Your stretch marks are white because they’ve fully matured. All stretch marks start out red or purple, then gradually fade to a pale, silvery-white color over several months to a year. That white color signals that the initial inflammation has settled and the marks have entered their permanent, scarred phase.
How Stretch Marks Change Color Over Time
When skin stretches faster than it can adapt, the deeper layer (the dermis) tears. Your body responds the same way it responds to any injury: with inflammation. Blood flow increases to the area, which is why fresh stretch marks look red, pink, or purple depending on your skin tone. Dermatologists call this early stage “striae rubra.”
Over roughly 6 to 12 months, that inflammation fades. Blood vessels in the area shrink back, and the marks lose their color. What’s left behind is a pale, flat scar called “striae alba.” The white appearance comes from two things happening at once: the skin over the mark thins out and loses its normal ridged texture, and the cells that produce your skin’s pigment (melanocytes) become less active in the scarred area. Without normal pigment production, the stretch mark can’t match the surrounding skin, so it looks lighter, sometimes almost translucent.
What’s Happening Beneath the Surface
The color change is only part of the story. Structurally, white stretch marks are quite different from the skin around them. The collagen fibers in the dermis have ruptured, and the elastic fibers that normally let skin snap back into shape are significantly reduced compared to normal skin. Research measuring dermal density with ultrasound confirms that both red and white stretch marks have lower elasticity and dermal density than healthy skin. Those properties don’t recover on their own once the mark matures.
The surface layer of skin over a white stretch mark also flattens out. The tiny finger-like projections that normally anchor the outer skin to the layer beneath it (called rete ridges) become blunted or disappear entirely. Skin appendages like hair follicles and sweat glands are absent within the mark. In short, white stretch marks are a form of atrophic scar, meaning the tissue has thinned and lost volume rather than built up excess scar tissue.
Why White Stretch Marks Are Harder to Treat
Red stretch marks are easier to improve because they’re still in an active phase. Blood flow is high, cells are still remodeling, and the tissue is more responsive to topical treatments and procedures. Once stretch marks turn white, the window for easy intervention narrows considerably. The scar tissue has stabilized, and the collagen disruption is essentially locked in place. Topical creams like retinoids or hyaluronic acid, which can make a noticeable difference on red marks, have much less impact on mature white ones.
That doesn’t mean nothing works, but the options shift toward in-office procedures that physically stimulate the skin to rebuild collagen from within.
Treatments That Can Improve White Marks
Fractional laser therapy is one of the most studied treatments for white stretch marks. In one clinical study, fractional CO2 laser reduced the average width of stretch marks from about 7 mm to 3.25 mm and shortened their length from 13.1 cm to 9.3 cm, measured one month after the final session. Eighty percent of patients in that study were satisfied with their results, and independent photo evaluations found that the same proportion achieved more than 50% visible improvement. Multiple sessions are typically needed, spaced weeks apart.
Interestingly, one study found that fractional laser treatment actually produced better outcomes on white stretch marks than red ones, likely because the mature scar tissue responds more predictably to the controlled micro-injuries the laser creates.
Microneedling is another option with growing evidence behind it. The technique uses tiny needles to puncture the skin at a controlled depth, triggering the body’s wound-healing response and stimulating new collagen production. Comparative research has found microneedling more effective than microdermabrasion for stretch marks, because the needles penetrate deep enough to reach the damaged dermis rather than only buffing the skin’s surface. Multiple sessions over several months are standard.
For marks where the main concern is the color mismatch rather than texture, excimer laser treatments can help by stimulating melanocyte activity within the stretch mark. This increases pigment production so the mark blends better with surrounding skin. However, excimer laser doesn’t improve the underlying dermal thinning or texture, so it works best when combined with other approaches. Injectable fillers are also being used for stretch marks where volume loss is the primary issue, restoring fullness to the atrophied dermis and encouraging longer-term collagen production.
What Won’t Change
No current treatment fully erases white stretch marks. The structural damage to collagen and elastic fibers in the dermis is permanent to some degree. Treatments can significantly improve the width, depth, texture, and color contrast of stretch marks, but the skin in those areas will never return to its original, unmarked state. Results also vary widely depending on your skin type, the age and location of the marks, and how your body responds to collagen-stimulating treatments.
The white color itself is actually a sign that your body has finished healing the area as best it can. Many people find that over the years, the marks continue to flatten and soften on their own, becoming less noticeable even without treatment. They may never match your surrounding skin tone perfectly, but in most cases they become subtle enough that they’re only visible up close or in certain lighting.