Do synthetic silk fake eyelashes have stable quality?
Core Conclusion
Zero batch variation: Standardized PBT or nylon fibers ensure every strand has identical thickness, curl and length, with no uneven texture caused by natural fur differences.
Reliable shape retention: Synthetic silk holds its curl well through humidity, sweat and repeated wears, and does not easily fray or shed loose fibers.
Consistent user experience: For brands and regular wearers, every pair performs the same, with no unexpected quality fluctuations.