Standard YY lashes, Kitten YY lashes and Narrow YY lashes are related professional tray formats, but the names do not guarantee one universal spread, density or finished style across every brand. In the current LASHMAITRE range, all three comparison products use 0.07mm fibers and offer C or D curl with single lengths from 8–15mm plus an 8–15mm Mix. Choose by the actual product construction, verified specifications and the set your trained artist plans—not by the name alone.
Quick YY lash comparison
| Buying question | Standard YY | Kitten YY | Narrow YY |
|---|---|---|---|
| Verified LASHMAITRE thickness | 0.07mm | 0.07mm | 0.07mm |
| Verified curls | C and D | C and D | C and D |
| Verified lengths | 8–15mm and 8–15mm Mix | 8–15mm and 8–15mm Mix | 8–15mm and 8–15mm Mix |
| What to compare next | Split-tip form, spread and finished texture | Kitten-specific direction and visible spread | Narrow/U-shaped form and compactness |
| Best evidence | Live product page and physical sample | Live product page and physical sample | Live product page and physical sample |
At the 2026-10-20 check, each product page listed 18 available curl-and-length combinations. That makes a like-for-like comparison possible: keep curl and length the same, then compare the actual fiber arrangement.
What are Standard YY lashes?
Standard YY lashes are pre-arranged split-tip units used by trained lash artists to add texture and coverage without hand-making a conventional volume fan. The LASHMAITRE 0.07mm YY product is the baseline format in this comparison.
The current product page lists C Curl and D Curl, individual lengths from 8mm through 15mm and an 8–15mm mixed tray. Those are verifiable specifications. The final effect still changes with mapping, placement, natural-lash coverage and the artist’s technique.
What are Kitten YY lashes?
Kitten YY lashes are a separate LASHMAITRE product style within the YY/W Shape family. The current listing matches the Standard YY page on the core specifications used for this comparison: 0.07mm, C or D curl, 8–15mm single lengths and an 8–15mm Mix.
“Kitten” is not a universal measurement. Different sellers may use the label for different fiber arrangements or directional effects. Compare the real tray image and a physical sample instead of assuming a fixed fan width, angle or eye-shape result from the product name.
What are Narrow YY lashes?
LASHMAITRE names this product Narrow YY Lashes (U-Shaped YY Lashes). The listing identifies one 0.07mm thickness, C and D curl, 8–15mm single lengths and an 8–15mm Mix.
The Narrow and U-shaped wording helps identify the product family, but it is still not a standardized degree or millimeter measurement. Compare the supplied detail image and physical fibers with Standard YY at the same curl and length before deciding how the two formats fit a service menu.
How to compare the three products fairly
Use a like-for-like test rather than comparing unrelated tray variants.
- Select the same curl, such as C Curl, in all three products.
- Select the same printed length, such as 11mm or 12mm.
- Keep thickness at the verified 0.07mm used by these three pages.
- Compare the base, split, fiber direction and visible spread under the same lighting.
- Check pickup and placement only within the artist’s professional training and the product instructions.
- Record the exact product, curl and length that produced the preferred result.
Do not compare a mixed tray in one format with a single-length tray in another and attribute every difference to the YY type. Curl, length and map can change the visible result even when the product family stays the same.
Which YY lash type should you choose?
Choose Standard YY when you want the baseline LASHMAITRE YY format and a straightforward reference point for future comparisons. Choose Kitten YY when the photographed Kitten arrangement matches the planned texture and direction after a sample review. Choose Narrow YY when the U-shaped/narrow product construction is the feature you need to test.
None of the three is automatically better, lighter, safer or longer lasting. The correct choice depends on the exact product, natural-lash assessment, intended texture, mapping and professional application.
Standard YY
Baseline 0.07mm YY format with C/D curl and single or mixed lengths.
View Standard YY specs
Kitten YY
Kitten-specific product style with the same verified comparison options.
View Kitten YY specs
Narrow YY
Narrow/U-shaped product family for a like-for-like sample comparison.
View Narrow YY specsProduct paths from the current LASHMAITRE range
Browse all related options in the YY / W Shape Lashes collection. If the decision is about construction rather than YY subtypes, read YY Lashes vs Classic and YY Lashes vs Volume Lashes first. Those pages own the broader service-format comparisons; this article only owns the comparison among three YY product styles.
Common buying mistakes
- Treating “Kitten” or “Narrow” as a universal industry measurement.
- Comparing different curls or lengths and blaming the product family for every visible change.
- Choosing from a finished-set photo without checking the tray specifications.
- Assuming one YY format guarantees better retention.
- Ordering many lengths before testing pickup, direction and the intended map.
- Mixing product names from different suppliers as if the constructions were identical.
Professional-use and eye-area safety note
Eyelash extensions and their adhesives are eye-area cosmetic products. The U.S. Food and Drug Administration advises checking adhesive ingredients and stopping use if irritation occurs. The American Academy of Ophthalmology recommends considering the technician’s experience, salon hygiene and adhesive information.
This comparison supports product selection; it is not application training or medical advice. A trained professional should assess natural-lash condition and product suitability. Anyone with pain, swelling, infection or a significant reaction should stop the service and seek appropriate care.
Frequently asked questions
What is the difference between Standard YY, Kitten YY and Narrow YY lashes?
They are three related but distinct product styles. In the current LASHMAITRE range, all three comparison products use 0.07mm fibers, C or D curl and 8–15mm lengths. Their construction and visible direction should be compared from the real tray images and samples rather than assumed from the names.
Are Kitten YY lashes wider than regular YY lashes?
Do not treat “Kitten” as a universal width measurement. Supplier terminology varies, and the current LASHMAITRE page does not publish one standardized spread in millimeters. Compare the Kitten and Standard YY fibers at the same curl and length, then confirm the physical sample before making a buying decision.
Are Narrow YY lashes the same as U-shaped YY lashes?
LASHMAITRE currently names its product “Narrow YY Lashes (U-Shaped YY Lashes),” so those terms refer to the same product page in this range. Other suppliers may use different names or constructions, so verify the actual fibers and specifications rather than assuming every U-shaped or Narrow YY tray is identical.
Which YY lash type looks the most natural?
No product name guarantees the most natural result. The finished appearance depends on the fiber construction, curl, length, density, placement, map and the client’s natural lashes. Compare like-for-like samples and choose the format that supports the planned texture instead of ranking all three by name alone.
Do Standard, Kitten and Narrow YY lashes use the same curl and length options?
At the 2026-10-20 check, the three LASHMAITRE pages all listed C and D curl, single lengths from 8mm to 15mm and an 8–15mm Mix. Availability can change, so confirm the selected variant on the live product page before ordering.
Do YY lash types have different retention?
There is no responsible universal retention winner. Retention can change with natural-lash condition, preparation, adhesive behavior, room conditions, placement, attachment and aftercare. Compare the exact products under similar service conditions and do not treat Standard, Kitten or Narrow naming as a retention guarantee.
Compare the actual trays before choosing
For YY lashes vs Kitten YY vs Narrow YY lashes, begin with the verified shared specifications, then compare the real construction at the same curl and length. Browse the YY / W Shape Lashes collection or open the three product pages to confirm current variants before ordering.
Sources checked 2026-10-20: LASHMAITRE Standard 0.07mm YY, Kitten YY and Narrow YY product pages; U.S. Food and Drug Administration Eye Cosmetic Safety; American Academy of Ophthalmology Eyelash Extension Facts and Safety.