What the term means.
A 0.07 mm label normally describes fibre thickness, while 10 mm describes length. Fine fibres allow several strands to form a fan. A small diameter alone does not establish suitability for every natural lash.
Total construction also includes strand count, length, taper and cross-sectional shape. A flat and a round fibre with similar size labels need not have the same mass. Comparisons should use the supplier's actual specifications rather than a universal fan-count rule.
The technical details.
- Unit
- Millimetres, written mm
- Fine volume examples
- 0.03, 0.05, 0.06 and 0.07 mm
- Single-fibre examples
- 0.10, 0.12 and 0.15 mm appear in classic ranges
- Combined assessment
- Thickness, length, taper, shape and strand count
These are industry definitions. Product names, profiles and availability vary; your artist selects the actual system and construction for your appointment.
A common question.
Does more fibre count simply mean better volume?
Fan opening, taper and distribution also change the appearance. Count is a construction detail, not a standard darkness level or a suitability guarantee.
Put the meaning into context
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