IT Cosmetics Bye Bye Under Eye Concealer Review

If your dark circles laugh at regular concealers, IT Cosmetics Bye Bye Under Eye is probably on your radar. Here is how it actually performs, who it works for, and the exact application tweaks that make this thick, ultra-pigmented formula look smooth and believable.

Check Price on Amazon

We may earn a small referral fee

Overview

IT Cosmetics Bye Bye Under Eye is a high-pigment, full-coverage concealer in a small squeeze tube. The brand positions it as a one-and-done corrector and concealer that is long wearing and water resistant, with a skin-care-leaning formula that includes ingredients like peptides, hyaluronic acid, and hydrolyzed collagen. In practice, it behaves like a classic full-coverage cream: dense, slightly tacky before it sets, and capable of blanketing very dark circles with a rice-grain amount. The finish is naturally radiant rather than matte, which helps it look fresher under the eyes when you apply it correctly.

Coverage is the headline. This formula covers more than most liquid concealers and rivals pot correctors, yet it is easier to sheer out with the right technique. The shade range is broad enough to find workable matches across fair, medium, and deep complexions, with a mix of cool, neutral, and warm undertones. Packaging is practical: a squeeze tube with a tiny opening that controls how much comes out. The price typically sits in the mid-range for prestige concealers, and one tube lasts a long time because you truly need less than you think.

Who it’s for

Bye Bye Under Eye is a top choice if any of the following sound like you:

• You have pronounced blue-purple or brown under-eye circles that still show through medium-coverage concealers.
• Your under-eye area is normal to dry, or you like a softly radiant finish that does not look flat.
• You want full coverage with minimal layers and prefer a formula that can double as a spot concealer in a pinch.

It can work for mature under eyes, but there are caveats. The density that makes it effective can also emphasize fine lines if you apply too much, do not warm it up, or set it with heavy powder. If you have very oily skin under the eyes or prefer an almost undetectable, weightless look, you may find this too rich unless you mix it with moisturizer. If your dark circles are mild and you only need a quick brightening veil, a lighter serum-like concealer will likely be easier.

How it feels and performs

Texture and blendability: Straight from the tube, the product is thick and a bit sticky. Warmed between fingertips for 5 to 10 seconds, it thins into a cream that spreads more evenly. Tools change the look. Fingers press it in for maximum coverage with minimal product. A small brush places microscopic dots precisely where you need them. A damp sponge softens edges and removes excess if you accidentally applied too much.

Finish: The finish leans natural to radiant rather than flat. On dry or normal skin, this is flattering and reduces that papery look some matte concealers cause. On oilier skin, the radiance can read shiny by midday unless you set it.

Coverage: High to full. On blue-purple circles, it cancels darkness without first using a separate corrector, as long as you concentrate the pigment at the inner corner and along the trough. For brown hyperpigmentation, it helps to choose a slightly warmer or peach-leaning shade within your depth to counter the shadow. Because it is so pigmented, overapplication looks heavy. The sweet spot is a rice grain split between both eyes, with micro-dotting method.

Creasing and settling: Any concealer will collect in fine lines if too much is applied or it is not blended into warm skin. This one is no exception. Used sparingly and pressed into the skin, then lightly set if needed, creasing stays minimal. Baking or heavy powdering tends to age the under eye with this formula. A whisper of translucent powder through the crease line is enough.

Longevity: It holds up through an 8 to 10 hour workday with proper prep. On dry skin without powder, it stays flexible and slightly dewy. On combination or oily skin, set it strategically and do a quick midday press with clean fingertips to refresh. It resists humidity and light splashes well, but like any cream, friction from rubbing your eyes will break it down.

Sensitivity: There is no strong scent. Most users with sensitive eyes tolerate it, but patch test if you are prone to irritation. The tackier texture means you should avoid layering it over heavy silicone primers that can cause slip and separation.

How to use for best results

This is a formula that rewards restraint and technique. Here is a simple routine that consistently looks smooth and bright rather than heavy.

1. Prep lightly: Apply a thin layer of a non-greasy eye cream or gel 10 minutes before makeup, then blot away excess. If your eye cream is rich, the concealer will slip and grab in patches.
2. Choose your placement: Focus on where darkness is most visible, usually the inner corner, the shadowed groove of the under-eye trough, and a small area 1 to 2 inches outward. Leave the smile lines bare or very lightly covered to avoid buildup.
3. Warm a rice grain amount: Dispense a tiny dot, about the size of a rice grain for both eyes. Warm it between ring fingers until it feels creamier and slightly more fluid.
4. Micro-dot and press: Tap three or four micro-dots at the inner corner and along the deepest part of the circle. Press and roll with your fingertip to spread the pigment thinly. If you prefer a brush, use a small synthetic detail brush to place dots, then fingertip-press to meld it with the skin.
5. Soften edges with a damp sponge: Bounce a damp sponge once or twice around the perimeter to erase edges without removing coverage where you need it.
6. Set strategically: If you crease easily or have combination skin, pick up the barest amount of loose translucent powder on a small fluffy brush. Smile gently, then tap powder only where the skin folds, and along the inner corner where glasses might touch. Avoid baking. If you are very dry, skip powder entirely.
7. Customize the formula: For a sheerer, more everyday look, mix a pinhead of concealer with an equal amount of eye cream or unscented moisturizer on the back of your hand. For spot concealing blemishes, mix a pinhead of product with a drop of mattifying primer, tap on the spot, and set with powder to lock it down.

Shade and undertone tips: If your circles are blue or purple, a slightly warmer or peach-leaning shade within your depth counteracts the hue. If your circles are brown, stay close to your skin tone with a neutral or golden undertone to avoid an ashy cast. If you fall between shades, you can mix on the back of your hand. Remember that the coverage is high, so a close match is better than going a full shade lighter. You can add brightness later with a touch of lighter liquid concealer on top if desired.

Pros and cons

• Pros: Extremely high coverage with a tiny amount, natural radiant finish that looks alive on dry or normal skin, flexible wear that resists humidity, doubles as a corrector for many blue-purple circles, a tube lasts a long time, travel-friendly packaging that controls the dose.
• Cons: Thick texture requires warming and careful blending, can crease or look heavy if overapplied, radiant finish may read shiny on oily skin without powder, shade matching can be tricky because of high pigment, not the fastest option if you prefer swipe-and-go liquids.

Final verdict

IT Cosmetics Bye Bye Under Eye is a powerful tool for stubborn under-eye darkness. When you use a rice-grain amount and press it into well-prepped skin, it delivers full coverage that still looks like skin. The texture demands a bit more technique than a thin liquid, and it does best with minimal powder and strategic placement. If you have moderate to severe circles, normal to dry under eyes, or want a single product that can stand in for a corrector, it is absolutely worth it. If your under eyes are very oily, you dislike any tackiness, or you prefer an almost invisible wash of coverage, consider a lighter, serum-like alternative for daily use and reserve this one for higher-stakes days.

See also

Comparing full-coverage options? Read our Tarte Shape Tape Concealer Review for a matte, locked-in finish, and our Maybelline Instant Age Rewind Concealer Review if you want fast brightening with less thickness. For step-by-step undertone advice and picks by issue, see our guide to the Best Concealer for Dark Circles.

If you prefer a hydrating, flexible texture, our NYX Bare With Me Concealer Serum Review covers how a serum formula compares. And for lines-first concerns, our roundup of the Best Hydrating Concealers for Mature Under Eyes narrows choices that stay smooth on delicate skin.

FAQ

How much IT Cosmetics Bye Bye Under Eye should I use to cover dark circles without creasing?

Start with a rice-grain amount for both eyes. Warm it between your fingers for a few seconds, tap three or four micro-dots only where darkness is deepest, then press and roll to blend. If you see texture, you likely used too much. Remove excess by bouncing a damp sponge once or twice over the area rather than adding powder.

Does IT Cosmetics Bye Bye Under Eye work on mature under eyes with fine lines?

Yes, with technique. The radiant finish can be flattering on mature skin, but the dense texture means you must keep layers thin. Prep with a lightweight eye cream, apply a tiny amount, press it in, and set only where lines fold with a whisper of translucent powder. Avoid baking and avoid dragging the product across the skin.

Is the formula really water resistant and how does it wear through a workday?

It holds up well to humidity, light tears, and long days when applied thinly and set strategically. Expect 8 to 10 hours of presentable wear. It will not survive vigorous rubbing, but it does better than average against sweat and humidity, especially if you place coverage only where needed and avoid heavy layers.

What shade should I choose for blue-purple versus brown under-eye circles?

For blue or purple circles, pick a shade in your depth with a touch of warmth or peach. For brown or gray-brown circles, stick close to your skin tone in a neutral or golden undertone to avoid an ashy look. Because coverage is high, err on the side of matching rather than going very light. You can add a pinpoint of a lighter liquid concealer on top to brighten the center if needed.

Can I use IT Cosmetics Bye Bye Under Eye to spot conceal blemishes?

You can, but tweak the texture. Mix a pinhead of product with a drop of mattifying primer to reduce radiance, tap it on the spot with a small brush, let it sit 10 seconds, then tap the edges to blend and set with a touch of powder. For raised blemishes, keep layers very thin so the product does not gather around the bump.

As an Amazon Associate, we earn from qualifying purchases made through links on our site.