If you're working hard in the gym and seeing results in your strength and muscle tone—but also noticing new stretch marks—you’re not alone. Rapid physical changes can take a toll on your skin. But the good news? With a few simple strategies (and the right skincare routine), you can support your skin through your fitness journey.
What Causes Stretch Marks from Working Out?
Stretch marks, or striae distensae, happen when the skin stretches faster than it can adapt. During workouts—especially resistance training—muscle growth increases skin tension, and that can lead to microtears in the dermis. Over time, these tears heal into visible lines that may be red, purple, or silvery white. (Baumann, 2008).
According to recent research, elevated cortisol levels during intense training also weaken collagen and elastin—the building blocks of resilient skin—making it more vulnerable to damage (Hatta et al., 2022).
High-risk areas:
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Shoulders and upper arms
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Thighs and glutes
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Chest and abdomen
Who’s Most at Risk?
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Beginners building muscle quickly
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Bodybuilders and powerlifters
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Teens going through puberty
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Anyone with genetically sensitive or collagen-poor skin
Your skin is strong—but even strong skin has its limits.
How to Prevent Stretch Marks During Workouts
1. Train Smart, Grow Gradually
Avoid "bulking up fast." Progressive resistance training gives your skin time to adjust to muscle expansion.
2. Hydrate—Inside and Out
Drink plenty of water and use hydrating skincare daily. Dehydrated skin is less elastic and more likely to tear.
3. Support Collagen With Peptides and Botanicals
This is where Rejuvaskin Stretch Mark Cream shines. Packed with:
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Peptides – support collagen regeneration
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Cocoa butter & shea butter – deeply moisturize
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Centella Asiatica – improves elasticity and skin repair
Use it after showering and before bed to help prevent and reduce visible stretch marks. One of the best ways to support your skin’s barrier is through targeted skincare. Ingredients like peptides, cocoa butter, and Centella asiatica can help boost elasticity and collagen regeneration (Cantelli et al., 2021).
4. Rest & Recover
Rest days are important—not just for muscles, but for skin recovery, too. Lowering cortisol through proper sleep, nutrition, and stress reduction also protects your skin’s collagen network.
When Stretch Marks Are Already There
Even with your best efforts, stretch marks can still form. The good news? Treatment options like microneedling have been shown to help reduce the appearance of stretch marks by stimulating collagen remodeling (Määttä, 2022). Combining these with consistent skincare can lead to real improvement over time.
Why Rejuvaskin is the Smart Choice for Active Lifestyles
Unlike thick, greasy products or harsh treatments, Rejuvaskin Stretch Mark Cream is dermatologist-recommended, fast-absorbing, and formulated for sensitive skin. Whether you're starting a new program or hitting a personal best, our formula is a gentle, proactive way to support your skin's strength—just like you support your muscles.
Fitness + Skincare = Stronger Results
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Tip |
Why It Matters |
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Build muscle gradually |
Prevents overstretching the skin |
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Stay hydrated |
Improves elasticity and resilience |
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Use Rejuvaskin daily |
Nourishes and strengthens the skin |
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Manage stress |
Lowers cortisol to protect collagen |
Works Cited
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Hatta, R. D., Putra, I. B., & Jusuf, N. K. (2022). The Correlation Between Serum Cortisol Levels and Stretch Marks in Gymnastic Male. link
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Baumann, L. S. (2008). Stretch Marks. link
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Määttä, J. (2022). Stretch Mark Treatment by Tattooing and Microneedling. link
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Cantelli, M., et al. (2021). Topical oil formulation for stretch marks and xerosis. link