Slim BBL: Brazilian butt lift in thin patients
Clinical case · Slim BBL technique · Hip dip correction · Natural result
The Slim BBL, or BBL for thin patients, is a variation of the Brazilian butt lift designed specifically for women with a low BMI, generally 22 or less, and limited donor fat. Unlike the standard BBL, the Slim BBL prioritizes definition, harmony, and hip dip correction over maximum volume, achieving visible transformations even with moderate amounts of fat.
In this case, we present a very thin patient with minimal donor fat and pronounced dimples in her hips. With precise technique and well-adjusted expectations, a more curvaceous and harmonious silhouette was achieved, demonstrating the true potential of the Slim BBL.
Slim BBL clinical case video
Quick facts
- Profile: thin patient, usually with a BMI of 22 or less.
- Objective: Improve shape, projection and hip-gluteal transition.
- Key: use the available grease with maximum precision.
- Ideal for: Pronounced hip dips, little projection, and a desire for a natural result.
- Limit: It cannot generate more volume than the donor fat allows.
⚡ The essentials — what you need to know
- The Slim BBL is designed for thin patients with little available fat.
- The main objective is not maximum volume, but a more harmonious and natural silhouette.
- The correction of hip dips is often one of its most interesting indications.
- The technique matters more than the amount of fat transferred.
- Artificial weight gain before surgery is not recommended.
- When there is not enough fat for the desired result, a Supercharged BBL or a hybrid technique may be considered.
What exactly is a Slim BBL?
The Slim BBL is a Brazilian butt lift performed on thin patients, typically with a BMI of 22 or less. In these cases, the amount of fat available for transfer is limited, so the goal is not to achieve maximum volume, but rather to enhance the shape, projection, and transition between waist, hips, and buttocks in a natural way.
To better understand how it compares to a standard BBL, check out our complete guide to buttock augmentation (BBL).
Are you thin and want to improve your buttocks?
The Slim BBL can be an option even if you have little body fat. The most important thing is a personalized assessment to determine if you are a candidate and what results are realistic for your body.
Case description: Slim BBL in a very thin patient
The patient had a very thin build, with little donor fat in all the usual areas: abdomen, flanks, and thighs. In addition, she had pronounced hip dips that accentuated the lack of curves in the hip area.
The Slim BBL plan was designed with three specific objectives: to extract the maximum viable fat from the available areas, to purify it properly to maximize graft survival, and to strategically place it to smooth hip dips and add projection to the buttocks.
The result was a remarkable transformation, with a more curvaceous and feminine silhouette, demonstrating that the Slim BBL can be very effective even with little fat available.
Patient profile
- Very thin build
- Approximate BMI of 20-21
- Minimum donor fat
- defined hip dips
- Buttocks with little projection
- Objective: a more curvy and natural silhouette
Technique: Slim BBL with selective liposuction, fat purification and layered deposition with microcannulas.
Techniques used in this Slim BBL case
1. Selective liposuction with microcannulas
In the Slim BBL, liposuction is performed on areas with more available fat: abdomen, flanks, and thighs, depending on each patient's assessment. Microcannulas are used for greater precision and to extract the maximum amount of viable fat without compromising the contour.
2. Fat purification to maximize survival
The extracted fat is processed and purified to separate the most viable cells. In the Slim BBL, this step is especially critical because there is little fat available: every cell must be used to its fullest potential for the graft to survive and the result to be long-lasting.
3. Layered deposit in buttocks and hips
The fat is injected into different layers of the buttocks and hip area using microcannulas. Strategic distribution is key to the Slim BBL: placing the fat exactly where needed to smooth hip dips and add natural projection.
4. 360º contour molding
The Slim BBL doesn't just work the buttocks: it harmonizes the entire silhouette with a 360º approach to achieve balanced proportions between waist, hips and buttocks.
Key points about the Slim BBL before you decide
- Limited donor fat = limited transfer volume: The Slim BBL cannot generate more fat than the body already has. The result is proportional to your starting anatomy.
- Realistic expectations: The goal is to improve and harmonize, not to radically transform the body.
- Small amounts of fat can make big changes: especially in the correction of hip dips.
- Technique matters more than quantity: The accuracy of fat distribution is more important than the total volume transferred.
- Artificial weight gain is not recommended: Artificially gained fat is usually of lower quality and has worse survival after grafting.
Related: Hip dips: what they are and how they are corrected with surgery.
Slim BBL vs standard BBL: what are the differences?
Although they share the same technical basis, the Slim BBL and the standard BBL have important differences that are worth knowing:
| Feature | Slim BBL | BBL standard |
|---|---|---|
| Patient profile | Thin, BMI ≤ 22 | normal BMI or with excess fat |
| Available fat | Limited | Larger quantity |
| Main goal | Shape, harmony and correction of hip dips | Volume and projection |
| Volume transferred | Moderate | Largest possible volume |
| Cooperation | Microcannulas and precision depot | Standard or advanced technique |
| Expected result | Natural and proportional | More forceful |
For thin patients seeking more volume who don't have enough fat, a [procedure] may be considered. Supercharged BBL with implant or hybrid approach with implants and fat.
Good candidates for the Slim BBL
- Thin women with a BMI of 22 or less
- With some fat in the abdomen, flanks, or thighs
- Pronounced hip dips that want to soften
- Flat or poorly projected buttocks
- Skin with good elasticity
- Stable weight over the last 3-6 months
- Realistic and adjusted expectations
- Non-smokers or those willing to quit smoking
Cases that require special assessment
- Very low BMI, less than 18, with minimal fat
- Recent massive weight loss
- Skin with a lot of sagging on the buttocks
- Expectations of high volume with low fat
In these cases, a Supercharged BBL with a moderately sized implant combined with available fat.
Do you want a personalized assessment?
Every patient is different. At Cirumed Clinic Marbella, Dr. Aslani's team will study your case individually to explain which options are safe, realistic, and suitable for your anatomy.
You can send us your goals and some photos via video consultation. We'll guide you through the procedure, recovery, and the most suitable plan for you.
Safety in the Slim BBL: what you should know
The Slim BBL, like any BBL procedure, must be performed following strict international safety protocols. The primary concern in BBL surgery is avoiding the injection of fat into deep planes that could cause embolisms.
- Hospital environment: The Slim BBL at Cirumed is always performed in a hospital operating room with a complete anesthetic team.
- Safe injection molding: The fat is injected exclusively into subcutaneous planes, never into the muscle, following international safety guidelines for BBL.
- Experienced team: Dr. Alexander Aslani has over 20 years of experience in body contouring surgery and is one of the surgeons with the highest number of BBL procedures performed in Spain.
- Postoperative follow-up: The protocol following the Slim BBL includes in-person check-ups and direct access to the medical team during recovery.
Recovery after the Slim BBL: step by step
1. First 2 weeks: take care of the grafted fat
The most important thing after the Slim BBL is to avoid compressing the newly grafted fat. You must avoid sitting directly on your buttocks. It is recommended to lie face down or use special BBL cushions when sitting is necessary.
2. Weeks 2-6: progressive activity
Light activity can be resumed within the first few days. Office work is generally possible within 7 to 10 days. Compression garments continue to be worn in the liposuction areas as prescribed by your doctor.
3. Weeks 4-6: return to exercise
Exercise can be resumed gradually from weeks 4-6, starting with gentle activity and gradually increasing the intensity according to tolerance and the surgeon's judgment.
4. 3-6 months: definitive result
The results of the Slim BBL mature over the first 3 to 6 months. The fat that survived the grafting process is integrated into the tissue, and the contour has stabilized. It is normal for the volume to fluctuate slightly during this period before stabilizing.
Key tip: In the Slim BBL, where the amount of available fat is limited, strictly following post-operative instructions is even more important than in a standard BBL. The survival of each fat cell matters more when there is less total fat transferred.
Slim BBL and hip dip correction: an ideal combination
One of the great advantages of the Slim BBL is its effectiveness in correcting hip dips. Hip dips are especially common in thin women because the lack of subcutaneous fat makes the depression between the greater trochanter and the hip more visible.
In the Slim BBL, some of the extracted fat is specifically deposited in the hip dips to fill that depression and create a smoother, more continuous curve between the waist and buttocks. Even a small amount of fat, when properly placed in this area, can visually transform the silhouette significantly.
The result is a more natural and feminine transition that was not possible before with the fat that the body distributed naturally.
Related: Hip dips: complete surgical operation and treatment.
Learn more about BBL and body contouring at Cirumed
If you want to know all the available options for improving your glutes, we recommend you consult:
Are you a candidate for the Slim BBL?
Every Slim BBL case is different. The amount of available fat, the shape of the buttocks, the presence of hip dips, and each patient's goals determine whether the Slim BBL is the right technique or if other options should be considered. The most important thing is a personalized consultation with a specialist.
At Cirumed, we have been performing body contouring surgeries in Marbella for over 20 years. Dr. Alexander Aslani is one of the most experienced surgeons in Slim BBL and hip dip correction in Spain.
Do you want a personalized assessment?
Every patient is different. At Cirumed Clinic Marbella, Dr. Aslani's team will study your case individually to explain which options are safe, realistic, and suitable for your anatomy.
You can send us your goals and some photos via video consultation. We'll guide you through the procedure, recovery, and the most suitable plan for you.
Frequently Asked Questions about the Slim BBL
The Slim BBL is a Brazilian butt lift performed on slender patients, typically with a BMI of 22 or less. Unlike the standard BBL, it prioritizes definition, harmony, and hip dip correction over maximum volume, tailoring the result to the amount of fat available in each patient.
It depends on the available fat and its quality. In the Slim BBL, the volumes are usually moderate, aiming for a natural and proportionate result. There is no fixed number: the pre-operative assessment determines exactly how much viable fat can be extracted and grafted in each specific case.
Yes, the Slim BBL is especially effective at smoothing hip dips. Even small amounts of well-placed fat in the hip dip area can visibly transform the transition between the waist and buttocks, creating a smoother, more feminine curve.
Artificial weight gain before the Slim BBL is generally not recommended. Artificially gained fat is of lower quality and has a worse survival rate after grafting. The preoperative medical evaluation will determine if the available volume is sufficient for the patient's goals.
If the available fat is not enough to achieve the desired result with Slim BBL, there are other options: the Supercharged BBL adds a moderately sized implant to achieve more projection, and the hybrid approach combines implant and the little fat available for a more natural result.
Yes, the Slim BBL is safe when performed in a specialized center with strict safety protocols. At Cirumed, we follow international safety guidelines for BBL: injection exclusively into subcutaneous planes, a hospital setting, and a team with extensive experience in this technique.
Recovery from the Slim BBL generally takes between 4 and 6 weeks. Office work can be resumed within 7 to 10 days. Exercise can be gradually incorporated starting in weeks 4-6. The final result is visible between 3 and 6 months after the procedure.
Yes. The Slim BBL is frequently combined with Lipo 360 to define the waist simultaneously, with hip dip correction at the same time, or with breast surgery in the same surgical procedure. The combination of procedures is always decided based on the safety and goals of each patient.
