Choosing lash lengths for the clients you actually serve
Length is where a set succeeds or fails in the consultation. The tray mix that suits one market is dead stock in another, and the difference is usually client anatomy, not fashion.
The usable range
Professional lashes run from about 7 mm at the inner corner to 15 mm at the outer edge, with 16 mm available for dramatic work. Most full sets sit between 8 and 13 mm, built as a gradient across the eye rather than one length throughout.
A gradient tray usually carries more short lengths than long ones, because every set needs inner-corner lashes and only some need the longest. Buyers who order flat 12 mm trays end up cutting lashes to fit.
Mapping length to the eye
Inner corner takes 7 to 9 mm, mid-eye 10 to 12, outer corner 12 to 14. The outer corner is where drama lives and also where length starts touching the brow, so it is the section that decides whether a client is comfortable.
Clients with a short brow-to-lash distance need the outer length reduced before the curl is changed. Reducing length rarely loses the effect; reducing curl usually does.
Markets differ more than brands admit
Salons serving East Asian clients often work shorter, denser sets where 8 to 11 mm carries the look. Gulf and Middle Eastern markets frequently run longer and fuller, with 12 to 15 mm common. European and North American salons sit between, with strong regional variation inside each.
An importer who stocks one mix for all accounts ends up with the longest rows untouched in one market and empty in another. Ask your accounts what lengths they run out of first; the answer is more useful than a trend report.
What a mixed tray should contain
A practical salon mix weights the middle: a few rows at 8 and 9, the bulk between 10 and 12, and three or four rows at 13 to 15. That covers natural sets, hybrid work and the occasional dramatic request.
Retail kits are different. Consumer users apply one length across the whole lash line, so a kit usually ships 10, 12 or 14 mm as a single length in a smaller row count.
Length and price
Longer lashes use more fibre per lash, so a tray weighted to 13 to 15 mm costs slightly more than one weighted to 8 to 10, even at the same row count. The difference is small per tray and compounds across a container.
It is worth knowing before a negotiation. A supplier quoting a very low price on long lengths is usually reducing the row count rather than the fibre.
How length interacts with curl and diameter
Longer lashes amplify curl. A D curl at 14 mm reads far more dramatic than the same curl at 10 mm, and it is also more likely to brush the brow. Longer lashes at a heavy diameter put more load on the natural lash, which is where early shedding comes from.
The three specifications should be chosen as a set. Changing one in isolation is how a salon ends up with a set that photographs well and lasts badly.
Building a length range without waste
Start with two mixed trays: one weighted to 8 to 13, one weighted to 11 to 15. That covers most natural and most dramatic work without committing to eight separate single-length SKUs.
Add single lengths only when an account asks repeatedly. After the first quarter, look at which rows empty first and adjust the ratio on the next order rather than adding new SKUs.
What to ask the factory
Ask for the length breakdown per row, whether lengths are measured tip to base, and whether the tray is packed by length or by gradient. Ask what tolerance applies, because a 12 mm lash measuring 13 changes the set.
A factory that answers with a table is easier to work with than one that answers with a photo, and the table is what you can hold them to on the next order.
Questions buyers ask
What is the most common length?
Around 11 to 12 mm in mixed sets. Inner corners use 8 to 9 mm.
Do longer lashes cost more?
Slightly, because each lash uses more fibre.
Can I order one length only?
Yes, and retail kits usually do. Salon work needs a mix.
What length suits a short brow line?
Keep the outer corner at 12 mm or below, then adjust curl if needed.
How many rows of 14 mm should a tray carry?
Two or three in a salon mix. More only if your accounts do dramatic work.
Is length measured tip to base?
Yes in most factories, but confirm because a few measure from the band.
What tolerance is normal?
Around half a millimetre on standard lengths.
Why do long lashes shed early?
Weight. Longer at the same diameter loads the natural lash more.
What mix works for retail?
Single length kits at 10, 12 and 14 mm.
How do I order a custom mix?
Send the length ratio you want through the contact page.
Order the mix your accounts use
Tell us the lengths your artists run out of first. We pack trays to that ratio and confirm the breakdown per row on the spec sheet.
- Custom length ratios
- Breakdown per row
- Single lengths for retail
- MOQ 100 trays