Dark Circles
Under-eye darkness is a shadow, and shadows have causes. Working out whether yours comes from a hollow, from thin skin, from pigment or from puffiness is the whole decision, because the treatment for one can worsen another.
What causes under-eye darkness
Four causes, almost always in combination, which is why single-treatment plans so often miss.
A hollow. The groove where the lower lid meets the cheek casts a shadow in overhead light. This is a structural deficit, and it is the one cause filler genuinely addresses.
Thin skin. The skin here is the thinnest on the face, and underlying vessels show through it as a bluish or purple tone. Nothing has gone wrong; there is simply not enough tissue covering what is beneath.
Pigment. Brown discolouration in the skin itself, from genetics, sun exposure, or inflammation from rubbing and eczema. Common and frequently the dominant cause in darker skin tones.
Puffiness and fluid. Swelling above the shadow creates a step, and a step creates a shadow. Some of this is daily fluid shift; some is a longer-standing change in the fat and support around the eye.
Two contributors sit behind all of them. Allergy and rubbing darken the area through repeated inflammation, and the itch-rub cycle can undo any treatment. Sun exposure thins the skin and drives pigment simultaneously.
How to tell which cause you have
Three observations at home are genuinely informative.
Stand in front of a mirror and tilt your chin down, then up, while keeping your eyes on your reflection. If the darkness deepens and lightens as the light angle changes, you are looking at a shadow cast by contour. If it stays put, it is colour in the skin.
Stretch the skin gently sideways with a fingertip. Pigment stretches with the skin and remains visible. A shadow from a hollow disappears.
Press very gently. Blue-toned darkness that pales under pressure is vascular; brown that does not change is pigment.
None of that is a diagnosis. A consultation examines the same things under proper lighting, checks skin thickness and how much fluid the area holds, asks about allergy, sleep and previous filler, and looks at whether the cheek beneath has flattened — because a hollow is often a cheek problem presenting as an eye problem.
What addresses each cause
| What is causing it | What the treatment category is |
|---|---|
| A defined hollow | Carefully placed under-eye filler, or filler supporting the cheek behind it |
| Thin, crepey skin | Regenerative injectables in a course — Rejuran, Juvelook or other skin boosters |
| Pigment in the skin | Gentle pigment-targeting laser work plus daily sun protection |
| Vascular tone showing through | Improving skin quality so less shows through; expectations kept modest |
| Daily fluid and puffiness | Habits first — sleep position, salt, alcohol — before any procedure |
| Structural bags | A doctor’s assessment; injections are not the answer for a true protrusion |
| Laxity and crepiness in the lid skin | Ultrasound lifting around the area where appropriate, discussed carefully |
The skin booster versus filler comparison is worth reading before this consultation, because the two get confused here more than anywhere else on the face.
What does not help
Filler for pigment or thin skin. It adds volume where the problem is colour or quality. The result is often a slightly puffy under-eye that is still dark.
Filler when the area already holds fluid. Hyaluronic acid attracts water. If your eyes puff in the mornings, this is the wrong starting point and the puffiness can last well beyond the expected duration of the product.
Strong lasers on the under-eye. The skin is thin and the area is unforgiving. Pigment work here is done gently or not at all.
Eye creams for a hollow. No topical product changes contour. Creams help surface quality and nothing structural.
Lifting devices for darkness. Tightening does not remove a shadow cast by a groove.
Rubbing. It is the one thing you are doing that actively worsens pigment, and if there is an allergic cause behind the rubbing it is worth addressing that first.
Realistic timeline and how many sessions
Filler shows immediately, swells, and reads properly at about two weeks — which is when any adjustment should be made rather than on the day. Booster courses run three to four sessions, two to four weeks apart, with the change appearing over one to two months. Pigment work is three to five gentle sessions and is slow here by design.
Where several causes are present, they are usually treated in sequence rather than at once, so a full plan can span three to six months.
What to ask at the consultation
- How much of my darkness is shadow and how much is colour?
- If you would use filler, how much, how deep, and do you keep a dissolving agent on site?
- What would you not do in my case, and why?
- What order would you treat these causes in?
- If there is only a small improvement at two weeks, what happens next?
FAQ
Will filler fix my dark circles?
Only if a hollow is casting the shadow. Filler placed into thin or pigmented skin with no hollow tends to add puffiness without removing the darkness, and the under-eye is where that mistake persists longest.
Why do mine look worse some mornings?
Fluid shifts overnight, and salt, alcohol and poor sleep all show here first because the skin is thin and the tissue holds water readily. Darkness that varies day to day has a fluid component.
Can anything be done about genuinely thin skin?
Skin quality can be improved so that less shows through, using regenerative injectables in a course. It is a gradual change rather than a transformation, and it is the honest answer for this cause.
What if I have bags rather than circles?
Protruding under-eye bags are a structural matter that injections do not remove, and are sometimes addressed surgically. Whether that applies to you is a question for a doctor who has examined you.