You can’t guarantee you’ll never get stretch marks, but you can significantly lower your risk by managing how fast your body changes size, keeping your skin well-nourished, and using the right topical products early. Genetics play a major role in who gets them, so some people will develop stretch marks no matter what they do. That said, the strategies below target the specific biological processes that cause them, giving your skin the best chance of holding up under stress.
Why Stretch Marks Form
Stretch marks are scars that form inside the dermis, the thick middle layer of your skin. When skin stretches faster than it can adapt, the collagen and elastin fibers that give skin its structure break apart. Your body repairs the damage with dense, flat scar tissue that looks different from the surrounding skin. New stretch marks (striae rubrae) appear red or purple because of increased blood flow; older ones (striae albae) fade to white or silver as the tissue thins out and blood supply decreases.
Two things accelerate this damage: rapid physical stretching and elevated cortisol. Cortisol, your body’s main stress hormone, directly weakens fibroblasts, the cells responsible for building collagen. This is why stretch marks are common during pregnancy (when cortisol rises naturally), puberty growth spurts, rapid weight gain, and in people using corticosteroid medications. The combination of skin being pulled taut while collagen production is suppressed creates the perfect conditions for tearing.
Genetics Set Your Baseline Risk
A genome-wide association study of nearly 34,000 people identified four genetic regions linked to stretch mark susceptibility. The strongest signal sits near the elastin gene, which controls how stretchy your skin is. Other associated genes involve proteins in elastic microfibrils, the tiny structural cables that help skin bounce back after stretching. Rare connective tissue conditions like Marfan syndrome, caused by mutations in fibrillin genes, are strongly associated with stretch marks, but the same family of genes influences risk in the general population too.
If your mother, father, or siblings have prominent stretch marks, your odds are higher regardless of what you do. That doesn’t mean prevention is pointless. It means you should be more aggressive with every other strategy on this list, especially controlling the speed of body changes.
Control the Rate of Change
The single most effective prevention strategy is avoiding rapid size changes. It’s not just how much weight you gain or lose; it’s how fast. Skin can adapt to gradual stretching by producing new collagen, but sudden expansion overwhelms that process. This applies to pregnancy weight, muscle gain from lifting, and general weight fluctuations.
During pregnancy, gaining weight steadily rather than in sudden jumps helps minimize stretch mark formation. For muscle building, progressive overload with moderate caloric surpluses is gentler on skin than aggressive bulking phases. If you’re losing weight, a rate of about one to two pounds per week gives skin time to contract rather than leaving it loose and scarred. Yo-yo dieting, with repeated cycles of rapid gain and loss, is particularly damaging because it subjects the same areas of skin to repeated stress.
What Actually Works on Your Skin
Not all creams and oils are created equal. A Cochrane review of topical products used during pregnancy found no statistically significant difference in stretch mark development between women who used popular preparations (including cocoa butter and olive oil) and women who used a placebo or nothing at all. The review examined five trials with 474 women and concluded there was no high-quality evidence supporting any of those products for prevention.
One ingredient with better evidence is Centella asiatica, a plant extract that stimulates fibroblast activity and promotes collagen production. Products containing this ingredient have shown a 60% reduction in the appearance of stretch marks in clinical testing. Look for it on ingredient labels as Centella asiatica extract, asiaticoside, or madecassoside. Creams like Trofolastin that contain this extract have been specifically studied for stretch mark prevention.
Keeping skin hydrated matters too, not because moisture prevents tearing on its own, but because well-hydrated skin is more pliable and resilient. A basic, fragrance-free moisturizer applied consistently to high-risk areas (abdomen, breasts, hips, thighs, upper arms) maintains the skin barrier. The key is consistency: daily application starting before skin begins to stretch visibly.
Feed Your Skin From the Inside
Collagen production depends on specific nutrients, and deficiencies can weaken your skin’s ability to handle stretching. Vitamin C is essential for collagen synthesis. Healthy plasma levels sit above 60 micromoles per liter, and research has found that people with certain skin conditions have levels as low as 6 to 31 micromoles per liter. You don’t need megadoses. Eating enough fruits and vegetables (citrus, bell peppers, strawberries, broccoli) to meet the recommended daily intake keeps your collagen machinery running.
Zinc supports wound healing and skin cell turnover. It’s found in meat, shellfish, legumes, nuts, and seeds. A combined supplement approach in one clinical study used vitamin C alongside zinc gluconate, tomato extract, and grape seed extract over 180 days and observed improvements in skin parameters in middle-aged men. While no single nutrient will prevent stretch marks on its own, chronic shortfalls in these building blocks make your skin more vulnerable.
Staying well-hydrated by drinking enough water also supports skin elasticity. Dehydrated skin is less supple and more prone to damage when stretched.
What to Do if Red Marks Appear
If you notice fresh red or purple stretch marks forming, act quickly. Early-stage marks still have active blood supply and are far more responsive to treatment than old white ones. Once stretch marks mature into pale, flat scars, they become much harder to improve.
Topical retinoids (vitamin A derivatives) are often recommended for early stretch marks, but the evidence is mixed. One study evaluating tretinoin gel on red stretch marks found that 80% of patients showed only minimal improvement (0 to 25% better) after a full year. Other treatments performed better in that same trial. Professional treatments like microneedling, fractional laser therapy, and radiofrequency devices tend to produce more noticeable results by stimulating new collagen production in the scarred area. These are best discussed with a dermatologist who can assess the stage of your marks.
Hyaluronic acid injections have shown promise for older white stretch marks. The mechanism goes beyond simple filling: hyaluronic acid enhances the production of extracellular matrix components, essentially encouraging the skin to rebuild some of the lost structure. In clinical studies, appearance improved after two to four treatment sessions spaced two weeks apart, with results visible as early as 15 days after the second session and sustained at six months.
Pregnancy-Specific Considerations
Pregnancy is one of the highest-risk periods for stretch marks, and it also limits your treatment options. Topical retinoids should be avoided entirely during pregnancy. Although skin absorption is low, case reports of birth defects consistent with retinoid exposure exist, and no large safety studies have been done. Salicylic acid, found in some exfoliating body products, has not been studied in pregnancy but absorbs in such small amounts through skin that it’s generally considered low-risk.
Your safest options during pregnancy are consistent moisturizing with Centella asiatica-based creams, steady weight gain within your provider’s recommended range, and adequate nutrition with emphasis on vitamin C and zinc. Starting a daily moisturizing routine in the first trimester, before the belly begins to stretch significantly, gives you the best window for prevention. Apply to the abdomen, breasts, hips, and lower back, all common sites for pregnancy-related marks.
Putting It All Together
Prevention works best as a combination approach. No single product or habit eliminates the risk, especially if your genetics are working against you. The highest-impact strategies, in order: control how fast your body changes size, use a topical product with Centella asiatica consistently on vulnerable areas, maintain adequate vitamin C and zinc intake, and stay hydrated. Skip the cocoa butter and olive oil if you’re relying on them as your primary defense. They feel nice but don’t outperform doing nothing in clinical trials.
If stretch marks do appear, early treatment during the red phase offers the best results. The longer you wait, the more the tissue remodels into flat, pale scar tissue that resists improvement. Consistency matters more than intensity, both for prevention and for treatment.