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Lash Specification Reference: Curl, Length, Thickness & D-Count

Last updated: October 2026

This reference lists the specifications JINYANHUA manufactures across its five lash series — premade fans, individual extensions, glue-free clusters, magnetic lashes and the laser series. Use it to confirm curl, length, thickness and volume before ordering, or to check what is possible for a private label project.

Series5 product series
CurlsJ, B, C, D, O, L series
Lengths6–25 mm
Thickness0.03–0.25 mm

1. Premade FansPre-assembled clusters, 2D–20D

Multi-lash fans joined at the base, so the technician applies one piece instead of building the fan by hand. This is our most customisable series for volume work.

Curl Lift Visual effect Best for
J Minimal Closest to natural lashes; almost no visible lift Round eyes, no-makeup look
B Slight Natural opening of the eye, everyday wear Most eye shapes; safest first choice
C Noticeable Opens the eye and lifts the outer corner Monolid, hooded or downturned eyes
D Strong Clear curl, doll-eye effect Wide-set eyes, pronounced lift
DD Strongest Dramatic, editorial look Photoshoots, stage work

CC and L curls exist in the market but are not part of this range. Curl angles differ between manufacturers — compare physical samples.

Specification Value
Thickness 0.05 / 0.06 / 0.07 / 0.08 / 0.088 / 0.10 mm
Length 7–16 mm
Volume (D-count) 2D to 20D, including 12D, 14D, 16D, 18D and 20D
Colours Black, brown, blue, pink, purple, red, green
Material BSF.T fibre
Tray format 12, 16 or 20 lines per tray

Thickness and D-count pairings

Diameter Weight Typical D-count Notes
0.05 mm Very light 14D–20D Most delicate; needs careful handling
0.06 mm Light 10D–16D Balances softness with structure
0.07 mm Standard 5D–12D Highest-volume seller
0.08 mm Slightly heavier 4D–10D Fuller, more defined fans
0.088 mm Heavier 3D–8D Between 0.08 and 0.10
0.10 mm Heaviest in this range 2D–6D Not for high D-counts

Production, sampling and packaging

Item Value
Daily capacity 1,000 boxes per day
Sampling lead time 2–3 weeks
Custom packaging Available on request
Rows Outer box Inner box Weight
12 11.5 × 6.5 × 1.5 cm 11.4 × 5.3 cm 26.5 g
16 / 20 17 × 11 × 1.8 cm 16.5 × 9.7 cm 90 g

2. Individual / Classic ExtensionsSingle lashes, round and flat fibre

Single-lash extensions grouped by construction family. Styles inside one family share the same thickness, length and curl range — they differ in shape only.

Family Styles Curl Length Thickness Colour
Curl flower, daisy, clover V-type Xiaoronghua, Changduan Xiaoronghua, Xiao Chuju, Sanyecao, Waikuo Sanyecao, Haiwang Sanyecao, Jiaxin Sanyecao Baby curl, B, C, D, LJ, LB, LC (outward and sea-king: C only) 8–13 mm 0.07 mm (daisy 0.07 / 0.10) Natural black
Four-leaf clover, 5D, YY Maorong Siyecao, 5D Huashen, YY Baby straight, baby curl, J, B, C, D, O, L series, fox eye 8–15 mm (YY partly 8–12) 0.03 / 0.05 / 0.07 mm Natural black, black, caramel, dark brown
Camellia Guofeng Camellia, with or without adhesive, 1 / 1.5 / 2 mm bend L series, baby straight, baby curl, J, B, C, D, O 6–18 mm 0.03 / 0.05 / 0.07 mm Black, black-tea, dark brown
Velvet Tianerong, with or without adhesive, 2 mm bend L series, baby straight, baby curl, J, B, C, D, O 8–25 mm 0.03 / 0.05 / 0.07 / 0.10 / 0.12 mm Black
Flat fibre Maorong Bianmao, Jingpin Bianmao Same as camellia 6–15 mm / 8–15 mm 0.15 / 0.20 / 0.25 mm (flat) Natural black, dark brown

Material: BSF.T fibre — the same fibre used in Premade Fans.

Style names are given in pinyin exactly as used in our factory documentation. "Baby straight" and "baby curl" are our curl names; L series refers to LJ, LB, LC, LD and LU variants. Ask for the curl chart if you need a visual comparison.

3. Glue-Free Cluster LashesSelf-adhesive, no glue required

Specification Value
Curl B, C
Length 10–15 mm
Colour Black
Material PET synthetic fibre
Packaging 6 or 10 lines per tray
Thickness Not specified — styles differ by shape only

4. Magnetic LashesReusable, no adhesive and no liner

Specification Value
Curl B, C
Length 13–15 mm
Colour Black
Material PET synthetic fibre
Packaging 1 pair per box, including magnetic applicator
Thickness Not specified — styles differ by shape only

5. Laser SeriesLaser-cut tapered tips

Specification Value
Curl B, C
Length 10–16 mm
Colour Black
Material PET synthetic fibre
Packaging 12 lines per tray
Thickness Not specified — styles differ by shape only

6. Frequently asked questionsOrdering and range

How many lash series do you manufacture?

Five: premade fans, individual / classic extensions, glue-free cluster lashes, magnetic lashes and the laser series.

Which curls are available?

Premade fans: J, B, C, D and DD. Individual extensions add O, the L series (LJ, LB, LC, LD, LU), baby straight, baby curl and fox eye. Glue-free clusters, magnetic lashes and the laser series are made in B and C.

What is the length range across all series?

6–25 mm. Premade fans run 7–16 mm, individual extensions 6–25 mm, clusters 10–15 mm, magnetic 13–15 mm and laser 10–16 mm.

What thicknesses do you produce?

Individual extensions: 0.03, 0.05, 0.07, 0.10 and 0.12 mm round fibre, plus 0.15, 0.20 and 0.25 mm flat fibre. Premade fans: 0.05, 0.06, 0.07, 0.08, 0.088 and 0.10 mm.

Which colours are available?

Premade fans come in black, brown, blue, pink, purple, red and green. Individual extensions come in natural black, black, caramel and dark brown. Clusters, magnetic lashes and laser series are black.

What is the volume range for premade fans?

From 2D to 20D, including 12D, 14D, 16D, 18D and 20D.

What is the minimum order?

50 boxes for ready-to-ship wholesale, 500 boxes for private label and OEM, and 1,000 boxes for ODM development.

How long does production take?

2–4 weeks for ready-to-ship wholesale, 3–4 weeks for private label and OEM, and 5–8 weeks for ODM development.

OrderingWholesale, private label and ODM

Ready-to-ship styles start at 50 boxes. Private label and OEM orders start at 500 boxes with your logo, box and inserts. ODM development starts at 1,000 boxes and includes new tooling and prototyping.

Wholesale catalog · Private label and OEM · Request a quote