CLIO Sharp So Simple pencil eyeliner: five thin upper-lashline steps
Use a Korean CLIO pencil-liner example to build a thin upper lashline without lining the eye's inner rim.
CLIO's Korean official shop lists Sharp So Simple Waterproof Pencil Liner separately from brush and pen liners. A December 2021 original demonstration by thefashionceesta shows a gifted CLIO pencil product and includes affiliate links; it is a commercially connected creator opinion, not a brand-owned independent performance study. Its color or waterproof claims should not be assumed to apply to current regional versions. This guide keeps application to external upper-lashline skin, not the inner waterline. **Eye-health context:** An ophthalmologist at The Ohio State University Wexner Medical Center explains that eyeliner applied on the inner waterline can block eyelid oil glands or enter the tear film. A 'waterproof' product name is not permission to apply it on that inner rim. **Current ophthalmology guidance (Oct 27, 2026):** The American Academy of Ophthalmology advises keeping eyelids clean, applying cosmetics outside the lash line rather than along the inner waterline, and avoiding shared store testers where possible. This is general eye-care guidance, not a safety test of this CLIO pencil.
Try it yourself
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01
Check the current CLIO pencil product
Check that your product is CLIO Sharp So Simple Waterproof Pencil Liner, not a pen or brush liner. The Korean CLUBCLIO product page currently lists 0.14 g and a six-month period after opening; these are Korean listing details, not promises about versions sold elsewhere. Follow your own package's expiry, shade, and eye-area directions. **Distinguish the package period from eye-hygiene advice.** The Korean listing states six months after opening, while the American Academy of Ophthalmology (AAO) recommends the more conservative practice of replacing eye makeup after three months in its October 27, 2026 general guidance. This is not a CLIO-pencil-specific shelf-life test or a universal legal expiry date. Nor does the six-month listing guarantee an uncontaminated product. Note the opening date, follow your actual packaging, and discard sooner for contamination, changed smell, color or texture, or an eye infection.
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02
Prepare clean tools and avoid the inner rim
Wash hands and sit at a stable mirror with a clean, smooth pencil. Do not apply into the eye or on the inner waterline. Skip application while eyes are inflamed or painful. Distinguish the moist inner rim behind your lashes from the outer skin above the lashline; use the outer skin. Do not apply a shared store tester directly to your eyes. It is safer to avoid such testers; if sampling is essential, only use a fresh, single-use applicator.
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03
Connect small strokes beside upper lashes
Without tugging hard, draw short strokes along outer skin immediately above the upper lashes. The Korean brand instructions say to extend only a little of the soft pencil tip to help prevent crushing or breakage. An older creator demo does not guarantee current color or waterproof wear. Ophthalmologist guidance cautions against lining the inner waterline, which can obstruct eyelid oil glands.
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04
Soften and correct an overly heavy line
If the line looks too strong, lightly blend its border with a clean small brush or carefully use a cotton swab with eye-safe remover.
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05
Inspect with eyes open and remove at night
Relax your eyes, compare both sides, and later remove gently using suitable eye-area remover. Do not share liners, and stop for irritation. If you develop an eye infection, discard the eye cosmetics you were using when it occurred, and avoid eye makeup until the area has healed, as FDA advises. If you wear contact lenses, remove them before taking off your eye makeup. This is general ophthalmologist advice, not a product-specific CLIO instruction. The Korean product listing's 'six months after opening' is not a reason to keep using a contaminated pencil. Discard eye cosmetics used during an eye infection regardless of the indicated period.
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✓ You finished the tutorial!
CLUBCLIO Korea official store
A link to the original source. Any source-provided preview stays with that source; no image or article text is extracted separately.Mona Adeli, MD · Ohio State Wexner Medical Center
A link to the original source. Any source-provided preview stays with that source; no image or article text is extracted separately.✦ Helpful tips
- The 2021 original creator disclosed gifted product and affiliate links; it is not a CLIO brand-owned source or an objective wear trial.
- Shade numbers, formulas and stock may differ between the Korean store and other markets.
- The Korean official page checked on October 31, 2026 advertises a '2EA/NEW colors' bundle. Check the number of items, your actual packaging, and period after opening rather than treating a promotional bundle as a universal product specification.
ⓘ Keep in mind
- Keep the pencil off the eye's inner rim and eyeball, and never apply eye makeup in a moving vehicle.
- Stop for pain, infection or redness and seek medical care if symptoms persist.
- A 'waterproof' label does not establish safety for the inner waterline. Stop use and seek eye care for pain or changes in vision.
Original sources 6
These are research sources, not verification of real-world product results.
- How To Apply Eyeliner Makeup With Expert Tips ↗Maybelline New York · Source checked 2026-10-27
- Eye Cosmetic Safety ↗U.S. Food and Drug Administration · Source checked 2026-10-27
- The BEST Waterproof Eyeliner Ever? ft. CLIO Sharp So Simple ↗thefashionceesta · Source checked 2026-10-27
- [2EA/NEW컬러] 샤프 쏘 심플 워터프루프 펜슬 라이너 ↗CLUBCLIO Korea official store · Source checked 2026-10-31
- Are mascara and eyeliner bad for your eyes? ↗The Ohio State University Wexner Medical Center · Mona Adeli, MD (ophthalmologist) · Source checked 2026-10-31
- How To Use Cosmetics Safely Around Your Eyes ↗American Academy of Ophthalmology (AAO) · Source checked 2026-11-01