PRP vs Filler for Under Eyes
Filler is the established treatment for a hollow under the eye. A hyaluronic acid gel fills the groove, the shadow softens, and you see it the same day. PRP is aimed at skin quality rather than volume. It uses your own blood to nudge the skin to look thicker and smoother over a course of visits, and the evidence for it under the eyes is thinner. If you can press the hollow and feel a dip, filler is the treatment that addresses it.
What is in the syringe
Blood is drawn from your arm and spun to separate the platelet-rich part. That part is injected back.
A soft, thin filler gel. Hyaluronic acid is a sugar your skin already makes.
What it actually treats
Thin, crepey skin and fine lines under the eye. It can make the skin look less see-through.
A true groove between the lower lid and the cheek. Filling it removes the shadow that reads as a dark circle.
What it will not do
PRP adds no volume. A deep tear trough stays a deep tear trough.
If the darkness is brown skin colour rather than shadow, filler will not lighten it.
When you see the result
Nothing on the day. The change is gradual and often subtle.
Swelling is common in this area and can look worse before it looks right.
How many visits
Spaced four to six weeks apart, then a top-up once or twice a year.
Sometimes a small second appointment a few weeks later to even it out.
How long it lasts
Can it be undone
There is nothing to remove. It wears off.
Hyaluronidase dissolves it in a day or two. That is a real advantage in an area this fussy.
Side effects to expect
This skin bruises easily. Expect a few days of it.
Lumps, a bluish tinge and lasting puffiness are the specific complaints in this area.
Cost
Ask for the price of the course, not one visit.
Often half a syringe per side. Usually one bill.
The at-home or drugstore version
Nothing you can buy takes your own platelets and places them inside the skin. Eye creams work on the surface.
No cream fills a groove several millimetres deep. A caffeine eye cream can reduce puffiness for a few hours, which is a different problem.
Who each suits
The under-eye is the least forgiving area on the face
The skin here is the thinnest on the body, and there is almost no fat under it: Anything placed too shallow can show as a lump or a bluish line, and hyaluronic acid draws in water, so a little too much reads as puffiness.
Problems here also last: Filler in this area moves very little, so a poor result can sit there for a year or more before it fades on its own.
That is exactly why reversibility matters here: A bad under-eye result can be dissolved within days. Hyaluronidase is the enzyme that does it. Nothing permanent in this spot gives you that way out, and under the eye is where you most want one.
Work out what your dark circle actually is
Shadow from a hollow is what filler fixes: Tilt your head back and look in a mirror with light from above. If the darkness lifts as the light changes angle, it is a shadow.
Pigment does not lift when the light moves: Brown discolouration is treated with creams, sun protection and sometimes lasers. Filler placed under pigment can make the area look worse, not better.
Thin skin showing the blue of blood vessels is a third thing: That is the case where a skin-quality treatment such as PRP is a reasonable choice, because the aim is a slightly thicker, less see-through surface.
The evidence is not even between them
Filler for a hollow under the eye has been used and studied for years: The result is predictable enough that most injectors can tell you roughly what you will look like before they start.
PRP under the eye has much thinner evidence: Small studies report improvement in skin texture and tone, but the work is limited and the results reported are modest. No trial settles whether it beats doing nothing over the same period.
Nobody has run a fair head-to-head: They are aimed at different problems, so a direct comparison would struggle to pick a single measure that suits both.
Before you book
Ask which of the three causes you have: shadow, pigment or thin skin. The answer decides the treatment.
Ask how many syringes or sessions the plan involves and what the total is.
Ask how many under-eye treatments the injector does in a typical month.
Check they keep hyaluronidase on site if filler is the plan.
Photograph yourself in daylight first. This area looks different under every light.
