The 40+ Muscles in Your Face: Why They Need Training and How EMS Helps
About the Authors
Bertica M. Rubio, M.D.
Medical Director, Antiaging Regenerative Medicine Clinic | Board-Certified Physician | Dartmouth Medical School
Dr. Bertica M. Rubio is a board-certified physician and Medical Director of the Antiaging Regenerative Medicine Clinic in Redlands, California. She earned her Bachelor of Science degree from Loyola Marymount University and her Doctor of Medicine from Dartmouth Medical School (Geisel School of Medicine). She completed her pediatrics residency at UC Irvine Medical Center.
With decades of clinical experience, Dr. Rubio specializes in age management medicine, regenerative medicine, wound healing, and growth factor therapies. Her practice integrates evidence-based medical science with advanced aesthetic and regenerative treatments, helping patients achieve optimal health and youthful vitality.
Dr. Rubio is passionate about educating patients on the science behind skincare, facial rejuvenation, and non-invasive technologies like EMS (Electrical Muscle Stimulation) for facial toning. Her articles for PureLift LAB combine rigorous medical knowledge with practical guidance for achieving real, lasting results.
Andrew Conrad Barile, PT, DPT
Doctorate of Physical Therapy (DPT), Licensed Physical Therapist (PT)
Dr. Andrew Conrad Barile is a Doctor of Physical Therapy and the CEO and Founder of Xtreem Pulse LLC. He earned his Doctorate in Physical Therapy from Daemen College and brings over two decades of clinical and entrepreneurial experience in pediatric physical therapy, craniosacral therapy, and medical device innovation. His deep understanding of human anatomy, muscle physiology, and therapeutic technology provides invaluable science-backed approach to facial rejuvenation and anti-aging solutions.
Daniel Grinberg, MD, FACS
Board-Certified Otolaryngologist & Head and Neck Surgeon | Fellow, American College of Surgeons | Assistant Clinical Professor, Mount Sinai School of Medicine
Daniel Grinberg, MD, FACS is a Board-Certified Otolaryngologist and Head & Neck Surgeon at ENT and Allergy Associates in West Nyack, NY. He earned his medical degree from Columbia University College of Physicians and Surgeons, completed his Otolaryngology residency at New York University Medical Center, and serves as Assistant Clinical Professor at Mount Sinai School of Medicine. He is a Fellow of both the American College of Surgeons and the American Academy of Otolaryngology.
Dr. Grinberg's head-and-neck surgical perspective brings PureLift LAB readers a wider clinical lens — connecting at-home EMS practice to the underlying medical anatomy with the same scientific rigor we apply to every device specification.
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You train your body, your arms, your legs, your core. But the 40-plus muscles that define your jawline, hold up your cheekbones, and control every expression on your face? Most people do nothing. This is the fundamental insight behind facial fitness: the same muscles responsible for your facial structure can be trained, strengthened, and toned, and EMS (Electrical Muscle Stimulation) is the most effective way to do it.
This guide maps the key facial muscles, explains why they weaken with age, and shows how EMS training directly addresses the structural changes that creams, serums, and surface-level devices simply cannot reach.
Facial Muscles Anatomy: An Overview
Your face contains over 40 distinct muscles, some sources count as many as 43, organized into two functional categories: the muscles of facial expression and the muscles of mastication (chewing). Together, they form the structural scaffolding that defines how your face looks, moves, and ages.
Unlike most body muscles, which connect bone to bone, the majority of facial muscles connect bone to skin. This means when they contract, they move the skin directly, creating expressions, maintaining structural position, and supporting the contours that define your facial architecture. It also means that when they weaken, the effects are immediately visible: sagging, softening, and loss of definition.
The Key Muscle Groups
Frontalis, The broad muscle of the forehead. Responsible for raising the eyebrows and creating horizontal forehead lines. When it weakens, brow position drops, contributing to hooded-eye appearance and forehead heaviness.
Orbicularis oculi, The circular muscle surrounding each eye. Controls blinking and squinting. Weakening contributes to crow's feet, under-eye hollowing, and loss of orbital support.
Zygomaticus major and minor, The smile muscles, extending from the cheekbone to the corner of the mouth. When toned, they support cheek height and mid-face fullness. When they weaken, the mid-face flattens and descends.
Buccinator, The deep cheek muscle. Maintains cheek tension against the teeth and supports mid-face structure. Weakening contributes to the hollowed, sunken appearance that many people attribute purely to fat loss.
Masseter, The primary muscle of chewing, located along the jaw angle. One of the strongest muscles in the body relative to its size. Tone in the masseter defines jawline angularity and lower-face structure.
Orbicularis oris, The circular muscle around the mouth. Controls lip position, pucker, and the structural integrity of the lip-chin complex. Weakening contributes to downturned mouth corners and perioral lines.
Platysma, The broad, thin muscle sheet covering the front of the neck. When toned, it creates a smooth, defined jawline-to-neck transition. When it weakens, visible bands appear and the jawline blurs into the neck, the "turkey neck" effect.
Mentalis, The chin muscle. Supports chin projection and the lower lip. Weakening contributes to chin dimpling and a recessed-looking lower face.
Each of these muscles can be individually targeted with a precision EMS device, which is what makes the technology uniquely suited to addressing specific structural concerns.
Why Facial Muscles Weaken With Age
Facial muscle atrophy follows the same biological principles as muscle loss anywhere in the body, but with one important difference: the consequences are immediately visible.
The Atrophy Process
Starting in your late 20s to early 30s, muscle mass begins declining at approximately 3–8% per decade (a process called sarcopenia). This affects facial muscles just as it affects biceps or quadriceps. The difference is that facial muscles are smaller, thinner, and directly attached to skin, so even modest volume loss translates to visible structural change.
As facial muscles lose tone and volume, they can no longer support the overlying skin and fat pads in their youthful position. This is why aging faces display predictable patterns: jowling (weakened masseter and platysma), flattened cheeks (weakened zygomaticus and buccinator), brow drop (weakened frontalis), and neck laxity (weakened platysma).
Why Creams and Serums Cannot Fix This
Topical products work on the skin's surface and upper layers. They can hydrate, protect against UV damage, and deliver active ingredients that support skin quality. What they cannot do is strengthen, tone, or rebuild the muscle layer beneath the skin. No serum, regardless of ingredient concentration, can cause a weakened masseter or platysma to regain structural tone.
This is the gap that facial fitness addresses: the muscular foundation that determines structural appearance, independent of skin condition.
Why Microcurrent Falls Short
Microcurrent devices (NuFace, Foreo BEAR, ZIIP) deliver current in the microamp range, below the threshold needed to cause muscle contraction. While microcurrent may stimulate surface-level cellular activity, it does not cause the involuntary muscle contraction required to build or maintain muscle tone. This is why microcurrent addresses surface quality but not structural support. For the full comparison, see EMS vs Microcurrent Facial Devices.
How EMS Trains Facial Muscles
EMS (Electrical Muscle Stimulation) is the only at-home technology that directly engages and strengthens facial muscles through involuntary contraction. Here is how it works at each stage.
The Contraction Mechanism
An EMS device delivers precision-controlled electrical impulses through the skin to motor neurons embedded in facial muscle fibers. These impulses trigger the same contraction-relaxation cycles that occur during voluntary muscle movement, but with two critical advantages.
First, EMS recruits muscle fibers that normal facial expressions rarely activate at full depth. Your daily expressions use a fraction of available muscle capacity. EMS engages the deeper fibers that voluntary movement cannot efficiently reach.
Second, EMS provides consistent, repeatable stimulus. Voluntary facial exercises depend entirely on your effort and technique at any given moment. EMS delivers the same precise contraction every session, enabling progressive, measurable training.
Targeting Specific Muscles
A handheld EMS device allows precise targeting of individual muscle groups based on electrode placement:
Jawline protocol, Gliding along the mandible targets the masseter and lower face muscles responsible for jaw definition. This is the highest-impact area for most users and the primary focus of the PureLift Pro's slender handle design.
Mid-face protocol, Positioning the device along the cheekbone targets the zygomaticus and buccinator, supporting cheek height and mid-face fullness.
Neck protocol, Working the platysma from jawline to collarbone addresses neck banding and the jawline-to-neck transition.
Forehead protocol, Careful application across the frontalis supports brow position and forehead tone.
For a complete step-by-step treatment guide, see How to Use an EMS Facial Device: Beginner's Guide.
The Role of Randomized Frequency Modulation
A critical factor in long-term EMS effectiveness is how the device handles frequency. Fixed-frequency devices deliver the same signal every session, and muscles eventually adapt, a phenomenon called neural accommodation, causing results to plateau.
PureLift devices use Triple-Wave randomized frequency modulation (1.37–1.73 kHz), varying the signal unpredictably so muscles cannot adapt. Research by Avendano-Coy et al. (2019) demonstrated that randomized frequency modulation reduced accommodation compared to fixed-frequency stimulation. This means results continue progressing over months and years, rather than stalling after initial improvement.
For more on this topic, see What Is Facial Muscle Accommodation?.
What Happens When You Train Facial Muscles Consistently
Understanding the anatomy is important, but what does consistent facial muscle training actually produce? The timeline follows predictable physiological patterns.
Weeks 1–2: Neuromuscular Activation
During the first sessions, the primary adaptation is neuromuscular, your facial muscles learn to respond to the EMS stimulus. You will feel involuntary contractions immediately (confirming the device is engaging muscle tissue), and temporary post-session contouring is visible. The "pump" effect, similar to how body muscles look immediately after training, is real but temporary at this stage.
Weeks 3–6: Cumulative Toning
With consistent sessions (three to five per week, 10 minutes each), cumulative muscle toning begins. The temporary effects last longer between sessions. Jawline definition becomes more persistent. Mid-face lift starts becoming noticeable. The muscle fibers are adapting to regular stimulus, building tone the same way body muscles respond to consistent resistance training.
Weeks 6–12+: Structural Change
This is where meaningful structural improvement appears. Firmer jawline, more defined cheekbones, improved neck contour. These are genuine muscular adaptations, the underlying structure supporting your facial contours has strengthened. Skin appearance also improves as better-toned muscles provide a firmer foundation and enhanced circulation supports collagen production.
Ongoing Maintenance
Like any fitness program, maintenance is required to sustain results. Two to three sessions per week maintains the structural improvements built during the initial phase. Discontinuing treatment allows muscles to gradually return to baseline, exactly as happens when you stop training any other muscle group.
For honest expectations and detailed timelines, see EMS Facial Device Results: Honest Expectations.
EMS vs. Other Approaches to Facial Muscle Health
Several approaches claim to address facial muscle tone. Understanding the mechanism behind each helps clarify why EMS is uniquely effective.
Facial Massage and Manual Manipulation
Facial massage improves circulation and can temporarily relieve tension, but it does not cause muscle contraction or build muscle tone. The mechanism is mechanical displacement of tissue, not muscular training. Benefits are real (relaxation, lymphatic drainage, circulation boost) but they address a different goal than structural muscle strengthening.
Facial Exercises (Face Yoga)
Manual facial exercises do engage muscles through voluntary contraction. The challenge is consistency, depth of engagement, and time investment. Most facial exercise programs require 15–30 minutes daily and depend entirely on the user's technique and effort. Results are inconsistent because the stimulus is inconsistent. EMS delivers the same precise contraction every session in approximately 10 minutes.
Microcurrent Devices
As discussed above, microcurrent operates at current levels below the threshold for muscle contraction. It addresses skin-level stimulation but does not engage the structural muscle layer. For users specifically targeting muscle tone and structural lift, microcurrent addresses the wrong layer.
Radiofrequency (RF) and LED
These technologies work on the skin and collagen layer, not on muscle tissue. RF uses heat for collagen remodeling; LED uses specific light wavelengths for cellular stimulation. Neither causes muscle contraction. They are complementary to EMS (the PureLift Glow combines EMS + LED in one device) but do not replace muscle training.
Injectable Treatments
Botox relaxes specific muscles (often the frontalis and orbicularis) to reduce dynamic wrinkles, the opposite of training. Fillers add volume beneath the skin to restore facial contour. Both are valid approaches to facial aesthetics, but neither strengthens or trains the underlying muscle structure. EMS and injectables address different aspects of facial aging and some users combine both.
Which Facial Muscles Should You Prioritize?
For users beginning facial EMS training, focusing on the highest-impact muscle groups first produces the most visible results.
Priority 1: Jawline and Lower Face
The masseter and platysma define jawline structure. This is where age-related muscle weakening produces the most visible change (jowling, blurred jawline) and where EMS training delivers the most dramatic improvement. The PureLift Pro ($699) is specifically designed with a slender handle for precision jawline, chin, and neck targeting.
Priority 2: Mid-Face and Cheeks
The zygomaticus and buccinator support cheek height and mid-face volume. Training these muscles addresses the "flattened cheek" effect that contributes significantly to an aged appearance.
Priority 3: Neck
The platysma covers the entire front of the neck. Neck banding and laxity are among the most age-signaling changes and respond well to consistent EMS training.
Priority 4: Forehead and Brow
The frontalis requires gentler approach due to the thinner tissue in this area. Start at lower intensities and build gradually.
A complete PureLift session covers all four areas in approximately 10 minutes. For the full treatment routine, see Your Complete PureLift Facial Fitness Routine.
Safety Considerations for Facial Muscle Training
EMS training is safe for most healthy adults when used as directed. Key considerations:
Start at low intensity and build gradually. Facial muscles are smaller and more sensitive than body muscles. Let them adapt to EMS over the first several sessions before increasing intensity.
Use conductive serum. Proper conductivity ensures the electrical signal reaches the target muscle evenly. PureLift's Activator Serum is specifically formulated for EMS conductivity and includes active ingredients designed for the INFUSE Mode delivery system.
Respect contraindications. Avoid EMS if you have a pacemaker or implanted electronic device, epilepsy, active cancer, or severe cardiovascular conditions. Avoid treatment over active skin conditions, open wounds, or areas with metal implants. Consult a physician if uncertain.
All PureLift devices are FDA cleared 510(k) and made in Japan with ISO-certified manufacturing. For comprehensive safety information, see Are EMS Facial Devices Safe?.
Key Takeaways
Your face contains over 40 muscles that directly determine your facial structure, contour, and how you age. These muscles weaken with age just like any other muscle in your body, and the visible consequences (jawline softening, cheek flattening, neck laxity) are what most people attribute to "getting older."
No cream, serum, or surface-level device can strengthen facial muscles. The muscular layer requires actual contraction to build and maintain tone, exactly what EMS provides.
EMS is the only at-home technology that causes involuntary muscle contraction, directly engaging and training the deep muscle fibers responsible for facial structure. Randomized frequency modulation (PureLift's Triple-Wave at 1.37–1.73 kHz) prevents the accommodation plateau that undermines fixed-frequency approaches.
Training your face follows the same principles as training your body. Consistency, progressive stimulus, and recovery time. Three to five sessions per week, 10 minutes each, produces measurable structural change within four to eight weeks.
Enhance your results with the PureLift Activator Serum, specially formulated for optimal EMS conductivity and skincare benefits.
You train your body. It is time to train your face. Explore PureLift devices at pureliftlab.com.