The finest lash in the studio — for artists who demand the impossible. Ultra-fine 0.03mm cashmere PBT mega volume lash extensions — hand-fan into 10D–20D+ fans that sit featherlight on natural lashes for the fullest, most dramatic mega volume result possible. Why You'll Love It Ultra-fine cashmere PBT mega volume lashes — 0.03mm diameter allows impossibly dense 10D–20D+ fans without perceptible weight on natural lashes Maximum fullness, zero heaviness — clients get the most dramatic mega volume look possible while keeping natural lashes healthy and undamaged Full fan control for advanced artists — hand-fan technique gives you complete control over fan size, shape, and density for customized mega volume sets Deep matte black finish — rich, consistent color with no plastic shine, perfect for editorial, photoshoot, and special occasion looks Key Features Ultra-fine 0.03mm cashmere PBT fiber — designed for 10D–20D+ mega volume fan range Available in 12 curls: J, B, C, CC, D, DD, L, M, LJ, LB, LC, LD Lengths from 8mm to 15mm, including 8–15mm mix trays for lash mapping Deep matte black — no shine, no plastic appearance FDA & CE certified — safe for professional salon use Cruelty-free, vegan lash extension materials Best For Advanced lash artists hand-fanning their own mega volume fans (10D–20D+) Clients with fine or sparse natural lashes wanting maximum fullness without damage Special occasions, photoshoots, bridal, and editorial mega volume looks Russian volume and mega volume technique requiring ultra-dense, featherlight fans Artists who want full control over fan size and shape Specifications Thickness 0.03mm Cashmere PBT Material Ultra-Fine Cashmere PBT Fiber Available Curls J, B, C, CC, D, DD, L, M, LJ, LB, LC, LD Available Lengths 8mm – 15mm (incl. 8–15mm mix trays) Fan Range 10D – 20D+ Finish Deep Matte Black Certifications FDA & CE Certified, Cruelty-Free Compare Options — Volume Lash Extension Thickness Guide Thickness Fan Range Best For Skill Level 0.07mm 3D–6D Russian volume, standard sets Beginner+ 0.05mm 5D–10D Dense Russian volume, intermediate artists Intermediate 0.03mm — You are here 10D–20D+ Mega volume lashes, advanced artists Advanced How To Use Prep — Cleanse natural lashes with Eyelash Primer to remove oils and maximize lash extension adhesion Isolate — Use precision tweezers to isolate one natural lash before applying the mega volume fan Fan — Hand-fan 10D–20D+ using your volume tweezers; 0.03mm cashmere lashes require a light, controlled touch for consistent fans Dip — Dip the base into 0.5s Lash Glue — use minimal adhesive for a clean, featherlight bond Apply — Place the fan 0.5–1mm from the lash line and hold for 2–3 seconds Cure — Use a nano mister to cure and seal the lash adhesive for maximum retention Related Guides Mega Volume Eyelash Extensions Guide — Technique, Tips & Tools 0.03mm vs 0.05mm Lash Extensions: Which Diameter Should You Use? Lash Retention & Humidity Guide Complete Your Mega Volume Lash Kit 0.5s Lash Glue — Fast-bonding professional lash adhesive for mega volume sets Eyelash Primer — Prep natural lashes for maximum lash extension retention Cashmere Easy Fanning 0.03mm — Same diameter, self-fanning base for faster mega volume sets Volume Lashes 0.05mm — Step down for 5D–10D denser Russian volume sets FAQ What are mega volume lash extensions? Mega volume lash extensions use ultra-fine lashes (typically 0.03mm–0.05mm) to create extremely dense fans of 10D–20D+ per natural lash. The result is the fullest, most dramatic lash look possible — while remaining featherlight on natural lashes thanks to the ultra-fine diameter. Why use 0.03mm instead of 0.05mm for mega volume? 0.03mm cashmere lashes allow 10D–20D+ fans without adding perceptible weight to the natural lash. 0.05mm is better suited for 5D–10D Russian volume sets. The finer the lash, the denser the fan you can safely create without damaging natural lashes. Is 0.03mm suitable for beginner lash artists? No — hand-fanning 0.03mm mega volume lashes requires advanced isolation technique and precise adhesive control. For faster mega volume sets, try our Cashmere Easy Fanning 0.03mm which self-fans with light pressure. What's the difference between hand-fan and easy-fanning 0.03mm lashes? Hand-fan mega volume lashes give you full control over fan size, shape, and density — ideal for advanced artists who want to customize every fan. Easy-fanning lashes open automatically with light pressure for faster, more consistent sets with less technique required. How long do mega volume lash sets last? With proper aftercare, mega volume lash sets last 4–6 weeks. Advise clients to cleanse every 2–3 days with an oil-free lash shampoo and schedule refills every 2–3 weeks to maintain fullness. Which curl is best for mega volume sets? C and D curls are the most popular for everyday mega volume. CC and DD add extra drama and lift. L, LB, and M curls are ideal for clients with very straight natural lashes or hooded eyes who need lift at the base.