Written by: Ellie Pranckevicius, FNP-BC, Aesthetic Nurse Practitioner & Aesthetic Injector | Facial Restoration & Regenerative Injectable Specialist, Mirror Plastic Surgery | Last updated: August 18, 2026
Key Takeaways
- Cellulite on the thighs and buttocks develops when fibrous septae tether the dermis to fascia while fat pushes upward, creating visible dimpling.
- Avéli performs targeted, verifiable subcision in a single in-office session and mechanically releases the specific bands responsible for each dimple.
- Results follow a predictable timeline. Visible smoothing begins within weeks, and collagen remodeling continues to improve outcomes at 3, 6, and 12 months.1
- Avéli works best for dimples visible at rest. Patients with skin laxity or contraction-only dimples may benefit from complementary radiofrequency or biostimulatory treatments.
- Schedule your personalized anatomical assessment at Mirror Plastic Surgery to determine whether Avéli or a combined approach fits your anatomy and goals.
How Fibrous Bands Create Cellulite on Thighs and Buttocks
In women, fibrous septae run vertically, connecting the dermis to the deep fascia. As subcutaneous fat lobules enlarge, these bands tether the skin downward while fat pushes upward, which produces the characteristic dimpled surface. In men, septae run at a 45-degree crisscross angle, which explains why cellulite affects 85–98% of postpubertal women but remains rare in healthy men.
The structural imbalance in the gluteal region is well-characterized. Short thin septa fail to contain superficial fat lobules, creating dimples at the more stable long, thick septal connections to the dermis. This baseline vulnerability becomes more pronounced when higher BMI increases fat lobule height and layer thickness, which exaggerates the imbalance. Aging compounds the problem by reducing dermal collagen and elastin, and this loss makes fat herniation easier even when weight stays stable. Estrogen adds another layer of complexity by reducing connective tissue stiffness, promoting fluid retention, and contributing to skin thinning. These factors help explain why cellulite often worsens during pregnancy and menopause.
DiBernardo’s 2026 prospective study on subcision plus helium plasma RF for cellulite confirmed that the structural basis for visible smoothing after targeted verifiable subcision includes mechanical release of fibroseptal bands plus subsequent collagen and elastin remodeling. This understanding of the subcision mechanism provides the foundation for evaluating Avéli’s specific approach to cellulite treatment.
How Avéli Subcision Works in a Single Session
Avéli uses a handheld device with a lighted wand and retractable blade to identify, confirm, and mechanically release the specific septal bands responsible for individual dimples under local anesthesia. The real-time verification step distinguishes it from earlier subcision tools. The clinician confirms that each band is fully severed before moving to the next dimple, which reduces guesswork.
In an open-label multicenter study of the FDA-cleared Avéli device for moderate-to-severe cellulite on the buttocks and thighs, subjects achieved a reduction on the Cellulite Severity Scale after a single treatment.1 The pivotal study supporting FDA clearance (Stevens et al., Aesthetic Surgery Journal 2023) reported meaningful improvement at 12 months.1
Following subcision, biomechanical forces within the subcutaneous layers redistribute, allowing fat lobules to shift into the created spaces and reducing fat protrusion at the subdermal junction, which produces measurable smoothing of the skin surface. Collagen production during healing further improves skin texture and firmness over the following months.
Book a consultation to find out whether Avéli is the right structural solution for your thighs and buttocks.
Cellulite Before and After on Thighs: 3-, 6-, and 12-Month Changes
Results from Avéli follow a predictable progression. This timeline helps patients interpret their own cellulite treatment before and after thigh photos and avoid premature conclusions.
Days 1–30: Some visible smoothing appears immediately after the procedure, though swelling and bruising initially obscure the full effect.1 As noted earlier, the transition from post-procedure inflammation to clearly visible improvement typically occurs within the first month.
Day 90 (3 months): Physician Global Aesthetic Improvement Scale (PGAIS) scores in DiBernardo’s 2026 study showed improvement at Day 90 after combined targeted verifiable subcision and helium plasma RF treatment. Quantitative volumetric imaging at this interval shows measurable reductions in dimple volume, surface area, and depth on the thighs.
Day 180 (6 months): Quantitative imaging showed improvement in a majority of thighs at Day 180, and some depressions showed no detectable volume or depth. Histological analysis confirmed progressive dermal remodeling by this point.
12 months: The multicenter pivotal study of Avéli reported high patient satisfaction with results at 12 months post-treatment. GAIS scores confirmed that the majority of patients showed improvement at this interval.
Avéli Buttock Results at 3 Months: Recovery and Visible Change
The buttocks follow a similar remodeling trajectory to the thighs. Progressive collagen deposition drives improvement beyond the initial mechanical release. Avéli before and after photos at 3 months on the buttocks usually show the shift from early bruising resolution to visible structural smoothing.
Results begin to show as early as 2 weeks post-treatment, most patients see results at 4 weeks, and improvement continues for up to 3 months following the single-session procedure.1 By the 90-day mark, collagen remodeling is well underway. True remodeling and stable final results from subcision develop over three to six months as collagen production strengthens the treated areas.
Downtime, Bruising, and Recovery After Subcision
Subcision carries a predictable recovery profile that patients should understand before scheduling. Both subcision and collagenase injections for cellulite cause significant bruising that lasts 1–2 weeks. This effect is expected because the procedure mechanically severs fibrous bands beneath the skin.
Both Cellfina and Avéli subcision procedures are performed in-office under local anesthesia with mild soreness and bruising, and most patients return to normal activity within a few days. Temporary skin discoloration can persist longer in some individuals. At Mirror Plastic Surgery, patients receive detailed pre- and post-procedure guidance so that recovery expectations are clear before the day of treatment.
Who Benefits Most From Avéli and Who Needs Alternatives
Avéli is indicated for a specific anatomical presentation. Subcision is appropriate only for cellulite depressions present at rest and is not indicated for depressions visible solely with muscle contraction. Candidacy assessment requires the patient to stand with legs hip-width apart, first relaxed, then with muscle contraction and pinching, to visualize which dimples qualify.
Several additional factors influence candidacy and outcomes.
- Skin thickness, elasticity, body contour, and depth of dimpling determine the degree of structural release achievable.
- High-estrogen states such as pregnancy, nursing, chronic oral contraceptive use, or hormone replacement therapy can exacerbate cellulite progression.
- BMI and weight history matter because post-weight-loss patients may require more complex procedures since the septal network stretches during weight gain but does not contract with weight loss.
- Skin laxity may benefit from complementary energy-based tightening rather than subcision alone.
Patients with diffuse mild cellulite, significant skin laxity, or dimples that appear only with muscle contraction may achieve better outcomes with radiofrequency-based treatments or a combination approach. Radiofrequency and laser energy-based devices improve skin texture and firmness for mild to moderate cellulite but do not release fibrous septae. Topicals do not penetrate deeply enough to release the fibrous bands responsible for cellulite, so any improvement remains limited to temporary surface effects.
Mirror Plastic Surgery’s hour-long top-to-bottom anatomical assessment focuses on this type of decision-making. The evaluation identifies whether fibrous tethering, skin laxity, volume deficit, or a combination of factors drives the patient’s specific presentation and then builds a plan accordingly.
Maintenance, Durability, and Why Results Last
Results from subcision can last for years because the released bands do not reattach. The mechanical severance is permanent for the treated bands. However, cellulite is a multifactorial condition, and no cellulite treatment provides a permanent cure; maintenance treatments are typically needed due to the condition’s multifactorial pathophysiology.
Durability data from the broader subcision literature supports multi-year outcomes. The multicenter pivotal study of the Cellfina system showed cellulite improvement at 1-year follow-up, and separate follow-up data later supported durability up to 5 years with no loss of benefit. A study of manual subcision found that many subjects remained satisfied with results 2 years after a single treatment.
Aging, hormonal changes, and weight fluctuations can generate new septal tethering over time. Patients who maintain stable weight, support skin quality through evidence-based topical regimens, and address emerging laxity with periodic energy-based treatments tend to preserve their results longest. Mirror Plastic Surgery structures follow-up care around these long-term variables rather than treating each visit as an isolated transaction.
Avéli, Radiofrequency, and Topicals: How They Compare
| Treatment | Sessions Required | Typical Downtime | Duration of Results |
|---|---|---|---|
| Avéli (targeted verifiable subcision) | Single session | Temporary bruising, return to activity within days | Avéli results are supported by clinical data demonstrating treatment benefits through one year of observation1 |
| Radiofrequency devices | Radiofrequency devices for cellulite treatment have been studied with protocols ranging from 4 to 12 sessions | Minimal | Temporary results that may require maintenance |
| Topical creams (retinol/caffeine) | Consistent use to achieve modest improvement | None | Temporary, effects cease when use stops, no septal release achieved |
Choosing Avéli at Mirror Plastic Surgery
The evidence for Avéli rests on a clear structural mechanism. Fibrous septae tether the dermis, subcision severs those tethers, and the skin surface smooths as biomechanical forces redistribute and collagen remodeling progresses. Cellulite treatment before and after pictures at 3, 6, and 12 months reflect this biology rather than a marketing narrative.
Individual anatomy still shapes every outcome. Skin thickness, septal architecture, hormonal status, and the specific pattern of dimpling at rest determine whether Avéli alone, Avéli combined with biostimulatory smoothing, or an energy-based alternative makes the most sense. That decision requires a thorough in-person assessment, not a gallery of before-and-after images.
At Mirror Plastic Surgery in St. Petersburg, Florida, Ellie Pranckevicius conducts hour-long top-to-bottom evaluations that prioritize safety and function before aesthetics. The practice performs a limited number of procedures each day so that every patient receives the anatomical precision and honest guidance their case requires. Avéli is offered alongside optional biostimulatory smoothing when skin quality warrants a complementary approach, and each plan is selected based on your anatomy rather than a preset protocol.
Book a consultation at Mirror Plastic Surgery to receive an evidence-based, anatomy-first assessment of your cellulite and a realistic plan for lasting results.
Disclaimer: Results may vary from person to person. Editorial content, before and after images, and patient testimonials do not constitute a guarantee of specific results.
Frequently Asked Questions
How long does it take to see results after Avéli cellulite treatment on the thighs and buttocks?
Some smoothing is visible immediately after the procedure because the fibrous bands are severed during the session itself. However, bruising and swelling obscure the full effect for the first one to four weeks, and most patients see clearly visible improvement by the 30-day mark. The 90-day point, three months post-treatment, is when collagen remodeling is well underway and results become more representative of the final outcome. Quantitative imaging studies show continued progressive improvement through six months, and pivotal clinical data document stable results at 12 months. Patients at Mirror Plastic Surgery receive a formal follow-up at 90 days to assess their individual response and determine whether any complementary treatment is warranted.
Is Avéli appropriate for all types of cellulite, or are some patients better suited to radiofrequency or other options?
Avéli is specifically indicated for cellulite dimples that are visible at rest, meaning the depressions are present when the patient is standing relaxed, not only when muscles contract or skin is pinched. Patients with this presentation and adequate skin quality are strong candidates. Those with diffuse mild cellulite without discrete dimples, significant skin laxity, or dimples that appear only with muscle contraction may achieve better outcomes with radiofrequency-based tightening, biostimulatory injectables such as Radiesse or alloClae, or a combination approach. The most reliable way to determine the right path is through a thorough in-person anatomical assessment. At Mirror Plastic Surgery, Ellie conducts an hour-long top-to-bottom evaluation that considers skin thickness, elasticity, dimple depth, hormonal history, and long-term goals before any recommendation.
How long do Avéli results last, and will I need maintenance treatments?
As discussed in the maintenance section, the mechanical severance of fibrous bands is permanent, which accounts for the durable nature of results. However, cellulite is a multifactorial condition influenced by aging, hormonal changes, weight fluctuations, and genetic factors. New septal tethering can develop over time in untreated areas or as the aging process continues. Patients who maintain stable weight, support skin quality with evidence-based topical regimens, and address emerging laxity with periodic energy-based treatments tend to preserve their results longest. Mirror Plastic Surgery structures follow-up care around these long-term variables and treats the patient relationship as ongoing rather than transactional.
What is the recovery like after Avéli, and when can I return to normal activity?
Avéli is performed in-office under local anesthesia, so the procedure does not require general anesthesia or a surgical facility. Bruising is expected in virtually all patients and typically resolves within one to two weeks. Mild soreness in the treated areas is common in the first few days. As outlined in the recovery section, the return to normal daily activity typically occurs within a few days, though strenuous exercise and direct pressure on treated areas are avoided during the initial healing window. Temporary skin discoloration beyond the bruising phase can occur in some individuals. At Mirror Plastic Surgery, patients receive detailed pre- and post-procedure instructions so that recovery expectations are clear before the treatment day, and the team remains accessible by call, text, or email throughout the healing process.
Does Mirror Plastic Surgery offer anything beyond Avéli for cellulite and buttock smoothing?
Mirror Plastic Surgery offers a broader toolkit for cellulite and buttock smoothing beyond Avéli. Avéli addresses the structural root cause of discrete dimpling by severing fibrous septae, but some patients present with additional concerns such as skin laxity, volume irregularities, or diffuse surface texture that benefit from complementary approaches. Ellie Pranckevicius offers biostimulatory injectables for non-surgical buttock contouring and smoothing, which stimulate collagen production and can address hip dips, volume asymmetry, and overall skin quality in the gluteal region. For patients whose cellulite presentation involves both structural tethering and overlying skin quality concerns, a combined approach using Avéli for subcision and a biostimulatory agent for smoothing may be recommended. All treatment decisions at Mirror Plastic Surgery are made based on individual anatomy and goals, not a fixed menu of services.
1 Results may vary from person to person. Editorial content, before and after images, and patient testimonials do not constitute a guarantee of specific results.
