1. Assess natural lash strength under magnification and be prepared to recommend a lower density.
2. Cleanse and prime, then tape and map, keeping length proportionate to the natural lash.
3. Isolate with extreme care - at eighteen fibres a stickie is very hard to release cleanly.
4. Dispense a generous glue dot and refresh every few fans.
5. Dip only the base tip; at this diameter and count anything deeper closes the fan.
6. Place slowly and hold until the base has fully seated.
7. Space wide and stop on coverage, not on a placement count.
8. Check each section for stickies before moving on, comb through, and cure fully.

• Applying maximum density on request rather than on assessment - the client's brief does not decide this; the lash does.
• Combining 18D with the longest lengths across the map - density and length compound at the base and the set sheds fast. Reserve long lengths for a few strong lashes.
• Deep dipping - closes the fan instantly. Base tip only, with frequent dot refreshes.
• Normal placement pace - partial base contact is invisible on the day and obvious two weeks later.
• Generic aftercare - this density punishes oil, friction and long infill cycles harder than any other. Give explicit instructions.

RETENTION TIPS FOR 18D 0.03 SETS

At maximum coverage, retention is decided by adhesive discipline at the chair and by aftercare compliance afterwards.

• Refresh the glue dot every few fans; an aging dot floods the fan and leaves the base under-saturated, which is the dominant retention failure at this density.
• Hold each placement longer than at lower densities so the base makes complete contact before you release.
• Keep length proportionate - a long fan at 18D applies the highest leverage in the whole range to a small base.
• Book infills at 2 weeks where possible; at this density a longer cycle becomes a rebuild rather than a fill.
• Instruct daily cleansing with a lash-safe foam and complete avoidance of oil-based eye products.

Materials: PBT pro-silk fibre with a light cosmetic bonding agent at the base. Vegan, latex-free and cruelty-free. Patch test new clients for adhesive sensitivity.

The length range here starts at 10mm rather than 8mm - why?

This density is used almost exclusively for dramatic, high-coverage sets where the shortest sizes rarely feature, and a very short 18D fan concentrates a lot of fibre into a small visual space where it reads as a blob rather than as coverage. For inner-corner work at this density, most artists drop to a lower count.

How do I stop an 18D set reading as heavy when the fibre is so fine?

Perceived weight comes from silhouette rather than grams - a set that is uniformly long and strongly curled looks heavy no matter how light the fibre. Contour the length more aggressively and flatten the curl through the centre, and the same density will read as full rather than heavy.

What natural lash length is too short for an 18D fan?

If the extension is more than roughly a third longer than the natural lash carrying it, the leverage at the base becomes the limiting factor regardless of fibre weight. On short natural lashes, high density is fine but long extensions are not.

Is there a real difference between 18D and 20D in the finished set?

Not one most clients or most photographs will register. At this end of the range you are past the point where fibre count changes the visible result, so the choice is more about the artist's preference and the box they already have open.

My 18D sets take far longer than my 12D sets despite fewer fans - is that normal?

Yes. The time moves from placement count to placement quality: longer seating holds, more careful pick-up, more frequent dot refreshes and slower stickie checks. Pricing this set on chair time rather than fibre count is the accurate way to charge for it.