Stretch marks (striae) are one of the more challenging dermatology concerns to treat because they affect deeper skin structure than surface pigmentation. Pico lasers are increasingly used as part of stretch mark treatment protocols — here’s what’s realistic to expect, what works alongside pico, and how to think about results.
The short answer
Pico lasers (especially fractional pico with handpieces like PicoSure Focus Lens Array or PicoWay Resolve) can improve the appearance of stretch marks by:
- Reducing redness in fresh stretch marks (striae rubra)
- Improving texture and stimulating new collagen
- Reducing the visible contrast of mature stretch marks (striae alba)
Expect modest improvement — 30-60% in appearance — rather than complete clearance. Pico is typically combined with other modalities for best results.
Why stretch marks are hard to treat
Stretch marks form when skin stretches faster than collagen can grow, causing tears in the dermis layer. Once formed, they:
- Affect the deep dermis, below where most surface treatments reach
- Lack normal collagen and elastin architecture
- Often appear as either reddened (fresh) or white (mature) lines
- Are particularly stubborn on the abdomen, thighs, and breasts
No single treatment fully reverses stretch marks. Treatment focuses on improving appearance.
Stretch mark types and treatment response
Striae rubra (red/pink, fresh)
Newer stretch marks, often pink to red or purple. These respond better to laser treatment because there’s still active vascular and inflammatory components to address.
Typical improvement: 50-70% with pico fractional + supportive treatments.
Striae alba (white, mature)
Older stretch marks, faded to white or silvery. These are harder to treat because the damage is structural and pigmentation is largely absent.
Typical improvement: 30-50% with pico fractional + supportive treatments.
How pico fractional works on stretch marks
Pico fractional lasers (with the Focus Lens Array or Resolve handpiece) create micro-zones of disruption in the dermal layer. The skin’s healing response over weeks to months produces:
- New collagen and elastin in the treated zones
- Some improvement in skin texture matching
- Reduced contrast between stretch mark and surrounding skin
Comparison: pico vs alternatives
| Pico fractional | RF microneedling | Microneedling alone | Topical retinoid (rx) | |
|---|---|---|---|---|
| Best for | Fresh + mature | Mature, deep | Fresh, shallow | Very fresh |
| Sessions typical | 4-6 | 3-4 | 6-8 | Daily for months |
| Cost per session | $400-$1,200 | $800-$1,500 | $200-$500 | $100-$200/month |
| Downtime | 1-3 days | 3-7 days | 1-2 days | Skin irritation possible |
| Effectiveness on mature | Moderate | Higher | Limited | Limited |
Realistic results timeline
Treating stretch marks is slow. Don’t expect dramatic immediate change:
- Sessions 1-2: mild redness post-treatment, no visible improvement yet
- Session 3-4: subtle texture improvement, fresh marks starting to fade in color
- Sessions 5-6: more noticeable change, particularly in texture and contrast
- 3-6 months after final session: continued improvement as collagen remodeling completes
Combination approach (typical best protocol)
Most dermatologists use multi-modal treatment for stretch marks:
- Pico fractional for collagen stimulation and pigment improvement
- RF microneedling alternated with pico for deeper dermal remodeling
- Topical retinoid (tretinoin 0.025-0.1%) daily between sessions
- Sun protection SPF 50+ during entire course
- Hydration and lotion (centella asiatica, hyaluronic acid lotions help)
What pico won’t do
Don’t expect:
- Complete disappearance of stretch marks
- Major improvement in stretched abdominal skin elasticity (need other tools)
- Improvement that lasts only days (results take weeks/months to appear and stay)
- Fast results on mature white stretch marks
Body locations and treatment considerations
Abdominal stretch marks (post-pregnancy)
Common, often combined with some skin laxity. Pico fractional + RF microneedling combo often works well. Allow 3-6 sessions and 6+ months for results.
Thigh stretch marks
Same approach. Sometimes responds slightly better than abdomen due to less ongoing skin movement.
Breast stretch marks
Treatable but sensitive area. Lower fluence settings typical. 4-5 sessions often produces meaningful improvement.
Buttock and back stretch marks
Often the deepest and hardest to treat. Combination approach recommended; expect 6-8 sessions for noticeable change.
Cost expectations
For typical 4-6 session protocol on moderate stretch mark area:
- Pico fractional only: $2,000-$5,000 total
- Combined pico + RF microneedling: $3,000-$7,000 total
- Plus topical retinoid: $50-$200/month for prescription
Who’s a good candidate
- Fresh red/pink stretch marks (especially good candidates)
- Mature white stretch marks with realistic expectations
- Patient willing to commit to 4-6+ sessions
- Patient willing to use topical retinoids daily
- No keloid scarring history
Who shouldn’t pursue laser treatment
- Active pregnancy or breastfeeding
- Currently on Accutane (wait 6-12 months)
- Active skin infection in the area
- Patients with major skin laxity (need different approach)
- Patients expecting complete clearance
Bottom line
Pico fractional can meaningfully improve stretch mark appearance, especially when combined with other modalities like RF microneedling and topical retinoids. Don’t expect miracles — but expect noticeable improvement over months of treatment. Fresh stretch marks respond better than mature ones.
Read our pico anti-aging guide · Find providers offering pico fractional treatment.