Stretch Marks: When They Form, When They Fade, and What Helps Texture vs Colour
By Simon MitchellQuick Summary: Stretch marks form when skin stretches faster than collagen can keep up, typically during pregnancy, growth spurts, or weight changes. Fresh red or purple marks often fade naturally over 6–24 months, while mature white marks are long-lasting and don't fully disappear, though they can become less noticeable over time. Topical treatments work best on newer marks and focus on supporting skin barrier function rather than erasing scars. This guide explains what actually works, realistic timelines, and how to match treatment to your mark's stage.
Why Stretch Marks Form (And Why Some People Get Them More Than Others)
Stretch marks - technically called striae, develop when your skin stretches rapidly and the deeper dermal layer tears. This happens when collagen and elastin fibres can't keep pace with growth, creating those familiar streaky lines.
Common triggers include pregnancy (especially in the third trimester), adolescent growth spurts, rapid weight gain or muscle building, and hormonal changes during puberty or perimenopause. Clinical sources commonly report that about 50–90% of pregnant women develop stretch marks, though estimates vary by population and measurement methods. They're not exclusive to pregnancy.
Your likelihood depends on genetics, skin type, hormone levels, and how quickly the stretching occurs. If your mum had them, you're more likely to as well. Corticosteroid use and conditions affecting collagen production (like Cushing's syndrome or Marfan syndrome) also increase risk.
Here's what matters: stretch marks are a normal response to rapid growth. They're not caused by "weak skin" or insufficient moisturising, despite what product marketing suggests.
The Two Stages: Red/Purple vs White/Silver (And Why Timing Matters)
Fresh Stretch Marks (Striae Rubra)
When stretch marks first form, they appear red, pink, or purple due to visible blood vessels in the torn dermis. This inflammatory phase can last from several months to over two years, with significant variation among individuals.
During this stage, marks may feel slightly raised and itchy. The skin is actively trying to repair itself, laying down new collagen—but in a disorganised pattern, which is why they remain visible even after healing.
Mature Stretch Marks (Striae Alba)
Over time, inflammation subsides, blood vessels fade, and marks turn white, silver, or light pink. The skin appears thinner and slightly depressed because the dermal layer hasn't fully regenerated.
Mature marks are long-lasting changes in skin structure that don't fully disappear, though they can become much less noticeable over time with targeted support.
Why this matters for treatment: Fresh marks may respond better to topical interventions because active repair processes are underway. Mature marks require different expectations—you're working to improve texture and reflectivity, not erase them.
What Actually Helps (And What Doesn't)
During the Red/Purple Phase
Some studies and dermatology reviews suggest that silicone-based products may help maintain hydration and improve the appearance of stretch marks in some people, though evidence specifically for striae is more limited than for other types of scars. Results vary significantly depending on the severity of the mark and the individual's healing response.
Realistic timeline: 8–12 weeks of twice-daily application may improve texture and colour intensity in some cases, though outcomes are unpredictable. If it helps, the change is usually modest - most noticeable in hydration, feel, and surface smoothness.
Other options for newer marks:
- Tretinoin (prescription only): May improve collagen remodelling in striae rubra. Prescription retinoids should only be used under medical guidance and are not suitable during pregnancy or breastfeeding. Consult your GP or dermatologist.
- Centella asiatica extract: Some research suggests potential support for collagen synthesis, though evidence is limited
- Hyaluronic acid: Helps with hydration and may support skin elasticity, but won't reverse dermal tearing
For Mature White Marks
Topical treatments have modest effects on mature stretch marks because the structural damage is long-lasting. However, you can improve how they look and feel.
Texture vs Colour: Setting Realistic Expectations
Understanding what you're actually trying to improve matters for choosing treatment and measuring success.
Colour Changes
Fresh marks often fade naturally over 6–24 months as inflammation resolves, though this timeline varies widely. You're not dramatically accelerating this with topicals—you're supporting the process your skin is already doing.
Mature stretch marks can be hypopigmented and may not repigment fully, which is why "fading" claims often really mean improving texture and contrast rather than actual colour change.
Texture Improvements
Both fresh and mature marks can become softer and less noticeable with consistent barrier support. Silicone products work by hydrating the upper skin layers, which can reduce the "shiny" appearance and make marks feel smoother.
Professional treatments like microneedling or laser target texture by deliberately creating controlled micro-injuries that trigger more organised collagen production. Results are gradual and never achieve complete restoration.
Bottom line: If your marks are white and several years old, aim for "less noticeable" not "gone." If they're fresh and red, consistent treatment may influence how they mature—but genetics play a major role.
Comparison: Topical vs Professional Treatment Options
Silicone Gel
Best for: Fresh and mature marks where hydration support may help
Realistic outcome: Improved texture and feel; visual improvement varies
Timeline: 8–12 weeks minimum
Limitations: Won't erase mature marks; evidence for striae is mixed
Tretinoin Cream (Prescription)
Best for: Fresh red/purple marks only
Realistic outcome: May improve collagen organisation in some cases
Timeline: 3–6 months
Limitations: Doctor-only; not for pregnancy/breastfeeding; results vary
Microneedling (Professional)
Best for: Mature marks with texture issues
Realistic outcome: Stimulates collagen, may reduce depth
Timeline: 3–6 sessions over months
Limitations: Requires professional; moderate pain; costly
Fractional Laser (Professional)
Best for: Stubborn mature marks
Realistic outcome: Texture improvement via controlled injury
Timeline: 3–5 sessions over 6+ months
Limitations: Expensive; downtime; not suitable for all skin types
Self-Tanning (Cosmetic)
Best for: Mature marks (appearance only)
Realistic outcome: Reduces contrast temporarily
Timeline: Immediate
Limitations: Doesn't change the actual mark structure
A Simple Routine for Stretch Mark Support
If you're using topical products to help prevent stretch marks, consistency matters more than complexity.
Morning
- Gently cleanse the area if needed
- Apply a hydrating moisturiser to support barrier function
- Use SPF if the area is sun-exposed (sun damage can increase contrast)
Evening
- Cleanse gently
- Apply your chosen barrier-support product (like silicone gel) to clean, dry skin
- Allow to absorb fully before dressing
Key principles
- Stick to 1–2 targeted products maximum—more isn't better
- Commit to 8–12 weeks minimum before assessing results
- Always patch-test new products on a small area first
- Be patient—visible changes take time and may be modest
A note on self-acceptance: It's completely okay to want improvement, and it's also okay to do nothing. Stretch marks are normal, and how you feel about yours is entirely valid.
Who Silicone-Based Treatment Is For (And Who It's Not For)
You might benefit if:
- Your stretch marks are relatively recent (within 2 years)
- You want to support skin barrier function in affected areas
- You're looking for texture improvement, not complete removal
- You're willing to apply product twice daily for 8–12 weeks minimum
- You have realistic expectations about a modest cosmetic improvement
This approach may not suit you if:
- You're expecting dramatic colour change in mature white marks
- You're unwilling to commit to consistent application
- You have very deep, wide marks (may need professional intervention)
- You want faster or more predictable results (consider professional treatments)
- You're allergic to silicone-based products
Genova Silicone Scar Gel for Stretch Mark Support
Genova Silicone Scar Gel is designed to support skin barrier function in scarred areas, including stretch marks. Applied twice daily for 8–12 weeks, it may help:
- Improve skin hydration and texture
- Reduce the visual contrast between the mark and surrounding skin
- Soften the feel of affected areas
Learn more about Genova Silicone Scar Gel
What it won't do: Erase the marks, restore original skin thickness, or work equally on all marks. Individual response varies based on mark age, depth, and your skin's healing capacity. Evidence for silicone specifically on stretch marks is mixed, and results are unpredictable.
What Doesn't Work (Despite Marketing Claims)
"Stretch mark removal creams": No topical product removes stretch marks. They may improve hydration and texture - that's it.
Cocoa butter during pregnancy: Popular but not supported by evidence. The Cochrane Database of Systematic Reviews found that no topical preparation has been shown to be effective for preventing stretch marks during pregnancy.
Bio-Oil or vitamin E oil: May feel nice and hydrate skin, but won't prevent stretch marks or significantly alter their appearance beyond basic moisturisation.
"Miracle" ingredients: If something sounds too good to be true, it is. Collagen creams don't deliver collagen to your dermis - the molecules are too large.
The Role of Prevention (And Why It's Limited)
You cannot prevent stretch marks if you're genetically predisposed, but you can support skin health during rapid growth phases:
- Keep skin well-hydrated (but don't expect this to prevent tearing)
- Maintain gradual weight changes where possible
- Support overall collagen health with adequate vitamin C and protein
- Avoid smoking, which degrades collagen
Be realistic: According to the Cochrane Database of Systematic Reviews, no topical preparation has been shown to be effective at preventing stretch marks, even with perfect application.
FAQs
Can stretch marks completely disappear?
No. Fresh red marks often fade to white over time but remain visible. Mature white marks are long-lasting changes to skin structure, though they can become much less conspicuous with treatment and time.
How long does silicone gel take to work on stretch marks?
Some users notice texture improvements after 8–12 weeks of twice-daily application, but results vary widely. Evidence for silicone specifically on stretch marks is less robust than for other scar types.
Do stretch marks get worse with age?
They don't worsen structurally, but surrounding skin ages and loses elasticity, which can make older marks more noticeable. Sun damage can also increase contrast.
Should I treat red marks differently from white ones?
Yes. Red marks are actively healing and may respond better to consistent topical support. White marks require different expectations - focus on texture and hydration rather than colour reversal.
Are professional treatments worth it for mature stretch marks?
Depends on your goals and budget. Microneedling and fractional laser treatments can improve skin texture, but won't restore the skin to its original state. Consider professional options if you've had no success with topicals after 3–6 months.
The Honest Takeaway
Stretch marks are a normal part of rapid growth - whether from pregnancy, adolescence, or body changes. Fresh marks often fade naturally; topical support may help them mature more favourably in some cases. Mature marks are long-lasting but can look and feel better with consistent barrier support.
If you're in the red/purple phase, consistent application of evidence-based topicals for 8–12 weeks may influence texture and tone, though results are unpredictable. If your marks are already white, focus on realistic improvements: softer texture, better hydration, reduced visual contrast.
No cream will erase stretch marks. But the right approach, applied patiently with realistic expectations, can make a noticeable difference in how they look and feel for some people.
Always patch-test new products and consult a dermatologist if you're considering professional treatments or have concerns about mark changes.
Sources
- The Cochrane Database of Systematic Reviews, "Interventions for preventing stretch marks in pregnancy" (2012)
- DermNet NZ, "Striae (Stretch Marks)" clinical reference resource
Disclaimer: Results vary between individuals. Topical products support skin barrier function but cannot restore dermal structure. For significant concerns, consult a dermatologist.
