1. Begin with thoroughly cleansed natural lashes. Curacoro Lash Shampoo is recommended before primer application.
2. Make sure excess moisture has been removed from the lashes.
3. Apply a small amount of Biotin Primer to a clean Micro Swab Applicator.
4. Use a second micro swab to gently sandwich the natural lashes, distributing primer from the base toward the tips.
5. Concentrate on the natural lash surface and avoid direct contact with the eyelid, skin, or eye.
6. Use the product sparingly. The lashes should be lightly treated, not saturated.
7. Allow the lashes to dry appropriately before beginning extension application.

• Using primer instead of lash shampoo → Primer should not replace proper cleansing. Remove makeup, oils, and debris with lash shampoo first, then use primer as an additional preparation step when needed.
• Over-saturating the lashes → More primer does not mean better retention. Excess liquid can make preparation inconsistent and may cause discomfort; use only a small amount.
• Applying directly to the skin → Primer is intended for the natural lashes. Maintain controlled application and avoid the eyelid and surrounding eye area.

Ingredients: Aqua, Acrylic, Ethanol, Phenoxyethanol, Ethylhexylglycerin, Phytoglycogen, Biotin, Sodium Hydroxide.

Vegan. Cruelty-Free. Made in the UK. Tested and endorsed by Curacoro Master Educators.

Caution: For professional external use only. Avoid direct contact with eyes and skin. Use sparingly and discontinue use if irritation occurs. Store tightly closed in a cool, shaded area away from heat and direct sunlight.

Do I need Biotin Primer if I already use lash shampoo?

Not necessarily for every client. Lash shampoo performs the main cleansing step, while Biotin Primer can provide additional preparation when oils, proteins, or stubborn residue remain on the natural lashes.

Can Biotin Primer make my adhesive dry faster?

Yes, the formula is designed to provide additional curing support, so technicians may notice faster adhesive behavior. Adjust your pickup, placement, and attachment speed accordingly.

Should I use more primer on clients with very oily lashes?

No. Apply only a light, controlled amount; saturating the lashes can create new application problems instead of improving preparation. Thorough cleansing should always come first.

Can I use this with any lash adhesive?

It is designed for use with professional lash extension adhesives, but adhesive formulations and curing behavior vary. When combining products from different systems, test the working behavior first and follow the adhesive manufacturer's instructions.

Will the biotin make natural lashes grow faster?

Biotin is included as a conditioning ingredient, but this primer should not be marketed as a lash-growth treatment. Its primary professional purpose is lash preparation and adhesive-performance support.