Dark Circles, Eye Bags & Tear Troughs

The skin under the eyes is where tiredness, health problems, stress and ageing tend to show first. These can manifest as dark circles, eye bags, tear troughs or a combination. However, each of these under-eye concerns has its own cause and its own best treatment. So working out which one you have matters more here than almost anywhere else on the face. For example, dark circles often respond well to the right actives, whilst bags and hollows usually need something more. In this guide we explain what causes each of these under-eye concerns and how to treat them. We review the best treatment options from everyday skincare through to surgery.

City Skin Clinic is an online skincare clinic. We provide and prescribe medical skincare and do not offer injectable treatments (dermal fillers or anti-wrinkle injections), energy-based devices or surgery. However, we have explained all the options below because we believe the public deserve clear, evidence-led information without commercial bias.

What’s the Difference Between Dark Circles, Eye Bags and Tear Troughs?

These three under-eye concerns look similar but come from completely different things. Dark circles are mainly a problem of colour, where the under-eye looks darker than the surrounding skin. This can be pigment in the skin, or blood vessels showing through skin that is naturally very thin. Eye bags are a problem of soft tissue projecting too far forward. The small pad of fat that cushions the eye bulges through weakened tissue, often with fluid puffiness on top. Tear troughs are the opposite and are a sign of face volume loss. The groove between the lower eyelid and the cheek deepens into a hollow that throws a shadow. That shadow is often mistaken for a dark circle, but it is structural rather than pigment. Many people have a mix of all three. This is why the under-eye is so tricky to treat and why tailoring the treatment to the cause matters.

What Causes Under-Eye Concerns?

Each of the three concerns has a different cause, and dark circles are the most varied. Research divides dark circles into a few types, and most people have a mix. The main causes of dark circles are:

• Excess pigment: Excess melanin in the under-eye skin creates a brown tint. This hyperpigmentation is more common in deeper skin tones and can be driven by genetics, sun exposure or repeated rubbing of the area.
• Visible blood vessels: The skin under the eyes is the thinnest on the face. So the blood vessels beneath can show through as a blue or purple tint. Tiredness, poor sleep and nasal congestion all make this more obvious.
• Thin, crepey skin: Collagen declines from the mid-20s, so the under-eye skin thins further. The vessels and shadows beneath then become easier to see.
• Shadowing: A tear trough hollow or a puffy bag casts a shadow that reads as darkness, even when there is no extra pigment. This is structural, not a stain on the skin.

Eye bags and tear troughs have structural causes rather than ones skincare can change. An eye bag forms when the membrane holding back the eye’s fat pad weakens and the fat bulges forward. A tear trough forms as the cheek loses volume and the bone beneath the eye recedes, deepening the groove until it casts a shadow. How prominent any of these are comes down to your skin tone, your genetics, your sleep and your sun exposure.

How are Under-Eye Concerns Treated?

Treating the under-eye starts with knowing which problem you are dealing with, because each responds to something different. Research shows the type guides the treatment. Pigmented dark circles are the ones skincare helps most, since brightening actives can fade the colour over time. Dark circles from visible vessels or thin skin respond more modestly to skincare. Under-eye hollows cannot be lifted by any cream because the issue is missing volume rather than colour. These often need some sort of filling. Similarly, true eye bags from bulging fat are structural and usually need a surgical procedure. We look at what helps each below, starting with skincare.

Can Over-the-Counter Skincare Improve Under-Eye Concerns?

Under the eye, regular skincare is mainly useful for mild dark circles and thin skin. It can fade pigment and strengthen the skin but it cannot lift a bag or fill a hollow. The actives worth considering for brightening and improving quality of the skin in the under-eye area are:

• Vitamin C: This antioxidant brightens the skin and helps fade pigment, and it protects against the sun damage that darkens the area. A lower dose or gentler formula is usually best for the delicate eye skin best.
• Niacinamide: This ingredient helps limit the transfer of pigment to the skin’s surface and supports the barrier. It can also soften brown discolouration over time.
• Retinoids: These build collagen and thicken the under-eye skin, which both fades pigment and makes vessels less visible. There are many strengths of retinoid, and around the eyes they are best introduced slowly to avoid irritation or dry eyes.
• Caffeine & hydration: Hyaluronic acid and peptides plump and smooth the skin, whilst caffeine eye creams can temporarily reduce puffiness and the look of shadows.
• Sunscreen: A daily broad-spectrum SPF 30 around the eyes is essential, because UV deepens pigment and breaks down the collagen that keeps the skin from thinning.

What Can Prescription Skincare Do for Under-Eye Concerns?

Prescription anti-ageing skincare also works on the colour and quality of the skin. Actives like Tretinoin speeds up cell turnover and builds collagen. This helps improve wrinkes, hyperpigmentation and skin texture. For pigmented dark circles it is often paired with hydroquinone which is the most effective topical for fading excess melanin. The under-eye skin is thin and sensitive though, so these need careful introduction. It is the reason actives like tretinoin and hydroquinone are only available on prescription.

What prescription skincare cannot do is fill a hollow or remove a bulging bag, since those are structural. It works on colour and skin quality. So it is best for genuine pigment and for strengthening thin under-eye skin alongside whatever treats the structure.

Which Non-Surgical Treatments Work Best for Under-Eye Concerns?

Once you move beyond skincare, the right non-surgical treatment depends entirely on which under-eye problem you have. The main non-surgical treatments for under-eye concerns are:

• Tear trough filler: For a hollow that casts a shadow, hyaluronic acid filler can provide an immediate and temporary improvement. A small, carefully placed amount replaces the lost volume and lifts the groove so it no longer shadows. Research shows it has high satisfaction rates when done correctly. However, the under-eye is a delicate area with a high risk of complications.
• Skin boosters & microneedling: Skin boosters and microneedling improve the quality of the under-eye skin by stimulating collagen. This thickens thin, crepey skin and can make fine vascular dark circles a little less obvious over a few sessions.
• Lasers & peels: For pigmented dark circles and thin skin, certain lasers and chemical peels can break down excess melanin and stimulate collagen. However, these tackle colour and texture rather than hollows or bags.
• Bag treatments: True eye bags from bulging fat are not well suited to injectables. Where a bag is mild, some practitioners use a little filler to blend it into the cheek, but the definitive options are surgical.

When is Surgery the Best Option for Under-Eye Concerns?

Surgery is the definitive answer for true eye bags and deep tear troughs. As the eye ages, the membrane that holds back the fat pad weakens and the fat bulges forward into a permanent bag. No cream or injection can put that fat back. The lasting fix is a lower blepharoplasty, which removes or repositions the fat and trims loose skin. It is also the option for heavy, hooded lower lids. Surgical fat grafting either alone or in combination with a face lift is the definitive approaches for significant tear troughs. It can help restore lost facial volume and smooth under-eye hollows. Surgery however does not treat hyperpigmentation. As such, dark circles from colour still need prescription skincare, peels or laser. Unfortunately any surgery carries risks and a recovery period so it is essential to consult with an experienced oculoplastic surgeon.

Can You Prevent Under-Eye Concerns?

You cannot prevent every under-eye change, especially the genetic and structural ones, but several habits make a real difference. Daily broad-spectrum sunscreen matters most for dark circles, since research shows it prevents measurable skin ageing and limits the pigment and thinning that darken the area. Good sleep and managing allergies reduce the fluid puffiness and congestion that make circles and bags look worse. Try not to rub the eyes, since this can darken the skin and weaken it over time. Staying hydrated, not smoking and starting a gentle eye-care routine early all help keep the under-eye looking fresher for longer.

At City Skin Clinic, our doctors create personalised skincare to target the signs of ageing and hyperpigmentation using actives like tretinoin and hydroquinone where appropriate. Every plan starts with an online consultation built around your skin and your goals. Start your online consultation today. The journey towards great skin starts here.

This article is intended for general informational purposes only and is not a substitute for medical advice, diagnosis or treatment. Always consult a qualified medical professional with any concerns about your skin or treatment options.