LuLuLun Eye Mask: Hydra Eye Filler Overnight Under-Eye Patches

LuLuLun’s overnight eye mask is the Hydra Eye Filler (ルルルン ハイドラ アイ フィラー), a set of under-eye patches that you put on before bed and sleep in. Developed with a pharmaceutical company, it is an oil-serum sheet with retinyl palmitate (a vitamin A derivative), niacinamide, astaxanthin and ceramide NP, and LuLuLun says it keeps the eye area moisturised for up to 6 hours. A pouch of 12 sheets (6 uses) costs ¥1,430 on LuLuLun’s official Japanese shop. LuLuLun also makes a shorter-wear eye and mouth patch, the Precious Parts Mask, which we compare further down.

What you’ll learn in this article:

• What LuLuLun Hydra Eye Filler is, and who it’s for
• Its key ingredients, grouped by LuLuLun’s three approaches
• Its full ingredient list
• How to use it overnight, and how often
• LuLuLun’s other eye-area mask, and how to buy from Japan

What Is LuLuLun Hydra Eye Filler?

LuLuLun Hydra Eye Filler is an eye-area sheet serum for special care, part of LuLuLun’s Hydra line. Instead of an adhesive, its soft oil-gel sheet stays in place through the affinity between its oils and the skin’s sebum, so LuLuLun says it won’t easily come off while you sleep. LuLuLun made it for eyes that look less firm, look tired by the evening or feel dry, and for people who spend long hours looking at a computer or smartphone.

Japanese name	ルルルン ハイドラ アイ フィラー
Name on the pouch	LuLuLun HYDRA-EYE-FILLER
Type	Cosmetic eye-area sheet serum (oil-based)
Price in Japan	¥1,430 for 12 sheets (6 uses) on LuLuLun’s official shop
How it’s worn	Overnight; LuLuLun says it keeps moisture for up to 6 hours
How often	Once or twice a week, as special care (LuLuLun)
Key ingredients	Retinyl palmitate, niacinamide, astaxanthin, acetyl hexapeptide-8, ceramide NP
pH	Not published by LuLuLun

Specs from LuLuLun’s official Japanese product page (as of October 2026; price after LuLuLun’s 1 October 2026 price revision).

• Adhesive-free
• No synthetic colourants
• Alcohol-free

LuLuLun lists the Hydra Eye Filler as free from adhesive, synthetic colourants and alcohol. Its ingredient list contains no water and no parabens.

LuLuLun Hydra Eye Filler Key Ingredients

LuLuLun Hydra Eye Filler’s key ingredients are retinyl palmitate, niacinamide, astaxanthin and acetyl hexapeptide-8 for firmness; panthenol, a vitamin C derivative and tocopherol for dryness-related dullness; and ceramide NP, hydrolyzed collagen and sodium hyaluronate for moisture, plus warming vanillyl butyl ether. The pouch sums this up as three elasticity, three skin-conditioning and three moisturising ingredients with a warm sensation, while the product page lists four firmness ingredients.

LuLuLun says the serum keeps soaking into the stratum corneum while the sheet is on, because the concentrated oil serum on the sheet and the skin create a concentration gradient that draws the ingredients into the skin.

LuLuLun Hydra Eye Filler Ingredients: Full List

LuLuLun Hydra Eye Filler lists 24 ingredients. It is oil-based: squalane, an oil-gel base and olive fruit oil come first, followed by the vitamin C derivative, retinyl palmitate, niacinamide and the moisturising ingredients.

Key ingredient / Worth checking if your skin is sensitive

Ingredient list as published by LuLuLun for ルルルン ハイドラ アイ フィラー (checked October 2026). The English names are our translations of LuLuLun’s Japanese labelling names. The roles of the key ingredients follow LuLuLun’s labels; the others are general descriptions. Formulas can change, so always check the package.

How to Use LuLuLun Hydra Eye Filler

Use LuLuLun Hydra Eye Filler once or twice a week at night, after your usual skincare: place the sheets under your eyes about 5 mm from the eye and sleep with them on.

1. Finish your usual skincare, such as toner and cream.
2. Peel one sheet slowly off the clear film.
3. Place it under your eye, leaving about 5 mm between the sheet and the eye.
4. Press gently with your fingertips so it sits flat against the skin.
5. Repeat on the other eye, then go to sleep with the sheets on.

Don’t reuse a sheet, and close the pouch’s zip firmly after opening. If it’s your first time or your skin reacts easily, LuLuLun recommends testing it on the inside of your arm first; take care to keep it out of your eyes.

Another LuLuLun Eye Patch: Precious Parts Mask

LuLuLun’s other eye-area option is the Precious Parts Mask (ルルルンプレシャス 部分用マスク), a 64-sheet pack of patches for the eye and mouth areas that you leave on for about 10 minutes every two to three days. It contains lecithin, elderflower extract, niacinamide and seaweed extract (Ascophyllum nodosum), and LuLuLun says it has passed an efficacy evaluation test for making fine lines caused by dryness less visible. It costs ¥1,650. For LuLuLun’s Precious face masks, see our LuLuLun Precious guide.

From LuLuLun’s official Japanese product pages (as of October 2026).

Where to Buy LuLuLun Hydra Eye Filler

The easiest way to get LuLuLun Hydra Eye Filler outside Japan is to order it from Japan through kachicollect. Buy from the kachicollect catalog with no proxy fees, and if you can’t find it there, search Japanese stores or marketplaces for ルルルン ハイドラ アイ フィラー and paste the product URL into kachicollect for an instant quote, with no request fee. Duties are shown in your total before you pay, and orders ship worldwide with tracking in about 7 to 14 days.

LuLuLun’s official Japanese shop doesn’t ship overseas or accept credit cards issued outside Japan, according to its FAQ. On marketplaces such as eBay, check the Japanese name and the sheet count.

Proxy services that buy from Japanese stores on your behalf are another option, but the service fee they advertise is only the starting point, and various other charges are added on top by the time you check out.

For every LuLuLun series in one place, from daily masks to the cleansing balm, see our LuLuLun guide.

LuLuLun Eye Mask FAQ

Can I sleep with LuLuLun Hydra Eye Filler on?

Yes. LuLuLun designed it to be worn overnight: it has no adhesive and stays on through the affinity between its oils and the skin’s sebum.

Does LuLuLun Hydra Eye Filler contain retinol?

Not pure retinol. Its ingredient list includes retinyl palmitate, a vitamin A derivative that the Japanese pouch calls a stabilised retinol (安定型レチノール), and LuLuLun lists it as a firmness-and-gloss ingredient.

How long do you leave LuLuLun Hydra Eye Filler on?

Overnight. LuLuLun says you can sleep with it on, and that it keeps the eye area moisturised for up to 6 hours.

Can you reuse LuLuLun Hydra Eye Filler sheets?

No. LuLuLun says not to reuse a sheet once it has been used, for hygiene reasons.

Does LuLuLun Hydra Eye Filler help dark circles or puffiness?

LuLuLun doesn’t make that claim. It describes the sheet as care for firmness, dryness-related dullness and dryness around the eyes.

How often should I use LuLuLun Hydra Eye Filler?

Once or twice a week, as special care. One pouch of 12 sheets covers 6 uses.

Why does LuLuLun Hydra Eye Filler feel warm?

It contains vanillyl butyl ether, a warming ingredient from vanilla beans. If your skin shows redness, itching or irritation, stop using it, as LuLuLun’s usage notes advise.

Do I use LuLuLun Hydra Eye Filler before or after cream?

After. LuLuLun says to use it on skin you’ve already finished with skincare such as toner and cream.

Is LuLuLun Hydra Eye Filler part of the Hydra mask series?

Yes. It shares the Hydra name with LuLuLun’s Hydra face masks; see our LuLuLun Hydra guide for the full series.

Conclusion: Who Is LuLuLun Hydra Eye Filler For?

LuLuLun Hydra Eye Filler suits people who want overnight eye-area care with no extra steps: LuLuLun made it for eyes that look less firm, look tired by the evening or feel dry, and you simply put it on and sleep in it once or twice a week. It is an adhesive-free, alcohol-free oil-serum sheet with retinyl palmitate, niacinamide, astaxanthin and ceramide NP. For the rest of your face, pair it with one of LuLuLun’s daily masks in our Hydra or Precious guides.

The simplest way to get it outside Japan is kachicollect: buy from the catalog with no proxy fees, or paste a Japanese store URL for an instant quote. You pay the item price plus shipping, and duties are shown before you pay.