Lash Primer Prepare. Prime. Perfect the Bond. Tomira Beauty Lash Primer prepares the natural lashes before extension application by helping remove excess oil, moisture, and residue from the lash surface. A clean, properly prepared lash surface helps create the ideal foundation for lash adhesive and can support a stronger, more consistent bond. Key Benefits * Prepares natural lashes for extensions * Helps remove excess oil and residue * Creates a clean surface for adhesive * Helps support a consistent lash bond * Ideal for lash application