CURACORO Biotin Lash Primer for Lash Extensions 15ml — Oil-Removing, Faster Glue Cure for Longer Retention

Curacoro Biotin Lash Primer is a biotin-enriched lash extension prep that removes oils and residue, accelerates glue curing, and improves retention for longer-lasting extensions.

Designed for professional lash artists and careful at-home enthusiasts, this 15ml primer cleans and conditions the natural lash before adhesive application. Its low-residue formula clears makeup, sebum, and protein build-up while delivering biotin to support lash strength and resilience. Housed in a leak-proof, matte glass vial built for salon use, the primer pairs especially well with Curacoro ProBond Bonder to amplify bond performance.

How does Curacoro Biotin Lash Primer prepare natural lashes for extensions?

The primer clears contaminants that prevent adhesive from gripping the natural lash, creating a dry, even surface for glue. At the same time, its biotin-enriched formula helps condition the cuticle without leaving oily film or sticky residue.

• Removes oils, makeup, and protein build-up for a clean bonding surface
• Leaves lashes dry and slightly conditioned for adhesive adhesion
• Compatible with most professional lash glues and application techniques

Will this product speed up glue curing and improve retention?

Yes — the primer removes surface oils that slow curing and interferes with bond strength, which allows glue to set more quickly and consistently. When paired with professional bond-enhancing products, retention times can extend noticeably.

• Promotes more even, faster polymerization of adhesives
• Reduces application time by improving glue performance
• Works with all standard lash adhesives used by professionals

What benefits does the biotin infusion provide during prep?

Biotin supports the structural integrity of natural lashes and soothes the delicate lash line during prep, giving a gentle conditioning effect without compromising adhesion. This means lashes feel healthier while still remaining perfectly prepped for extensions.

• Biotin helps strengthen and support natural lash fibers
• Soothes and calms the lash line during application prep
• Provides conditioning without oily residue that weakens bonds

How should professionals apply Curacoro Biotin Lash Primer?

Use a micro swab to sweep a thin layer from root to tip on clean, dry lashes just before adhesive application. Apply sparingly—only a light coating is needed—and let the primer dry briefly before attaching extensions.

• Apply with a micro swab on individually isolated natural lashes
• Allow a few seconds for the primer to set before adhesive contact
• Pair with Curacoro ProBond Bonder for enhanced bond strength

Who is this for: Curacoro Biotin Lash Primer is aimed at licensed lash technicians and experienced at-home users who want cleaner prep, faster adhesive curing, and improved extension retention without adding oily or tacky residue. It's ideal for salons seeking a professional, reliable prep step that conditions lashes while maximizing glue performance.