Stretch marks are something nearly everyone experiences at some point—whether from growth spurts, pregnancy, or changes in weight. These lines, often appearing on the stomach, hips, thighs, or arms, are a completely normal part of skin’s evolution.
But for those looking to soften their appearance, collagen may play an important role in helping skin recover and renew.
What Causes Stretch Marks?
Stretch marks form when skin stretches faster than the underlying connective tissue can adapt. This creates small tears in the dermis, the middle layer of the skin, leading to visible streaks.
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At first, they may appear red, purple, or brown, depending on skin tone.
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Over time, they fade, but rarely disappear completely on their own.
The reason is simple: the skin’s scaffolding—proteins like collagen and elastin—has been disrupted. Without enough collagen, the skin struggles to fully repair itself after stretching.
Collagen’s Role in Skin Elasticity and Repair
Collagen is the main protein that gives skin its firmness, structure, and elasticity. Think of it as the framework beneath the surface, helping skin bounce back after stretching.
When collagen levels are strong, skin is more supple and resilient. But as we age—or after rapid body changes—natural collagen production slows down (often beginning around age 25). This makes stretch marks more visible and harder for the skin to repair.
Can Collagen Supplements Help with Stretch Marks?
Research on collagen supplementation has shown promising results for skin hydration, elasticity, and overall texture.
For stretch marks, collagen may help by:
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Improving skin elasticity to reduce the likelihood of new marks
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Smoothing texture around affected areas
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Balancing skin tone to help blend existing marks
Some clinical studies report that participants who took marine collagen peptides, particularly Type I collagen, experienced measurable improvements in skin elasticity and hydration.
Why Fish Collagen Is the Best Choice
Among different collagen sources, fish collagen stands out as gentle, potent, and highly bioavailable.
Ballstad Collagen, made from sustainably sourced fish, offers:
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Type I collagen, which makes up about 90% of the skin’s structure
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A clean, easily digestible formula
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A tasteless, odorless powder that blends seamlessly into coffee, smoothies, or juice
Because of its smaller peptide size, marine collagen is absorbed efficiently—helping your skin get the support it needs.
Realistic Expectations, Real Benefits
Collagen isn’t a miracle cure that makes stretch marks vanish overnight. But it supports the skin from within, helping it repair, hydrate, and renew itself more effectively.
Over time, this can mean softer-looking stretch marks, stronger skin structure, and an overall healthier glow.
Final Thoughts
Stretch marks tell stories of growth, change, and life itself. While they are natural and nothing to be ashamed of, collagen can be a gentle ally if you’d like to strengthen your skin and soften their appearance.