Under-Eye Wrinkles: What Causes Them and How to Treat Them
Author
Written by one of our askINKEY skincare advisors
Published
21 January, 2022
The skin directly under your eyes is the thinnest on your entire face - measuring roughly 0.3 to 0.5mm thick compared to about 2mm elsewhere. That single fact explains almost everything: why fine lines appear here first, why dark circles show through, and why this area reacts so visibly to dehydration, a bad night’s sleep, or years of afternoon sun. Under-eye wrinkles are not a flaw or a failure. They are a predictable, biological reality - and with the right approach, they are highly treatable.
This guide covers everything you need to know about under-eye wrinkles: what actually causes them at a skin-science level, how to prevent them before they deepen, which ingredients are backed by real clinical data, how to build a simple AM and PM routine, and how to tell the difference between wrinkles and dark circles (because they are not the same problem). No guesswork. No overclaiming. Just clear, ingredient-led guidance you can act on today.
Whether you are in your early twenties and thinking ahead, or in your thirties watching lines become more defined, the information here applies. Under-eye wrinkles are common, normal, and - with consistency - genuinely improvable.
Why the Under-Eye Area Ages Faster Than You Think
To understand why under-eye wrinkles form, it helps to understand what skin is actually made of and why the periorbital area - the skin surrounding the eye - is structurally different from skin elsewhere on the face.
The Skin Science Behind Wrinkle Formation
Skin gets its firmness, elasticity, and smooth surface from two proteins: collagen and elastin. Collagen provides structural support - think of it as the scaffolding beneath the skin’s surface. Elastin allows the skin to spring back into place after being stretched or compressed. Together, they keep skin looking plump, bouncy, and smooth.
The problem is that collagen production begins declining as early as your mid-twenties - at a rate of approximately 1% per year. That percentage sounds small, but it compounds. By your mid-thirties, the cumulative loss is significant enough to show up as visible fine lines, loss of firmness, and a generally thinner appearance to the skin. And because the under-eye area has far less collagen to begin with - less fat padding, fewer oil glands, and that paper-thin depth of 0.3 to 0.5mm - it registers this decline earlier and more visibly than anywhere else on the face.
This is not unique to any skin type or tone. The structural thinning of the periorbital area is a universal aspect of human aging. What differs between people is the rate at which it progresses - and that rate is heavily influenced by external factors, most of which are preventable.
UV Damage: The Accelerant Nobody Talks About Enough
Cumulative UV exposure is one of the leading drivers of premature under-eye aging. UV radiation - specifically UVA rays, which penetrate deep into the dermis - breaks down existing collagen fibers and generates free radicals that damage the skin’s cellular machinery. This process, called photoaging, is separate from the natural aging process but compounds on top of it.
The tricky part about UV damage is that it is invisible in the moment. You cannot feel UVA rays. You do not burn from them in the way you burn from UVB. But years of unprotected exposure - driving, sitting near windows, spending time outdoors without SPF - silently degrade the collagen matrix that keeps the under-eye area smooth. Understanding what SPF does for the skin is one of the most important pieces of skin education you can take on.
Dehydration Lines vs. True Wrinkles
Not every line under the eye is the same kind of problem. There is an important distinction between dehydration lines and structural wrinkles, and conflating them leads to using the wrong solutions.
Dehydration lines are surface-level. They appear when the skin lacks water - not oil, but water - and the outer layers become dry, crinkled, and slightly translucent. These lines tend to be fine, numerous, and almost crinkly in texture, like tissue paper. The good news: they respond quickly to hydration. Apply a good hyaluronic acid serum and they often visibly diminish within hours.
True structural wrinkles are a different matter. These are caused by collagen and elastin loss, meaning the skin has actually thinned and lost its structural support. They tend to be fewer but deeper, and they do not disappear with hydration alone. They require consistent use of active ingredients - retinoids, peptides - over weeks and months to visibly improve. That said, dehydration always makes structural wrinkles look worse. Keeping the area hydrated is not just a cosmetic fix - it is a foundational step in any wrinkle treatment plan. For a full breakdown, see our guide on dehydrated skin.
Repeated Facial Movements and the Making of Dynamic Wrinkles
Every time you squint in bright sunlight, smile, or rub your eyes, you are creasing the skin around your eyes in the same places. Over thousands of repetitions, those creases stop fully bouncing back. The lines that form from repeated muscle movement are called dynamic wrinkles - and the ones at the outer corners of the eyes are what most people call crow’s feet.
This does not mean you should stop smiling. But it does mean that habits like chronic squinting (often a sign that you need sunglasses outdoors or a stronger prescription), rubbing your eyes, and sleeping face-down into a pillow are all quietly contributing to lines forming faster.
Lifestyle Factors That Speed Up Collagen Loss
Beyond genetics and the inevitable biological clock, certain lifestyle habits accelerate the timeline significantly. Poor sleep disrupts the body’s nighttime repair cycle - the period during which skin regenerates and produces collagen. Smoking introduces oxidative stress that degrades collagen at a cellular level. A high-sugar diet triggers a process called glycation, where sugar molecules attach to collagen fibers and make them stiff and brittle. And chronic stress elevates cortisol, which suppresses collagen synthesis.
None of this means you need to overhaul your entire lifestyle to have good skin. But it does underscore why topical products work best as part of a broader picture of skin health - not as standalone miracle workers.
Now that you understand the science behind what causes under-eye wrinkles, the natural next step is looking at how to intervene - both proactively and reactively.
How to Prevent Under-Eye Wrinkles Before They Deepen
Prevention is not about fear - it is about leverage. The actions you take now, in your twenties and early thirties, compound over time in your favor. The same way collagen loss compounds against you, a consistent protective routine builds a buffer that slows the visible effects of aging.
SPF Every Single Morning - No Exceptions
If there is one thing a skin scientist would tell you to do above all else, it is this: wear a broad-spectrum SPF every morning, every day, rain or shine, whether you plan to be outside or not. UV exposure is cumulative and irreversible. Every unprotected minute spent near a window, in a car, or outdoors adds to a lifetime total that manifests as collagen breakdown, pigmentation, and accelerated wrinkling.
The evidence here is not subtle. Photoaging is responsible for the vast majority of visible premature skin aging - far more than intrinsic biological aging alone. SPF is the single most evidence-backed preventive step in all of dermatology. Learn more about what SPF does and why it matters to understand how it works at the skin level, so daily application becomes instinctive rather than optional.
Vitamin C in the Morning: Antioxidant Defense and Collagen Support
SPF blocks UV rays, but it does not neutralize the free radicals already generated by UV exposure and environmental pollution. That is where Vitamin C comes in. As an antioxidant, Vitamin C intercepts free radicals before they can damage collagen-producing cells. It also plays a direct role in the body’s collagen synthesis pathway - without adequate Vitamin C, the skin cannot produce functional collagen efficiently.
Morning application is key. Vitamin C works synergistically with SPF when used together in the AM routine, creating a one-two punch against photoaging. The 15% Vitamin C + EGF Serum ($20) delivers a potent 15% concentration of stabilized Vitamin C alongside Epidermal Growth Factor, which supports skin renewal. For more on how this ingredient works, see our guide to Vitamin C and its role in skin health.
Keep the Under-Eye Area Hydrated Consistently
Hydration is not glamorous advice, but it is relentlessly effective. A well-hydrated under-eye area looks plumper, smoother, and more even-toned. More importantly, maintaining the skin’s water content reduces the likelihood of dehydration lines forming, which can layer on top of structural wrinkles and make the whole area look worse than it actually is.
The practical step here is applying a hyaluronic acid serum to damp skin - morning and evening - and gently patting it around the orbital bone (not dragging or pulling). Applying to damp skin is not a technicality; it significantly improves hyaluronic acid’s ability to draw moisture into the skin rather than from it.
Sunglasses, Sleep Position, and Gentle Handling
Three smaller habits that add up over time:
- Wear sunglasses outdoors. Reducing squinting frequency reduces the repetitive creasing that drives crow’s feet and under-eye lines.
- Sleep on your back where possible. Side-sleeping compresses one side of the face for hours every night. Over years, this creates sleep lines that gradually become permanent.
- Always use your ring finger around the eye area. The ring finger exerts the least pressure of any finger. Dragging or rubbing the delicate eye area with your index finger during product application creates unnecessary mechanical stress on already thin skin.
Prevention builds the foundation. But if lines are already forming - or you simply want to speed up improvement - the right active ingredients are what create real, measurable change.
The Best Ingredients for Under-Eye Wrinkle Treatment
This is the section that matters most if you are looking for results. The skincare market is full of promises, but only a handful of ingredients are genuinely supported by clinical evidence for reducing the appearance of fine lines and wrinkles around the eyes. Here is what the science actually says - and what to use.
Retinol and Retinal: The Gold Standard for Fine Lines
Ask any dermatologist what single ingredient has the strongest evidence base for anti-aging, and retinoids will almost always be the answer. Retinol and retinal (retinaldehyde) are both forms of vitamin A that work by accelerating cell turnover and stimulating collagen production in the dermis. A 2024 review published in PMC confirmed that topical retinol inhibits the enzymes that break down collagen while simultaneously stimulating new collagen synthesis - a powerful dual action.
Research published in the Journal of Drugs in Dermatology found that retinol-treated skin showed improvements in photoaging signs as early as week 4, with continued improvements through 12 weeks of consistent use. A separate clinical review reported a 32% reduction in wrinkle depth and a 28% improvement in skin elasticity with consistent retinoid use.
One persistent myth is that retinoids are too harsh to use around the eye area. This is not accurate - what matters is the formulation. Correctly formulated, well-tolerated retinoids are safe for periorbital use, and the under-eye area actively benefits from their collagen-building properties.
For beginners: Starter Retinol is designed for those new to retinoids, or anyone with sensitive skin. It delivers a low-strength, gentle introduction to retinoids that allows the skin to build tolerance gradually. Use PM only, starting with 1-2 nights per week, applied to the face and gently around the orbital bone.
For experienced retinoid users: Advanced Retinal uses retinaldehyde - a more potent form of vitamin A that converts to retinoic acid faster and more efficiently than retinol. It delivers stronger, faster results for those who have already established a retinoid routine and are ready to step up. PM only.
For a deeper dive into how this ingredient works at the molecular level, visit our guide on retinol and how it works.
“Retinoids remain the most studied and most validated topical ingredient for reducing the visible signs of skin aging, including fine lines, wrinkles, and loss of firmness.” - Journal of Drugs in Dermatology, 2024
Hyaluronic Acid: Immediate Plumping, Lasting Hydration
Hyaluronic acid (HA) is a naturally occurring molecule in the skin that holds up to 1,000 times its weight in water. In the context of under-eye wrinkles, it works in two ways: first, by instantly plumping the skin so that fine lines appear less pronounced; second, by maintaining the water content that keeps the under-eye area cushioned and smooth over time.
Not all hyaluronic acid is equal. Molecular weight matters - smaller molecules penetrate deeper into the skin, while larger molecules sit at the surface and provide immediate plumping. The best formulas use multiple molecular weights simultaneously.
The Hyaluronic Acid Serum ($13 / 30ml) contains a 2% concentration of multi-molecular hyaluronic acid at three molecular weights, ensuring hydration at multiple skin depths. It also contains Matrixyl 3000 - a peptide complex that signals the skin to produce more collagen and elastin - making it an overachiever for its price point. Apply to damp skin, morning and evening. For everything you need to know about this ingredient, see what hyaluronic acid does for skin.
Peptides and Ceramides: Collagen Signaling and Barrier Strength
Peptides are short chains of amino acids that act as messengers in the skin. When applied topically, they signal skin cells to ramp up collagen and elastin production - essentially mimicking the communication breakdown that happens as we age and trying to reverse it. They are not as fast-acting as retinoids, but they are well-tolerated by all skin types, including those too sensitive for retinol, and they work well in combination with other actives.
Ceramides are equally important, though for a different reason. They are the structural lipids that make up the skin’s moisture barrier - the outermost protective layer that keeps water in and irritants out. When the barrier is compromised, the skin becomes more reactive, more prone to dehydration, and less resilient to the environmental stressors that drive collagen breakdown.
The Bio-Active Ceramide Moisturizer ($22 / 50ml) addresses both concerns. It contains Bioactive Ceramide NP to visibly firm, smooth, and strengthen the skin barrier, plus Gransil Blur for an immediate soft-focus effect that visually reduces the appearance of fine lines. It is clinically proven to reduce 6 signs of aging in 28 days - and it works as the finishing step in both your AM and PM routine.
Caffeine: Depuff the Area, Make Lines Look Less Pronounced
Caffeine does not directly treat wrinkles, but its role in an under-eye routine is still genuinely useful. It works by constricting blood vessels and reducing fluid retention - which is why it targets puffiness and the bluish-purple discoloration of dark circles. Puffiness and shadowing can make fine lines look significantly worse, so reducing them creates an overall cleaner, smoother appearance around the eye.
The Caffeine Eye Cream ($14 / 15ml) contains 0.3% caffeine alongside Matrixyl 3000 (for collagen support) and Albizia Julibrissin Bark Extract (for microcirculation). Use it in the morning as your dedicated eye step. Paired with a PM retinoid, it creates a complete dual approach - one ingredient addressing puffiness and darkness in the morning, the other targeting wrinkles and collagen at night.
With the right ingredients identified, the next step is understanding how to combine them into a routine that actually works.
Building a Simple Under-Eye Wrinkle Routine That Works
The most effective routine is the one you will actually do every day. Complexity is the enemy of consistency - and consistency is the single most important variable in whether any skincare routine delivers results. The routine below is streamlined, science-backed, and built around building a complete skincare routine principles that work for all skin types.
Your Morning Routine
A well-structured AM routine focuses on protection, hydration, and antioxidant defense.
- Cleanse - Start with a gentle cleanser to remove overnight sebum and anything on the skin from sleep.
- Hyaluronic Acid Serum ($13) - Apply immediately after cleansing to slightly damp skin. Press gently around the orbital bone using your ring finger. Do not rub or drag.
- 15% Vitamin C + EGF Serum - Apply after the HA serum. Vitamin C works synergistically with SPF to neutralize free radicals before they damage the skin.
- Caffeine Eye Cream ($14) - Pat gently around the eye contour using your ring finger. Tap, do not drag. For an extra depuffing boost, store this in the fridge - the cooling temperature helps constrict blood vessels even further.
- Bio-Active Ceramide Moisturizer ($22) - Apply to lock in your hydration layers and immediately blur the appearance of fine lines.
- SPF - The non-negotiable final step. No exceptions. See what SPF does and why it matters for the full rationale.
Your Evening Routine
PM is when your skin does the heavy lifting. Cell turnover accelerates overnight, and active ingredients like retinoids work in the absence of UV exposure - which can degrade them and make them less effective.
- Cleanse - Double cleanse if you have worn SPF or makeup during the day. A thorough cleanse ensures your actives can penetrate effectively.
- Hyaluronic Acid Serum ($13) - Again, apply to damp skin. This is your hydration foundation for the evening.
- Starter Retinol (beginners) or Advanced Retinal (experienced users) - Apply to the face and gently around the orbital bone. PM only. If you are new to retinoids, start with 1-2 nights per week and increase the frequency gradually over 4-6 weeks as your skin acclimates. Never rush the build-up phase - patience here prevents unnecessary irritation and actually delivers better long-term results.
- Bio-Active Ceramide Moisturizer ($22) - Apply as your final step to seal in hydration, support the barrier overnight, and buffer any retinoid-related sensitivity.
Key Application Tips to Get Results
- Ring finger, always. When applying anything around the eye area, use only the ring finger. It applies less pressure than any other finger, which protects the thin periorbital skin from unnecessary mechanical stress.
- Start retinoids slow. One to two nights per week for the first four weeks. Then three nights per week. Then daily, if your skin tolerates it. Rushing this is the most common mistake people make - and it leads to redness, peeling, and abandoning a product that would have worked.
- Damp skin for hyaluronic acid. Apply your HA serum before your skin dries fully after cleansing. This gives the molecule something to bind to and dramatically improves its effectiveness.
- Fridge your eye cream. Keeping the Caffeine Eye Cream cold is optional, but the cooling effect noticeably amplifies its depuffing action - especially useful on mornings after less sleep.
- Set realistic timelines. Hyaluronic acid plumps visibly within days. Retinoids need 4-6 weeks of consistent use for fine line improvement, and structural wrinkle improvement may take 3-6 months of nightly use. This is not a failure of the product - it is how skin biology works. Collagen remodeling is a slow process.
Before we get to the FAQ, there is one more important distinction to cover - one that confuses a lot of people.
Under-Eye Wrinkles vs. Dark Circles: Not the Same Problem
Under-eye wrinkles and dark circles often appear together, and they can certainly make each other look worse. But they are caused by entirely different mechanisms and require different solutions. Treating one does not automatically treat the other.
Under-eye wrinkles are a structural skin concern. They are caused by collagen and elastin loss, UV damage, dehydration, and repeated facial movement. The skin has physically changed - it has thinned, lost volume, or developed creases.
Dark circles are primarily a vascular, pigmentary, or shadowing concern. They may be caused by melanin hyperpigmentation (particularly common in deeper skin tones), visible blood vessels showing through the thin under-eye skin, hollow tear troughs casting a shadow, or fluid buildup creating a bluish pooling effect. They are not wrinkles, and retinoids will not specifically address them.
The overlap happens because both concerns share the same territory - thin, delicate skin - and both can appear or worsen due to fatigue, dehydration, and age. Using the right product for each concern is how you address both effectively.
- For wrinkles: Starter Retinol or Advanced Retinal at night, hyaluronic acid AM and PM.
- For dark circles and puffiness: Caffeine Eye Cream in the morning.
- Used together in an AM/PM split, these products tackle the full picture.
For a comprehensive guide on what causes dark circles and how to treat them, see our dedicated guide on dark circles and under-eye puffiness.
Frequently Asked Questions About Under-Eye Wrinkles
How do I get rid of under-eye wrinkles?
Use a consistent, layered routine that combines a retinoid at night - Starter Retinol for beginners, Advanced Retinal for those with retinoid experience - with hyaluronic acid on damp skin both morning and evening, and a broad-spectrum SPF every morning without exception. There is no overnight fix, but with the right routine applied consistently, visible fine line improvement typically begins within 4-6 weeks and continues to progress over several months. Consistency matters far more than the frequency or intensity of any single product application.
What causes fine lines under the eyes?
The primary drivers are collagen and elastin decline - which begins in the mid-to-late twenties at approximately 1% per year - cumulative UV damage, chronic dehydration, and repeated facial movements like squinting and smiling. The under-eye area is uniquely vulnerable because the skin there is the thinnest on the face - just 0.3 to 0.5mm, compared to roughly 2mm elsewhere. Less structural support means visible changes arrive earlier and more dramatically than anywhere else.
Can dehydration cause under-eye wrinkles?
Dehydration causes what are known as dehydration lines - fine, crinkly surface lines that appear when the skin lacks water. They can closely mimic the appearance of true wrinkles but are largely reversible with consistent hydration. True structural wrinkles are collagen-driven and slower to improve. The two concerns frequently co-exist, and dehydration reliably makes wrinkles look worse than they structurally are. Keeping the area hydrated with a hyaluronic acid serum is therefore both a cosmetic and a functional intervention. See our dehydrated skin guide for more.
Is retinol safe to use around the eyes?
Yes - when the right formulation is used. The concern about retinoids around the eye area is not unfounded, but it relates to formulation strength and tolerance, not to the ingredient itself. For those new to retinoids, Starter Retinol is the right entry point - gentle, low-strength, and designed to minimize irritation while the skin builds tolerance. For those with an established retinoid routine, Advanced Retinal uses retinaldehyde, a more potent and efficient form of vitamin A. Both should be applied PM only, starting 1-2 nights per week. For a full guide on formulations and safety, visit retinol and how it works.
How long does it take to see results from under-eye wrinkle treatments?
The timeline depends on the ingredient. Hyaluronic acid delivers visible plumping within days - sometimes within hours of application. Retinoids take longer by design. Clinical research shows improvements in photoaging signs beginning around week 4, with continued improvement through 12 weeks of consistent use. Deeper structural wrinkle improvement - involving actual collagen remodeling - may take 3-6 months of nightly application. Patience and consistency are not optional; they are the mechanism by which results happen.
Putting It All Together
Under-eye wrinkles are not inevitable in the way we used to think of them. Yes, collagen declines. Yes, UV damage accumulates. Yes, the skin under your eyes is extraordinarily thin and will always show change before anywhere else on your face. But the science of skin has given us a clear set of tools - ingredients that are genuinely effective, routines that are genuinely achievable - and the gap between what we know and what most people do is simply a matter of information.
Prevention starts in the morning: SPF and Vitamin C to stop UV damage at the source, hyaluronic acid to maintain plumpness, and a caffeine eye cream to manage puffiness and discoloration. Treatment happens at night: a retinoid to stimulate collagen and accelerate cell turnover, layered over hyaluronic acid and sealed with a ceramide-rich moisturizer that strengthens the barrier while you sleep.
Results take consistency, not complexity. A four-step evening routine used every day for six months will outperform an elaborate ten-step routine used sporadically. Start simple. Build from there.
If you are not sure where to begin, take our Skincare Quiz for a personalized routine recommendation - it matches you to products based on your specific skin type, concerns, and experience level.
Shop the Under-Eye Wrinkle Routine
Build your routine with exactly what you need - nothing more:
- Starter Retinol - The ideal PM retinoid for beginners and those with sensitive skin
- Advanced Retinal - A stronger PM retinoid for experienced retinoid users
- Caffeine Eye Cream - $14 - Your AM eye step for puffiness, dark circles, and overall brightness
- Hyaluronic Acid Serum - $13 - Multi-molecular HA for deep and surface hydration, AM and PM
- Bio-Active Ceramide Moisturizer - $22 - Clinically proven to reduce 6 signs of aging in 28 days

Written by one of our askINKEY skincare advisors
Our askINKEY team are available 24/7 on our live chat. A friendly bunch, all experts with deep product knowledge, ready to make skincare as simple as possible. Whether you are an ingredient expert or starting your journey, no question is too big or too small, no judgement or jargon, we’re here to help and be part of your journey.



