An eye serum is a small product with a small job, and it is surprisingly easy to use badly. Too much goes on, some of it drifts into the eye and stings, the rest gets rubbed in with a fingertip that drags the thinnest skin on the face, and then a moisturizer goes on top before any of it has absorbed. A month later the verdict is that it did nothing. This page fixes the method. It covers where the under-eye actually is, how much to use, how to work the metal tip, what order the serum goes in, how morning and night differ, and the handful of habits that quietly waste the product. It sits under the eye serum guide, which covers whether a serum is the right choice for your under-eyes in the first place.
What you need
- The serum. The EYE Serum ships with a metal-tip applicator, which does most of the work described below.
- Clean, dry skin, meaning nothing damp on it and no fresh moisturizer.
- Thirty seconds and a mirror. The mirror is optional after the first week.
- A phone, once, for the day-one photo by a window.
Where the under-eye actually is
Before the first application, find the bone. Close one eye and press a fingertip gently below it. You will feel the rim of the eye socket, the orbital bone, running in a curve from the inner corner near the nose to the outer corner near the temple. Use that curve as the guide. Eye serum goes on the skin over and just below that bone, and stays out of the soft hollow right beneath the lashes. The skin there is so thin and so mobile that anything applied to it migrates upward on its own within minutes. Applied along the bone, the product travels upward on its own. Applied at the lash line, it travels into the eye. This one adjustment prevents most stinging and most of the watery-eye mornings people blame on the formula.


The serum this guide is about
EYE Serum
Caffeine and platelet-derived exosomes with a cooling metal tip, for brighter-looking under-eyes.
$138. Free shipping. Refill and save $14.
The routine, in six steps
1. Cleanse and pat dry
Serum goes on clean skin. Wash your face as usual, rinse well, and pat the under-eye dry with a towel. Do not rub. Water left on the skin dilutes the serum, and leftover cleanser can sting once it is trapped under a product. If you use a toner or essence, let it fully absorb first; the skin should feel dry to the touch, not tacky.
2. Dispense a small amount
The right dose per eye is about the size of a grain of rice. It looks like too little, which is everyone's first reaction, but it is enough. The under-eye is a few square centimeters of skin, and a concentrated serum spreads thin. Dispense the amount onto the metal tip itself, or onto the back of your hand if you prefer to see it first. A bigger dose pools, migrates and wastes the tube. How much eye serum should I use? goes into the dosing question in detail.
3. Dot it along the bone
Touch the tip to the skin at three points along the orbital curve: near the inner corner, at the center under the pupil, and near the outer corner. The metal will feel cool. That coolness is deliberate; it is part of what makes the under-eye look less puffy in the morning, so do not warm the applicator in your hand first.
4. Sweep from inner corner to outer corner
With the flat of the tip against the skin, sweep slowly from the inner corner outward along the bone toward the temple. Light pressure, the weight of the applicator and not much more. Then sweep back. Three or four passes per eye. This direction matters because it follows the way fluid drains from the under-eye, so the massage helps the fluid on its way rather than pushing it toward the nose. If you have the applicator, this replaces your fingers entirely. If you are applying with fingers, use the ring finger, which is the weakest, and tap instead of dragging.
5. Tap the edges
Finish with a few light taps of the ring finger along the outer corner and the top of the cheekbone, where crow's feet start. Tapping settles the product without stretching skin. Leave the lash line alone. Can you put eye serum on your eyelids? answers the question everyone eventually asks.
6. Wait a full minute
The serum absorbs quickly, but give it sixty seconds before anything else touches the area. Then moisturizer if you use one, then sunscreen in the morning, then makeup. Layering too soon dilutes the serum and encourages pilling under concealer. Sixty seconds is about the time it takes to brush your teeth, so do that while you wait.
- Pat dryClean skin, no moisturizer yet. Towel, not rubbing.
- Dot the boneA grain of rice per eye at three points along the orbital curve.
- Sweep outwardInner corner to temple with the cold tip, light pressure, three or four passes.
- Wait a minuteThen moisturizer, sunscreen, makeup. Brush your teeth while it absorbs.
Where it goes in the order
Skincare works best thinnest to thickest. The eye serum is one of the thinnest things you will put on your face, so it goes early.
- Cleanser, then pat dry.
- Toner or essence, if you use one. Let it absorb.
- Eye serum, along the bone, as above.
- Face serum, avoiding the under-eye if it contains acids or a strong retinoid.
- Moisturizer, and eye cream if you use one. Cream goes on top of the serum once it has dried.
- Sunscreen in the morning, all the way to the lower lash line.
- Makeup.
The eye cream question comes up constantly. The short answer is that the serum delivers the actives and the cream seals in moisture, so if you use both, serum first and cream second. If you put the cream on first, the serum sits on top of an oily layer and mostly evaporates. The hub guide covers when you need both and when the serum alone is enough.
Morning versus night
The method is the same at both ends of the day, but the goal is different, and it changes a couple of details.
Morning
The morning application is about the look of puffiness. Fluid has pooled overnight, and the combination of caffeine, the cold tip and the outward sweep is what moves it along. Make the sweeps a little slower and a little more deliberate. Give the serum its minute, then sunscreen, then concealer. Concealer tends to sit better over the serum than over bare skin, because the surface is smoother and cooler.
Night
At night the goal is the slow work. Skin is undisturbed for hours, there is no makeup on top, and this is when the platelet-derived exosomes have the longest uninterrupted contact with the skin. The sweep can be quicker. If you use a retinoid on the face, apply the eye serum first, then the retinoid elsewhere, and keep the retinoid off the under-eye until you know how the area tolerates it. If your skin is dry, this is the application to top with a cream.
The full two-minute version of each, including what to do on the mornings you have overslept, is in a morning and night under-eye routine that takes two minutes.
Can you reapply during the day?
You can, and on a long day it is a reasonable thing to do, but it is rarely necessary. The cooling and tightening feel from the caffeine and the cold tip lasts for hours, and the slow work does not speed up with a third dose. If you want a midday refresh before an evening out, apply it to skin you have cleansed first; a serum sweeps concealer around rather than absorbing through it. Remove makeup from the under-eye with a gentle cleanser or micellar water, pat dry, and apply as usual. Keep the applicator tip clean between uses by wiping it with a tissue; the metal picks up less than a fingertip does, but it still touches your skin twice a day.
Mistakes that waste the product
- Applying at the lash line. It migrates into the eye and stings. Stay on the bone.
- Using too much. A grain of rice per eye. Extra pools in the inner corner and ends up on your pillow.
- Rubbing it in with a fingertip. The under-eye does not need friction. Sweep with the tip, or tap with the ring finger.
- Warming the applicator first. The cool metal is part of the method, so leave it cold.
- Layering moisturizer straight on top. Wait the minute, then put the cream on top.
- Judging it at day five. The immediate effects, cooler and less puffy-looking skin, show in minutes. The cumulative effects on the look of firmness and fine lines take weeks and need photos to judge fairly.
- Doubling up after a missed day. Just resume. More product on one day does not catch you up.
Do
- Stay on the orbital bone
- Use the cold tip, straight from the shelf
- Wait sixty seconds before anything goes on top
- Judge from four-week photos
Don't
- Apply at the lash line
- Rub it in with a fingertip
- Layer cream straight over it
- Double up after a missed day
Using it with other actives
The EYE Serum has no acids and no exfoliant, so it does not stack irritation with most routines. Vitamin C serums, niacinamide, peptides and hyaluronic acid all sit comfortably alongside it. Retinoids deserve a little more care only because the under-eye is where retinoid dryness shows first; serum first, retinoid after, and a cream on top if the area feels tight. If a dermatologist has prescribed a treatment for the skin around your eyes, ask them how to sequence a cosmetic serum with it rather than guessing, and do not stop the prescribed product to make room.
If the skin reacts
Cosmetic products should feel like nothing, or like a moment of coolness, and then be forgotten. A brief tingle from the cold tip is normal. Stinging that lingers usually means product reached the eye; rinse with water and use less next time, further from the lashes. Redness, itching, swelling, flaking or a rash that appears after starting any new product is a reason to stop and, if it does not settle in a day or two, to see a dermatologist. Bring the box so they can read the ingredient list. Sudden swelling in one eye, pain, or a change in vision is a doctor question on the same day, whatever you did or did not apply.
How to know it is working
Under-eye changes are gradual and you look at the area too often to notice them. So do not rely on the mirror. Take a photo on day one: morning, no makeup, facing a window, phone at eye level, face relaxed. Take the same photo every four weeks and put them side by side. The American Academy of Dermatology's advice on anti-aging products applies exactly here: focus on one concern, give it a fair run, and judge from evidence rather than from how you feel about the product on a given morning. Which concern you are watching, puffiness, shadow or lines, is sorted out in puffiness, dark circles or fine lines: which one you have and what helps, and what each ingredient is doing while you wait is in eye serum ingredients, explained one by one.
Take the day-one photo before the first application: morning, no makeup, facing a window, phone at eye level. Every later photo is measured against it.
The one-line version
Clean dry skin, a grain of rice per eye, sweep the cold tip from inner corner to outer corner along the bone, tap the edges, wait a minute, then the rest of your routine. Morning and night. Photo every four weeks. That is the whole method. Start with the EYE Serum, and if you are still deciding between a serum and a cream, go back to the full guide.