rather than added automatically.
Why stretch-mark colour matters
Early striae rubra contain more vascular and inflammatory activity and look red or purple. Mature striae alba are paler and represent more established dermal change. Treatment studies often include different stages, which helps explain why outcomes vary and why one protocol cannot be guaranteed for every stretch mark.
How RF microneedling compares with CO2 laser
Recent systematic reviews comparing fractional microneedle radiofrequency with fractional CO2 laser have not shown a clear universal superiority for either treatment. Both can improve striae, while recovery and pigmentation risk may differ. In pigment-prone skin, avoiding a heavily ablative surface treatment can sometimes be an important consideration.
What good photography should show
Stretch marks can look dramatically different depending on lighting and angle. Before-and-after photography should therefore use the same position, lighting and distance. A close-up taken with side lighting after treatment should not be compared with a flatter, brighter baseline image.
Frequently asked questions
Can old white stretch marks still improve?
They can improve in texture and contrast, but mature striae are harder to change than early marks and complete removal is unrealistic.
Can Morpheus8 prevent stretch marks in pregnancy?
No. Treatment is not used during pregnancy for this purpose, and no procedure can guarantee prevention of striae.
Can treatment make stretch marks darker?
Temporary inflammation can trigger post-inflammatory pigmentation in susceptible skin, which is why skin type, sun exposure and treatment intensity matter.
How to decide whether treatment is worth it
The most useful decision point is not whether a device can produce any change, but whether the likely improvement is enough to justify the cost, discomfort and time involved. A patient with a small number of recent marks may value modest softening; someone expecting mature white striae to disappear completely is unlikely to be satisfied even if the texture objectively improves.
Assessment should also consider whether stretch marks are the only concern. If there is accompanying laxity, the treatment plan may target both. If the surrounding skin is firm and the marks are isolated, a more focal approach may be more proportionate.
What should be documented before treatment?
Good baseline photographs should record colour, width, length and distribution of the striae using consistent lighting and positioning. This makes later review more objective and reduces the temptation to judge improvement from memory.
References
- Sun X, Jia X, Huang L. Aesthetic Plast Surg. 2024;48(15):2915-2926. DOI: 10.1007/s00266-024-03954-x.
- Tang Z, et al. Lasers Med Sci. 2021;36(9):1823-1830. DOI: 10.1007/s10103-020-03203-y.
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This article provides general information and is not a substitute for an individual medical assessment.