An SMAS facelift is a surgical procedure that lifts and tightens a specific layer of tissue beneath your skin called the SMAS, short for superficial musculoaponeurotic system. Unlike older facelift techniques that only pulled the skin tighter, this approach repositions the deeper structural layer responsible for facial sagging, producing more natural and longer-lasting results. On average, a well-performed SMAS facelift lasts about 12 years, and the procedure carries a reported success rate above 93%.
What the SMAS Layer Actually Is
The SMAS is a fibrous network of tissue that sits between your skin and the deeper muscles of your face. Think of it as a connective sheet that links your facial muscles to the surface of your skin. It runs below the cheekbone and above the broad, flat muscle of the neck (the platysma), essentially forming a “mask” over the muscles that control your expressions.
This layer plays a central role in how your face moves. It transmits and amplifies the activity of every facial muscle, which is why you can smile, frown, and raise your eyebrows with such precision. But that same connectivity makes it a key player in aging. As the SMAS weakens and stretches over time, the skin, fat, and muscle above it begin to droop. That’s what creates jowls along the jawline, deepening folds around the nose and mouth, and a softer, less defined neck contour.
How the Surgery Works
A traditional facelift that only pulls skin tight tends to look stretched and doesn’t last long because the underlying structure is still sagging. An SMAS facelift addresses that deeper layer directly. The surgeon makes incisions (typically hidden around the ears and along the hairline), then lifts and repositions the SMAS itself. Because you’re moving the structural foundation rather than just the surface, the results look more natural and hold up significantly longer.
Surgeons use a few different techniques to handle the SMAS once it’s exposed:
- Plication: The SMAS is folded over on itself and sutured in place to create tension and lift, without removing any tissue.
- Imbrication: A strip of SMAS is removed, and the remaining edges are overlapped and stitched together, resuspending the tissue more aggressively.
- High SMAS: The dissection extends higher toward the cheekbone, allowing the surgeon to address midface sagging in addition to the lower face and jawline.
The technique your surgeon chooses depends on how much correction you need and where your aging is most pronounced. Plication is the least invasive of the three, while imbrication and high SMAS approaches involve more dissection but can produce more dramatic improvement.
SMAS vs. Deep Plane Facelift
The deep plane facelift has gained significant popularity in recent years, and many people researching facelifts want to know how it compares. The core difference is the depth of dissection. In an SMAS facelift, the surgeon works on the SMAS layer itself, lifting or folding it. In a deep plane facelift, the surgeon goes beneath the SMAS, releasing it from the deeper tissues so the entire composite of skin, fat, and SMAS moves as one unit.
Deep plane advocates argue this allows more natural repositioning, especially in the midface and around the nasolabial folds. However, the technique involves more extensive dissection and carries a higher rate of major hematoma (collected blood under the skin) at 1.22%, compared to lower rates with SMAS plication. Some experienced surgeons have noted that deep plane results can present less favorable characteristics over the long term and have adopted the high SMAS technique as their preferred approach for that reason. Neither technique is universally “better.” The right choice depends on the patient’s anatomy, degree of aging, and the surgeon’s expertise.
What It Improves
The SMAS facelift particularly excels at correcting the lower two-thirds of the face. The most noticeable improvements are along the jawline, where jowls are lifted and definition is restored. It also smooths the nasolabial folds (the lines running from your nose to the corners of your mouth), tightens loose skin along the neck, and restores a more youthful facial contour overall. Many surgeons combine it with neck work or fat transfer for a more comprehensive result.
People in their 50s with moderate to pronounced facial aging are often considered the best candidates for this approach. At that stage, skin laxity and structural descent are typically significant enough that less invasive options like thread lifts or mini facelifts won’t deliver meaningful improvement, but the tissue still retains enough quality to heal well and hold the correction.
Recovery Timeline
The first day after surgery is the hardest. You’ll feel groggy from anesthesia and will need someone to drive you home and stay with you overnight. Pain medication is most necessary during these initial 24 hours.
By day two, your surgeon will typically see you for a follow-up visit to check your incisions, evaluate swelling, and change your dressings. Bruising and swelling peak around days three and four, which can be alarming if you’re not expecting it, but this is completely normal. Most people stop needing prescription pain medication by days four through six and start moving around more comfortably.
During the first week, keeping your incisions clean is critical to preventing infection. By the end of week two, most visible bruising has faded enough that you can go out in public without it being obvious. Residual swelling, though, can linger for weeks. While you’ll notice a clear improvement within the first month, final results take a few months to fully settle as deeper tissues heal and swelling completely resolves.
Risks and Complications
A large meta-analysis comparing complication rates across SMAS techniques found that the risks vary depending on how aggressively the SMAS is handled. SMAS plication, the least invasive approach, had the lowest complication profile. High lateral SMAS techniques carried a temporary nerve injury rate of 1.85%, and SMAS imbrication showed a major hematoma rate of 1.92%, both statistically higher than plication.
Permanent nerve injury did not differ significantly between techniques, and overall rates remain low. The most common issues patients actually experience are temporary numbness, prolonged swelling, and minor asymmetry that often resolves as healing progresses. Hematoma, when it occurs, usually develops in the first 24 to 48 hours and may require a return to the operating room to drain.
Cost
The national average cost of an SMAS facelift is $13,574, based on 2025 research across all 50 states. Prices range from roughly $10,700 to over $22,000 depending on the surgeon’s experience, geographic location, facility fees, anesthesia, and whether you add complementary procedures like eyelid surgery or fat grafting. Because it’s a cosmetic procedure, insurance does not cover it, though many practices offer financing plans.