Nefertiti Lift: How Botox Redefines the Jawline (and What It Can't Do)
A neck-and-jawline botulinum toxin technique with real evidence behind it — and a blind spot most clinics don't mention
Somewhere in your forties, the jawline stops being a line. It becomes a suggestion. The shadow that once separated face from neck softens, the corner of the jaw blurs, and photographs taken from slightly below become quietly unbearable.
The Nefertiti lift is one of the more elegant answers cosmetic medicine has produced for this. It is not surgery, not filler, and not a device. It is botulinum toxin, placed with unusual precision, exploiting a mechanical fact about your neck that most people have never considered.
Your Jawline Is Losing a Tug-of-War
The muscles of the lower face pull in opposing directions. Above the jaw, the elevators lift. Below it, a broad, thin sheet of muscle called the platysma runs from the collarbone up across the neck and over the jawline, and it pulls down.
For most of your life this is a fair fight. With age it stops being fair. The platysma thickens and its edges begin to stand out as visible vertical cords, while the tissues above the jaw lose the volume and elasticity that used to resist them. The downward vector wins. The result is a jawline that looks pulled toward the neck rather than carved away from it.
There is a second, less-discussed contributor: the bone itself changes. Three-dimensional CT analysis of 120 adults found that the mandible measurably remodels with age, with the jaw angle widening and mandibular height and length declining in older groups [1]. The scaffold under the soft tissue is quietly reshaping while the soft tissue is sagging over it. This is why the same amount of skin looks looser at 55 than at 35 — there is less bone holding it out.
What Levy Actually Described in 2007
The technique was formalized by Phillip Levy, a Geneva-based physician, in the Journal of Cosmetic and Laser Therapy in 2007 [2]. He named it after Nefertiti, the Egyptian queen whose bust is famous for an almost architecturally sharp jaw and long neck.
The method itself is disarmingly simple. Rather than treating platysmal bands in isolation — which had been done for years — Levy injected small amounts of botulinum toxin type A along the inferior border of the mandible and into the upper portion of the platysma bands, using up to 20 units total. By selectively weakening the muscle that pulls the jawline down while leaving the elevators untouched, the tug-of-war tips back upward. The skin along the jaw drapes rather than droops.
Levy weakened the single muscle that drags the jawline downward, and found that the jaw began to drape rather than droop.
Levy reported his experience across 130 patients, describing recontouring and elevation of the jawline in the large majority of them [2]. That original series was open-label and physician-assessed, not a randomized controlled trial — worth knowing when a clinic quotes success rates at you.
Why Relaxing a Muscle Changes a Contour
Botulinum toxin does one thing: it blocks acetylcholine release at the neuromuscular junction, so the treated muscle fibers stop contracting. Everything cosmetic follows from that.
In the neck, the effect is more mechanical than it is in the forehead. A relaxed platysma stops exerting continuous downward traction on the jawline and the corner of the mouth. Reviews of platysma treatment describe both the resting-tone reduction and the softening of the vertical bands that make a neck read as older [3]. A broader 2024 review of botulinum toxin in the lower face and neck reaches the same conclusion — meaningful improvement in facial contouring and neck appearance, achieved without cutting anything [4].
Results appear over roughly one to two weeks, which matches how long the toxin takes to fully take effect, and typically last three to four months before the muscle recovers function.
What a Nefertiti Lift Cannot Do
Here is where honest expectation-setting matters, because this is a treatment that gets oversold.
It does not remove skin. If there is genuine excess skin under the chin, relaxing a muscle will not take it up. That is a surgical problem.
If you are treating a blurred jawline, the smart move is to treat the muscle and the skin, because they fail independently.
It does not replace volume. The hollowing that makes a face look drawn is fat-pad and bone loss. Toxin does nothing for it.
It does not treat skin quality. And this is the one that trips people up. A Nefertiti lift can sharpen the shape of the jaw and neck while leaving the surface exactly as it was — thin, crepey, finely lined, sun-mottled. Patients often describe the outcome as “better angle, same skin.”
That last limitation is structural, not a failure of technique. Botulinum toxin acts on muscle. The crepiness of aging neck skin is a dermal problem — collagen and elastin loss in a region where the skin is thin, chronically sun-exposed, and rarely given the care the face receives. Nothing injected into a muscle addresses the dermis above it.
The Half of the Result Nobody Injects
If you are treating a blurred jawline, the smart move is to treat the muscle and the skin, because they fail independently.
Topical retinoids remain the most rigorously validated tool for the dermal half. In a randomized, double-blind, vehicle-controlled trial in naturally aged skin — average participant age 87 — 0.4% retinol applied up to three times weekly for 24 weeks produced significantly increased glycosaminoglycan levels and collagen production compared with vehicle, along with reduced fine wrinkling [5]. That study is notable precisely because it was done in genuinely old, non-photodamaged skin: the aging dermis retains the capacity to rebuild when given the right signal.
The catch is delivery. Retinol has to reach living cells in the dermis to do any of this, and conventional formulations struggle. Many push retinol through by disrupting the skin barrier itself — effective in a crude sense, and the reason so many people meet retinol as burning, flaking, and redness rather than as results. On thin neck and jawline skin, that trade is particularly unpleasant.
This is the specific problem Nanoretinol was built to solve. Rather than forcing retinol through a compromised barrier, it encapsulates it in biomimetic lipid nanoparticles — particles the skin reads as “self” and admits without damage, the same class of delivery technology used in modern drug development. In North Biomedical’s clinical study, the encapsulated formulation was 232% more effective in collagen recovery and 73% more effective in elastin recovery than conventional retinol, with clinical use over 56 days producing a 61% increase in skin firmness and 56% increase in elasticity. It runs at 0.2% retinol in a water-based, 99% natural formulation — a low concentration that works because delivery, not dose, is the limiting factor. Firmness and elasticity are precisely the two variables a toxin injection cannot touch.
Where This Leaves You
A Nefertiti lift is a genuinely good tool used for the right problem: a jawline blurred primarily by platysmal pull, in someone with reasonable skin quality and no significant skin excess. In that patient it is quick, low-risk, and quietly effective.
It is a poor tool for sagging jowls driven by volume loss, for real skin laxity, and for crepey neck texture. Those need different answers — volume for the first, energy devices or surgery for the second, and consistent dermal care for the third.
The best outcomes come from people who understand which problem they actually have. Sharpen the angle with the injection if that is what is blurring your jaw. Then treat the skin stretched over it, because no amount of muscle relaxation will make thin, crepey skin look young.
References
- Shaw RB Jr, Katzel EB, Koltz PF, Kahn DM, Girotto JA, Langstein HN. “Aging of the Mandible and Its Aesthetic Implications.” Plastic and Reconstructive Surgery. 2010;125(1):332-342. doi:10.1097/PRS.0b013e3181c2a685
- Levy PM. “The ‘Nefertiti lift’: A new technique for specific re-contouring of the jawline.” Journal of Cosmetic and Laser Therapy. 2007;9(4):249-252. PMID: 18236245
- Tamura BM. “The Effect of Botulinum Toxin on the Platysma Muscle.” Current Dermatology Reports. 2012;1(2):89-95. doi:10.1007/s13671-012-0013-y
- Kassir M, Babaei M, Hasanzadeh S, et al. “Botulinum toxin applications in the lower face and neck: A comprehensive review.” Journal of Cosmetic Dermatology. 2024;23(4):1205-1216. PMID: 38059697
- Kafi R, Kwak HSR, Schumacher WE, et al. “Improvement of Naturally Aged Skin With Vitamin A (Retinol).” Archives of Dermatology. 2007;143(5):606-612. doi:10.1001/archderm.143.5.606
