Laser Treatment for Stretch Marks

Laser can soften the colour and texture of stretch marks, but it cannot erase them. Newer, reddish marks usually respond more noticeably than older, white or silvery ones, and most people need a series of sessions before the change becomes clear.

Why stretch marks form

Stretch marks, or striae, are a type of scar in the deeper layer of the skin, the dermis. They appear when skin is stretched faster than its collagen and elastic fibres can adapt, or when hormones weaken those fibres. The fibres break and reorganise in thin parallel lines.

Common triggers include pregnancy, growth spurts in adolescence, rapid weight gain or loss, and muscle building. Hormonal factors matter too. Long-term use of corticosteroid creams or tablets and some medical conditions, such as Cushing's syndrome, can cause wide or unusually widespread marks. If stretch marks appear suddenly without an obvious reason, especially if they are broad and purple, it is worth seeing your family doctor.

Genetics plays a large part. Some people develop marks with modest stretching while others never do, so having them says nothing about how well you have looked after your skin.

Red versus white: the two stages

Stretch marks change over time, and that change shapes what treatment can achieve.

• Early marks (striae rubrae) are pink, red or purple and sometimes slightly raised or itchy. There is still active inflammation and increased blood flow in the area.
• Mature marks (striae albae) are white or silvery, flat or slightly sunken, with a finely wrinkled surface. The blood vessels have settled, and the skin in the mark has less pigment and less collagen.

Red marks often fade somewhat on their own over months to a few years. Treating them during this stage may help reduce redness sooner and may improve how they settle. White marks are more stable and harder to change, although texture can still improve.

How laser works on stretch marks

The Fotona system offers two wavelengths that can be used in different ways. The Er:YAG wavelength (2940 nm) can be used in a fractional pattern, creating tiny controlled zones of injury in the surface layers. As these heal, the skin builds new collagen, which can make the texture of a mark smoother and less shiny. The Nd:YAG wavelength (1064 nm) penetrates deeper and can deliver gentle heat to the dermis and to the small vessels that give early marks their colour.

The goal in each session is controlled stimulation rather than aggressive treatment. Repeated moderate sessions allow the skin to remodel gradually with less risk of side effects. For a broader look at these approaches, see fractional vs full-field resurfacing.

What improvement is realistic

Research on laser for stretch marks shows improvement in many people, but the size of the change varies widely, and studies are often small. A fair way to think of it: the goal is marks that are less noticeable, flatter in colour and closer in texture to the surrounding skin, not marks that disappear.

Factors that tend to influence the result include:

• How new the marks are, with red marks generally responding better.
• How wide and deep they are.
• Your skin tone, since darker skin needs more cautious settings.
• Whether the cause, such as weight change or steroid use, is still ongoing.

Some people are content with the appearance of their marks after learning what is realistic, and decide not to treat. That is a perfectly reasonable choice. Stretch marks are a normal part of many bodies and are not a medical problem.

A series of treatments

Most treatment plans involve several sessions, commonly around three to six, spaced roughly four to six weeks apart. Collagen remodelling continues for months after each session, so the final appearance is usually judged several months after the last one.

After a fractional session, treated skin is typically red and may feel like a mild sunburn for a few days. Fine roughness or light flaking can follow as the surface renews. Nd:YAG sessions on their own tend to cause less visible recovery. Your provider will explain the expected course for the settings chosen for your skin.

Laser may be combined with other approaches, such as microneedling or topical retinoids for early marks, where appropriate. Retinoids should not be used in pregnancy.

Who should wait or avoid treatment

Laser for stretch marks is elective, so timing matters. It is usually better to wait if you:

• Are pregnant. Treatment is postponed until after pregnancy, and many providers also prefer to wait until breastfeeding is finished.
• Are still gaining or losing weight quickly, since new marks may form.
• Have a tan, recent sun exposure or self-tanner on the area.
• Have an active skin infection, rash or open wound in the treatment area.
• Have a history of keloid or raised scarring, or take medicines that increase light sensitivity.
• Have used isotretinoin recently; timing is discussed individually. Our article on isotretinoin and laser explains why.

Risks and side effects

Common, temporary effects include redness, swelling, warmth and a sunburn-like feeling. Less common risks include blistering, temporary darkening of the skin (post-inflammatory hyperpigmentation), lightening of the skin, and, rarely, infection or scarring. The risk of pigment change is higher in darker skin tones and in skin exposed to the sun around the time of treatment, which is why skin typing, test spots and careful settings matter.

Results vary from person to person, and some marks show little change. A clear conversation at the start helps make sure the plan matches what laser can realistically offer.

Frequently asked questions

Can creams prevent or remove stretch marks?

Moisturisers can ease itch and dryness, and some evidence supports certain topical ingredients for early marks, but no cream reliably prevents or removes them. Prescription retinoids may help early red marks in non-pregnant adults.

Is it too late to treat marks I have had for years?

Not necessarily. Older white marks are harder to change, but texture and shine can sometimes improve. Expectations simply need to be more modest.

Can stretch marks on the stomach after pregnancy be treated?

Yes, once you are ready. It is sensible to wait until your body has settled after pregnancy and to have any concern about abdominal muscle separation checked first.

If you are curious whether your stretch marks are likely to respond, a consultation at HealthPark Medical Aesthetics can look at their stage, your skin type and your goals, and help you decide whether treatment, skincare or simply leaving them alone makes the most sense for you.