The face contains more than a dozen discrete fat compartments arranged in both superficial and deep layers. With age, these compartments lose volume and descend as retaining ligaments weaken. The tear trough, deep medial cheek, and malar fat pads are the most clinically significant. Two separate processes are at work: volume loss (the pad deflates, causing hollowing) and descent (the pad migrates inferiorly, causing volume to appear in the wrong location). Accurate identification of which compartments are involved, and which process is dominant, determines the appropriate clinical approach.
What are facial fat pads?
The soft tissue of the face is not a single uniform layer. It is organised into multiple discrete compartments of fat, each with its own boundaries, blood supply, and rate of change over time. These compartments, commonly called fat pads, are arranged in both superficial and deep layers. In the superficial layer, they sit between the skin and the SMAS (superficial musculo aponeurotic system). In the deep layer, they sit beneath the SMAS, in close contact with the bone. The distinction matters clinically: deep fat pads are more directly involved in structural support, while superficial fat pads contribute more to surface contour and skin projection. The face has more than a dozen distinct fat compartments, though the ones most clinically relevant to facial ageing are concentrated around the eye, cheek, and lower face.
The deep fat pads and structural support
The deep fat pads provide the primary volumetric scaffold for overlying tissue. The deep medial cheek fat pad is one of the largest and most clinically significant, it occupies the central cheek beneath the zygomaticus major muscle and provides support for the overlying superficial fat and skin. As it deflates with age, the overlying tissue loses its foundation, contributing to the characteristic midface hollowing and nasolabial fold deepening seen in mid life. The deep lateral cheek fat pad occupies the lateral cheek and similarly contributes to lateral midface projection. The sub orbicularis oculi fat (SOOF) sits beneath the orbicularis muscle of the eye and supports the lower eyelid and cheek junction. Volume loss in the SOOF is a primary driver of the sunken, tired appearance around the eye.
The superficial fat pads and surface contour
The superficial fat pads sit above the SMAS and contribute to the external contour of the face. The nasolabial fat pad occupies the lateral alar region and is directly responsible for the fullness of the nasolabial region in youth. Its deflation contributes to the deepening of the nasolabial fold. The malar fat pad is a triangular superficial compartment that sits over the cheek and is the primary contributor to the ‘apple cheek’ fullness of youth. It is particularly prone to gravitational descent along the nasolabial fold with age, and its loss of position contributes more to the aged lower midface than simple deflation. The medial cheek fat pad is a smaller compartment adjacent to the nose. The jowl fat pad accumulates along the lateral chin with descent of the buccal fat pad, contributing to the jowl contour.
The tear trough and periorbital fat pads
The periorbital region has a particularly complex fat pad architecture that explains why it ages so visibly. The infraorbital fat pad fills the space between the lower eyelid skin and the orbital rim. As this pad loses volume and the orbital rim undergoes bone resorption, the transition from lower eyelid to cheek becomes a visible groove, the tear trough deformity. The preseptal and orbital fat pads within the eyelid itself are contained by the orbital septum in youth; as the septum weakens with age, these fat pads may herniate anteriorly, producing the ‘fat bags’ that appear below the eye. These are a separate issue from tear trough hollowing: one involves excess apparent volume (herniated fat), the other involves volume deficit (pad atrophy combined with skeletal resorption). Treating them as the same problem produces the wrong outcome.
Volume loss versus descent: two distinct processes
Fat pad ageing involves two separate but concurrent processes. Volume loss occurs as fat cells within each compartment atrophy and the overall mass of the pad reduces. This produces hollowing in areas previously supported by the pad. Descent occurs as the retaining ligaments that hold fat pads in their superior position weaken and elongate, allowing the pad to migrate inferiorly under gravity. Malar fat pad descent is among the most clinically significant: a pad that was centred over the cheekbone in youth can migrate to the lower cheek and upper jowl region over decades. The result is not simply less volume where you want it, it is volume appearing in the wrong location. Understanding which process is dominant in an individual patient informs the appropriate clinical approach.
Compartment specific change across the face
Not all fat pads change at the same rate. The tear trough region tends to show change earliest, in the late twenties or early thirties. The deep medial cheek fat changes substantially through the thirties and forties. The malar fat pad descent becomes prominent in the forties. The buccal fat pad, which fills the lateral cheek and contributes to the oval facial contour, undergoes volume change in a pattern that varies by individual, in some patients it atrophies with age; in others, particularly those with heavier constitutional facial fat, it may not reduce significantly. The jowl fat accumulation in the lower face is primarily the result of descended tissue from above rather than primary fat growth in that region. Understanding this sequence helps both patients and clinicians set realistic expectations about which changes are likely to respond to volumisation and which require a different framing.
What this means for clinical assessment
Accurate identification of which fat pads are primarily responsible for a patient’s current presentation is a prerequisite for any treatment plan involving volume restoration. A clinician assessing the midface needs to distinguish deep pad atrophy from superficial pad descent from ligamentous laxity from skeletal change, these produce overlapping surface presentations but require different approaches. Over volumising a descended pad rather than addressing its position produces an over filled appearance without correcting the structural source of ageing. This is one of the reasons that pretreatment assessment at Core Aesthetics involves detailed structural analysis rather than a treatment menu selection. Volume restoration is a tool, but only in the context of understanding what specific compartments have changed and in what direction.
The relationship between fat pads and other structural layers
Fat pads do not age in isolation, their change is interdependent with the other three structural layers. Skeletal resorption reduces the bony platform that fat pads rest upon, amplifying the visual effect of volume loss. Ligament laxity allows descent of pads that would otherwise remain superior. Skin quality affects how well the skin adapts to the reduced scaffolding beneath it. This is why a single layer intervention rarely produces a comprehensively natural result in patients with multi layer change. Volumising a depleted fat pad in a face where skeletal change is also prominent may improve one dimension of the problem while leaving another untouched. The most clinically coherent outcomes are produced when the assessment considers all four layers and the treatment plan addresses the dominant drivers proportionately.
Planning a consultation around fat pad change
If volume loss or descent is a significant component of what you are noticing in your face, a structural consultation can identify which specific compartments are involved and whether volumisation, repositioning, or a combination approach is appropriate. At Core Aesthetics, the consultation includes assessment of fat pad position across the face, identification of descent versus deflation as the primary mechanism, and honest discussion of what conservative nonsurgical intervention can and cannot address at your particular stage of change.
Why Fat Pads Are Central to Facial Appearance
The discrete fat compartments of the face are responsible for a larger proportion of facial appearance than most people realise. The contours of the cheek, the definition of the orbit, the fullness of the temples, and the youthful convexity of the midface are all substantially determined by the volume and position of these compartments. When the compartments are full and in their natural position, the face has the smooth, convex contours associated with youth. As they thin and descend with age, the face becomes more concave and segmented, with shadows appearing between formerly continuous surfaces. Understanding the fat pad system is therefore fundamental to understanding facial ageing, and it is the foundation of any genuinely informed treatment conversation. A practitioner who frames facial ageing in terms of fat pad changes is working from a more accurate anatomical model than one who describes ageing primarily in terms of skin or wrinkles.
The Superficial and Deep Fat Systems
The fat pads of the face are organised into two systems: superficial and deep. The superficial fat compartments sit just below the skin and are separated by fibrous septa. They include the nasolabial fat, the medial and middle cheek fat, the orbital fat, the jowl fat, and the temporal fat. The deep fat compartments sit closer to the bone and muscle, beneath the superficial system. They include the deep medial cheek fat, the sub orbicularis oculi fat (SOOF), and the buccal fat pad. These two systems age differently. The deep fat pads tend to lose volume more profoundly and earlier, which is why the midface flattens and the orbital rim becomes more prominent before the overlying skin shows severe changes. The superficial compartments descend as well, but their movement is also driven by the loss of support from the deep compartments beneath them. Treatment that only addresses the superficial system while ignoring deep volume loss produces a result that can look displaced rather than naturally supported.
Which Compartments Change First and Why
The deep medial cheek fat is consistently identified as one of the earliest and most significant contributors to midface ageing. It sits below and medial to the eye, providing support to the overlying structures. Its atrophy causes the characteristic hollowing below the eye and the progressive prominence of the tear trough. The temporal fat pad is another early mover, and its loss produces the temple hollowing that gives the upper face a skeletonised appearance. The SOOF sits beneath the orbicularis oculi muscle and its volume is critical to the support of the lower eyelid and the smooth transition between the lid and the cheek. Once it atrophies, the lower lid appears to sit in a deeper pocket, increasing the shadowing of the tear trough. Understanding which compartments are changing in a specific patient requires direct clinical examination, not inference from surface appearance alone.
Fat Pad Asymmetry and Its Clinical Significance
No face is perfectly symmetrical, and the fat pad system is no exception. Most people have some degree of natural asymmetry in fat pad volume between the left and right sides, and this becomes more apparent as ageing amplifies the differences. Asymmetric ageing is particularly common in patients with a dominant sleeping side, a history of unilateral UV exposure such as from driving, or an asymmetric dental occlusion that creates different muscular loading on each side of the face. A thorough assessment should document and discuss fat pad asymmetry, because treatment that ignores it will either replicate the asymmetry or, in some cases, exacerbate it. Conversely, a well planned treatment approach can use the knowledge of asymmetric fat pad loss to improve balance, producing a result that looks more natural than if each side had been treated identically.
How Fat Pad Knowledge Guides Treatment Planning
The clinical value of understanding the fat pad system lies in its ability to guide precise treatment decisions. Rather than placing volume based on surface appearance, a practitioner who understands which specific compartments have lost volume can treat the anatomical source of the change rather than its surface manifestation. This distinction matters enormously for outcomes. Placing volume at the surface of a depression that is caused by deep fat pad loss produces a very different result from placing it in the deep compartment itself. The latter restores structure; the former may camouflage without correcting, and in some tissue planes can produce a shelf effect or an unnatural heaviness. Patients who understand the fat pad system are better equipped to evaluate whether a proposed treatment plan is addressing the correct anatomical layer for their specific concerns.
The Relationship Between Fat Pads and the Skeleton
The fat pads do not exist in isolation. They are supported from below by the bony skeleton, and as bone remodelling progresses with age, the base on which the fat pads sit changes. The pyriform aperture widens, reducing support to the nasolabial region. The superomedial orbital rim recedes, altering the support for the SOOF and the lower lid fat. The anterior projection of the chin reduces, affecting how the lower facial fat compartments are supported. These bony changes mean that fat pad volume loss and structural change are not independent processes; they occur together and interact. A comprehensive assessment considers both. In patients where significant bone remodelling has occurred, volume replacement alone may not fully address the appearance, because the underlying scaffold has itself changed. This is one of the reasons why early intervention, before substantial bone remodelling has occurred, tends to produce more straightforward results.
Frequently asked questions
How many fat pads does the face have?
The face has more than a dozen discrete fat compartments arranged in both superficial and deep layers. The most clinically relevant to visible ageing are concentrated around the eye, cheek, and lower face, the tear trough, deep medial cheek, malar, nasolabial, and jowl regions.
What is the difference between fat pad volume loss and fat pad descent?
Volume loss refers to the reduction in the mass of fat within a compartment, the pad simply has less fat, producing hollowing. Descent refers to the downward migration of the pad as retaining ligaments weaken, the pad volume may be relatively preserved but it has moved out of its optimal position. Both can occur simultaneously, and identifying which is dominant affects the appropriate clinical approach.
Why does the tear trough appear to hollow with age?
The tear trough region ages because of a combination of factors: the infraorbital fat pad loses volume, the orbital rim undergoes bone resorption, and the junction between the lower eyelid and cheek becomes increasingly defined. The result is a groove or trough that creates shadowing and a tired appearance.
Is the malar fat pad the same as the cheekbone?
No. The malar fat pad is a triangular compartment of soft tissue that sits over the cheekbone. In youth, it fills the cheek and contributes to the rounded appearance. With age it descends and its superior surface, previously over the cheekbone, becomes hollow. This can create the appearance of a more prominent cheekbone when in fact what has changed is the overlying soft tissue, not the bone.
Can volumisation address fat pad descent?
Volumisation can partially compensate for descent by adding volume in areas that have become hollow. However, true descent, where a pad has migrated inferiorly, is not fully corrected by adding volume to the superior position; it may require techniques that address position rather than mass. Understanding which mechanism is dominant in your individual face is an important part of pretreatment assessment.
At what age do fat pads typically start changing?
The process varies by compartment and by individual. The tear trough and periorbital fat pads typically show the earliest visible change, sometimes in the late twenties or early thirties. The deep cheek fat pads change substantially through the thirties and forties. Malar descent often becomes prominent in the forties.
Does everyone lose fat in the same pattern?
No. Genetic factors significantly affect which compartments deflate earliest and at what rate. Some individuals lose predominantly medial cheek fat; others lose more peripheral or periorbital fat. The pattern of change is one of the reasons a structural assessment is individual specific rather than protocol driven.