Tear Trough Hollows: What Causes Them and What Skincare Can (and Cannot) Do
The under-eye groove that shows up in your forties is anatomical, vascular, and a skin-quality problem all at once.
You wake up one morning, look in the bathroom mirror, and notice the shadow. A little groove that runs from the inner corner of your eye down toward your cheek. You did not have it last year — at least, not so visibly. You can cover it with concealer, but it shows up again by lunchtime. This is the tear trough, and the reason it appears almost overnight is that it has been forming structurally for a decade, and one specific volume change finally tipped it into visibility.
The tear trough is not a wrinkle, not a dark circle, and not a bag. It is a depression — an actual concavity in the soft tissue contour between the lower eyelid and the upper cheek. Anatomically, it traces along the orbital rim where the orbicularis oculi muscle thins and the underlying bone curves down. In a youthful face, fat compartments above and below this groove smooth it out. As those compartments shift and shrink, the groove becomes a shadow [1].
What Actually Creates the Hollow
Three anatomical changes converge to produce a tear trough deformity, and they happen on different timescales [1, 2]:
Bone resorption. The maxilla — the bone that forms the orbital rim under your eye — slowly recedes throughout adulthood. Cone-beam CT studies show measurable orbital rim retrusion by the late thirties, accelerating in the fifties. As the bony platform pulls back, everything sitting on it sinks deeper into shadow.
Fat compartment migration. The midface fat pads that sit on the cheek do not just shrink with age — they migrate downward and lose their organized compartmentalization. CT imaging of the midface during aging demonstrates inferior displacement and volume shift of these compartments, which directly worsens the appearance of the infraorbital hollow [3]. The cheek that used to sit up against the lower lid drops away.
Skin and ligament thinning. The lower-eyelid skin is among the thinnest on the entire body, and the orbicularis retaining ligament that anchors the lid to the orbital rim becomes more prominent as overlying fat thins [2]. The ligament casts its own shadow once it loses cover.
You can cover it with concealer, but it shows up again by lunchtime.
Tear Trough vs. Dark Circles vs. Bags
These three concerns get bundled in casual conversation, but they have different causes and different fixes.
A true tear trough is a structural shadow — a real depression in the tissue. It looks worse in overhead lighting because the light skips the recessed area. Concealer helps a little; a flashlight pointed up at your face makes it almost disappear.
Periorbital hyperpigmentation — actual brown discoloration — is melanin-driven, sometimes vascular, sometimes from postinflammatory pigmentation related to allergies or atopic dermatitis. It looks the same in any lighting because the color is in the skin itself [4]. Topical brighteners (vitamin C, niacinamide, kojic acid, tranexamic acid) target this.
Under-eye bags (steatoblepharon) are the opposite problem — fat herniating forward through a weakened orbital septum, producing a bulge rather than a hollow. The treatments are essentially opposite: bags require fat removal or repositioning; tear troughs require volume restoration.
In practice, most people over forty have some combination of all three [5]. The shadow you see in the mirror is a structural hollow plus a vascular tint plus crepey skin texture compounded together — which is why a single product rarely fixes the whole thing.
What Topical Skincare Can Actually Do
Here is the honest framing: skincare cannot rebuild bone or restore migrated fat compartments. Anyone telling you a serum will fix a structural hollow is selling you marketing. What good topicals can do is improve the three skin-quality factors that make the hollow look worse than it is — thin, crepey skin texture; surface dyschromia; and dehydration.
If your tear trough is genuinely structural and bothers you significantly, a board-certified injector remains the most direct fix.
The best-evidenced topical for periorbital skin remains the retinoid family. A 2022 12-week clinical trial of a hydrating retinoid eye cream documented a 33% reduction in periorbital wrinkles and a 94% improvement in dryness with nighttime use; combined with a peptide morning cream, the regimen produced a 64% reduction in under-eye puffiness and a 68% improvement in redness [6]. The mechanism is well-established: retinoids stimulate type I and type III collagen production in the dermis, thicken the epidermis, and improve overall skin quality and reflectance [7]. Thicker, denser skin scatters light differently — it reduces the visibility of the hollow even when the underlying anatomy is unchanged.
Peptide serums — especially those containing palmitoyl peptides and copper peptides — show a smaller but real signal for periorbital firmness and barrier support [6]. Caffeine has modest evidence for reducing morning fluid puffiness via vasoconstriction. Vitamin K topicals show some signal for the vascular component of dark circles. Hyaluronic acid serums improve immediate plumping by drawing water into the dermis, which softens hollow visibility temporarily.
What Skincare Cannot Do
Filler — typically hyaluronic acid placed deep above the bone — is the only intervention that physically replaces lost volume. Studies in the periorbital region show high satisfaction rates and roughly one-year duration with FDA-approved products [3]. This is real, anatomical correction, and no topical replicates it. If your tear trough is genuinely structural and bothers you significantly, a board-certified injector remains the most direct fix.
Fat transfer, midface volumization with deeper fillers, and lower-blepharoplasty with fat repositioning are surgical-adjacent options for more advanced cases. These address the underlying anatomy.
A Realistic Periorbital Skincare Strategy
For most people in their forties and fifties dealing with mild-to-moderate hollowing, a layered topical approach addresses everything except the structural component:
- Daily SPF on the periorbital area. UVA penetrates more deeply than UVB and is the primary driver of dermal photoaging — including the elastin breakdown that thins the lower lid skin further [7]. Mineral or chemical, both work; the daily habit matters more than the product.
- Nightly retinoid. A formulation tolerable enough to use 4-7 nights per week beats a stronger one you use twice a week. Retinol around the eyes is well-tolerated when properly formulated.
- Morning antioxidant. Vitamin C with ferulic acid for daytime free-radical defense.
- Hydration layer. A peptide-and-hyaluronic-acid eye cream provides the immediate plumping that softens shadow visibility.
Why Delivery Decides Whether Retinol Works Around the Eyes
The reason most retinol eye creams underperform is not the active ingredient — it is the delivery system. Conventional retinol formulations rely on alcohols, glycols, and surfactants to disrupt the skin barrier enough for the molecule to penetrate. Around the eyes, where the skin is already thinnest and most reactive, this barrier disruption shows up as redness, peeling, and stinging. Most people abandon the product before they see results.
Nanoretinol uses biomimetic lipid nanoparticles that the skin recognizes as “self” and allows through the epithelial barrier without chemical disruption. The delivery efficiency is what makes a 0.2% concentration outperform conventional formulations at higher doses — in clinical testing, the system produced 232% greater collagen recovery and 73% greater elastin recovery versus standard retinol [8]. For periorbital skin, that combination of effective delivery and minimal irritation is exactly what the area requires.
A tear trough is bone, fat, ligament, and skin all at once. Skincare can only address the skin layer — but for many people, improving that layer is enough to soften how the hollow reads in the mirror. For the rest, a topical routine paired with conservative volume restoration handles what skincare alone cannot.
References
- Hirmand H. “Anatomy and nonsurgical correction of the tear trough deformity.” Plastic and Reconstructive Surgery. 2010;125(2):699-708. doi:10.1097/PRS.0b013e3181c82f90
- Vrcek I, Ozgur O, Nakra T. “Infraorbital Dark Circles: A Review of the Pathogenesis, Evaluation and Treatment.” Journal of Cutaneous and Aesthetic Surgery. 2016;9(2):65-72. doi:10.4103/0974-2077.184046
- Woodward J, Cox SE, Kato K, Urdiales-Galvez F, Boyd C, Ashourian N. “Infraorbital Hollow Rejuvenation: Considerations, Complications, and the Contributions of Midface Volumization.” Aesthetic Surgery Journal Open Forum. 2023;5:ojad016. doi:10.1093/asjof/ojad016
- Sarkar R, Ranjan R, Garg S, Garg VK, Sonthalia S, Bansal S. “Periorbital Hyperpigmentation: A Comprehensive Review.” Journal of Clinical and Aesthetic Dermatology. 2016;9(1):49-55. PMC4756872
- Mukherjee S, Date A, Patravale V, Korting HC, Roeder A, Weindl G. “Retinoids in the treatment of skin aging: an overview of clinical efficacy and safety.” Clinical Interventions in Aging. 2006;1(4):327-348. doi:10.2147/ciia.2006.1.4.327
- Kaufman J, Callender V, Young C, Jones P, Wortzman M, Nelson D. “Efficacy and Tolerability of a Retinoid Eye Cream for Fine to Moderate Wrinkles of the Periorbital Region.” Journal of Drugs in Dermatology. 2022;21(9):932-937. doi:10.36849/JDD.6815
- Weihermann AC, Lorencini M, Brohem CA, de Carvalho CM. “Elastin structure and its involvement in skin photoageing.” International Journal of Cosmetic Science. 2017;39(3):241-247. doi:10.1111/ics.12372
- North Biomedical LLC. “Nanoretinol vs. Conventional Retinol: Efficacy in Collagen and Elastin Recovery.” Clinical Study Summary, 2024. Study summary
