Stretch marks are one of the most common reasons patients book fractional CO₂ at Elyzea — and one of the indications most prone to oversold expectations. Stretch marks can be improved meaningfully with CO₂ laser, but they cannot be erased entirely. This guide walks through what to realistically expect, what the cost looks like at our Miraflores clinic, and how a sequenced multi-treatment plan delivers the best outcome.
What stretch marks actually are
Stretch marks (striae distensae) form when the skin's middle layer (the dermis) tears under rapid stretching — pregnancy, growth spurts, weight changes, bodybuilding. The tears heal as scars with disrupted collagen and elastin networks. Initially, stretch marks are red or purple (striae rubra) — these are recently-formed and respond best to treatment. Over time they fade to white or silver (striae alba) — these are mature and harder to improve.
The texture change (the indented, valley-like surface) is permanent without intervention. The color change can shift on its own over years but rarely fully resolves.
What CO₂ laser does for stretch marks
Fractional CO₂ delivers two simultaneous effects on stretch marks:
- Texture remodeling: the laser creates microcolumns of controlled wound; collagen rebuilds in the healing process and partially restores the dermal network
- Color normalization: the resurfacing layer creates more even pigmentation across the treated area, reducing the visible contrast between stretch mark and surrounding skin
Both effects are partial, and how much each person improves depends on their skin:
- Recent red/purple stretch marks (striae rubra): the best response, in both color and texture
- Older white stretch marks (striae alba): a more modest, mostly textural improvement
- Very deep, severe striae: textural improvement is real but the marks remain visible
2026 cost at Elyzea Miraflores
| Service | PEN | USD (~) | Duration |
|---|---|---|---|
| CO₂ — stretch marks | S/1,000 | ~US$286 | 1 hour |
Reference price: the final cost depends on the size and number of zones treated. Each session is billed at that price; how many you need and how often is defined by Dra. Geldres.
Recovery for body CO₂
Body CO₂ recovery differs slightly from facial CO₂:
- Day 0-3: redness, swelling, oozing — same as facial
- Day 4-7: peeling and crusting; clothing should be soft and loose
- Day 7-14: pink skin; gentle activity allowed
- Week 2-4: pinkness fades; sun avoidance strict
- Months 2-6: collagen build phase; gradual improvement visible
Body skin heals slightly slower than facial skin, especially on the abdomen and thighs. Plan for 2 weeks of soft-clothing recovery after a body CO₂ session.
Sun avoidance is critical for body CO₂
Body skin pigmentation is more sensitive to post-inflammatory hyperpigmentation than facial skin in many patients — and Lima beach trips can derail the entire result. After body CO₂:
- No beach exposure for 6 months minimum
- Mineral SPF 50+ on the treated area daily, even under clothing
- UPF 50+ swimwear and clothing if any sun exposure is unavoidable
- Avoid hot tubs and saunas for 2 months
The realistic timeline for stretch mark improvement
Clear expectations matter more than anything else. Realistic milestones:
- After each session: first improvement visible at week 4-6, peaking around month 3
- Further sessions: each one adds to the textural change
- How many, and how often: Dra. Geldres defines both; how much the marks improve depends on each person's skin, so no exact result is promised
A patient flying to Lima for one CO₂ session and expecting dramatic stretch mark elimination will be disappointed. A patient committed to the full protocol Dra. Geldres sets, with proper aftercare, can see substantial change.
Combination treatments for stretch marks
CO₂ pairs well with other modalities for stretch mark improvement:
- + Picosecond laser: picosecond addresses the residual color change at lower cost (S/300 vs S/1,000) and can be done between CO₂ sessions
- + Morpheus8: RF microneedling adds deeper collagen remodeling without surface ablation — good for darker skin where CO₂ carries higher PIH risk
- + Topical retinoid (post-recovery): tretinoin or retinol used 4-6 weeks after the session supports ongoing skin remodeling
When picosecond is added for the residual color, Dra. Geldres sequences it between the CO₂ sessions; the order and spacing are set case by case.
Skin type considerations
Body skin on darker Fitzpatrick types is particularly prone to post-inflammatory hyperpigmentation after ablative laser. For Fitzpatrick V-VI patients, Morpheus8 or radiofrequency-based stretch mark protocols often outperform CO₂ in real-world outcomes — not because they're more powerful, but because they avoid the pigmentation complications that can compromise the result.
For Latin/mestiza skin (the dominant Lima patient demographic), the conservative approach is: hydroquinone pre-treatment for 4-6 weeks, conservative CO₂ parameters in zones with the most marks, and strict sun avoidance for 6 months after.
Best candidates for CO₂ stretch mark treatment
Ideal candidates have:
- Recent (less than 1 year) red/purple stretch marks — these respond strongest
- Defined treatment areas (a specific zone, not whole-body)
- Realistic expectations of partial improvement, not erasure
- Time and budget for more than one session
- Willingness to commit to strict sun avoidance for 6 months
- Stable weight (significant weight changes during the protocol can disrupt healing)
Frequently asked questions
Will all my stretch marks disappear?
No. CO₂ improves stretch marks substantially but does not eliminate them. How much they improve depends on their age and depth, and on your skin.
Is it more effective on new or old stretch marks?
New (red/purple) stretch marks respond significantly better than old (white/silver) marks.
Can I treat my whole abdomen in one session?
Dra. Geldres confirms it for your case. A session is S/1,000; the final cost depends on the size and number of zones treated.
Can I get pregnant after the treatment?
Yes, but pregnancy will likely create new stretch marks and disrupt the result. Most patients defer stretch mark treatment until they are done having children.
Do I need to do all sessions in Lima?
Ideally, yes — the same physician should perform the full series. How many sessions you need and how far apart they are is Dra. Geldres's call, so plan your trips once she has seen your stretch marks.
Will the marks come back?
The improvement is durable as long as your weight stays stable and you avoid significant new stretching events (pregnancy, rapid weight changes).
Bottom line
Fractional CO₂ at Elyzea offers meaningful stretch mark improvement at S/1,000 per session (~US$286) — a visible improvement, not erasure; how many sessions and how often is decided by Dra. Geldres. Recent red marks respond best; older white marks improve less but still benefit. Picosecond can be added for the residual color, and Morpheus8 when the skin is also loose. Message us on WhatsApp: we'll tell you the price for your case, what it includes and what the session is like.