Stress marks, commonly called stretch marks, are a form of scarring in the deeper layer of your skin. They happen when the skin stretches faster than its connective tissue can keep up, causing collagen and elastin fibers to tear. Getting rid of them completely is difficult, but newer marks respond well to treatment, and even older ones can be significantly improved with the right approach.
The term “stress marks” is fitting for more than one reason. Rapid physical changes like growth spurts, pregnancy, or weight gain cause mechanical stress on the skin. But psychological stress also plays a role: cortisol, the body’s primary stress hormone, directly suppresses collagen production in skin cells in a dose-dependent way, making your skin less resilient and more prone to tearing when stretched.
Why Timing Matters More Than Anything
Stretch marks go through two distinct stages, and knowing which stage yours are in determines what will actually work. New marks appear red, purple, or dark brown depending on your skin tone. This early stage, called striae rubrae, means the marks are still inflamed and have active blood flow. They typically look this way for several months up to about a year.
Over time, the inflammation settles and marks fade into white or silvery lines called striae albae. At this point, the skin in those areas has become thinner, lost its normal texture, and the collagen has reorganized into flat, scar-like bundles. The blood vessels have largely disappeared. This is why older marks are so much harder to treat: you’re working with mature scar tissue rather than an active wound your body is still remodeling.
If your marks are still red or purple, treat them now. The response rate for early-stage marks is dramatically better across every treatment type.
Topical Treatments: What Works and What Doesn’t
Retinoid creams (prescription vitamin A derivatives) are the most studied topical option for stretch marks, but the results are underwhelming. In a clinical study that followed patients for a full year, 80% of those using tretinoin gel showed only minimal improvement, defined as less than 25% change. Only 10% achieved a moderate result. Retinoids can help slightly with texture and may speed up the fading of newer marks, but they’re not the transformative fix many people hope for.
Cocoa butter is one of the most popular home remedies, but a double-blind, placebo-controlled trial of 175 women found no difference in stretch mark development between those who applied cocoa butter lotion daily and those who used a plain placebo lotion. The rate of marks was nearly identical: 45% in the cocoa butter group versus 49% in the placebo group. Other popular oils like almond oil and shea butter have similarly thin evidence behind them. They’re good moisturizers, but moisturizing intact skin and repairing torn dermis are fundamentally different things.
If you want a topical that actually supports skin repair, look for products containing vitamin C. It serves as a necessary building block for collagen production, both stabilizing collagen molecules and stimulating new collagen at the genetic level. One intervention study found that a supplement combining vitamin C with zinc and other compounds increased collagen levels by 43% to 57% and elastin by 20% to 31% over six months. Applied topically, vitamin C penetrates the skin and accumulates in cells, though the relationship between how much you apply and how much your skin absorbs isn’t fully understood yet.
In-Office Procedures With the Best Evidence
For visible results, professional treatments outperform anything you can do at home. The two with the strongest clinical support are fractional CO2 laser and microneedling.
A randomized clinical trial that directly compared the two found both treatments significantly reduced the width of stretch marks, with no statistically significant difference between them. Patient satisfaction scores also improved equally in both groups. Each treatment was performed four times at monthly intervals, with continued improvement observed during the 10-month follow-up period. This is a key detail: collagen remodeling continues for months after your last session, so the marks keep improving well after treatment ends.
Most people notice visible changes in texture and color after two to three sessions. The most significant improvement tends to appear between months three and six as the new collagen matures. Sessions are typically spaced four to six weeks apart because each round builds on the healing triggered by the previous one.
For older white marks specifically, fractional CO2 laser has proven significantly more effective than topical treatments like tretinoin cream or glycolic acid. It’s considered the first-line option for mature stretch marks. Pulsed dye lasers, which work well on red marks by targeting blood vessels, show no beneficial effect on white marks since those vessels are already gone.
Chemical Peels
Glycolic acid peels are sometimes used to improve skin texture over stretch marks, particularly at professional concentrations between 35% and 70%. These peels remove outer skin layers and stimulate some collagen turnover. They’re available at varying depths, from very superficial (30% to 50% applied briefly) to medium depth (70% left on longer). While peels can improve surface texture and help with mild scarring, the evidence for them as a standalone stretch mark treatment is weaker than for laser or microneedling. They’re more commonly used as a complement to other procedures.
Supporting Your Skin From the Inside
Your skin’s ability to repair itself depends partly on having the raw materials for collagen synthesis. Vitamin C is essential here because without it, the enzymes that build and stabilize collagen simply can’t function. Studies on skin cells show that collagen production drops significantly when vitamin C is absent, with both the total amount and the structural quality of collagen declining. Zinc plays a supporting role in the same process.
Getting enough of these nutrients through diet (citrus fruits, bell peppers, berries for vitamin C; meat, shellfish, legumes for zinc) provides a baseline of support. Supplementation at very high doses can increase vitamin C concentrations in skin cells, but the optimal amount for skin repair specifically hasn’t been established. A balanced intake matters more than megadosing.
Keeping cortisol levels in check also protects your skin’s collagen. Chronic stress, sleep deprivation, and prolonged use of corticosteroid medications all elevate cortisol, which directly reduces how much collagen your skin cells produce. The effect mimics what happens to skin during aging: thinning, loss of elasticity, and slower healing. Managing stress through sleep, exercise, or other means won’t erase existing marks, but it helps prevent new ones and gives your skin a better environment to heal in.
Realistic Expectations for Each Stage
Red or purple marks caught early can improve substantially. A combination of professional treatments and good nutrition gives you the best shot at making them barely noticeable. Some early marks also fade significantly on their own over 12 to 18 months, though they rarely disappear completely without intervention.
White or silver marks are permanent scars. They can be made less visible, narrower, and smoother with fractional laser or microneedling, but they won’t return to the appearance of unmarked skin. Multiple treatment sessions are the norm, not the exception. If anyone promises complete removal of mature stretch marks, that’s a red flag.
The most practical approach combines professional treatments for the marks themselves with daily habits that support collagen production: adequate vitamin C and zinc intake, consistent hydration, and stress management to keep cortisol from undermining your skin’s repair processes.