As Makeup Artists Say, “It’s Not About The Lashes; It’s The Adhesive” and The Adhesive They Use Is DUO. Use DUO Dark Striplash Adhesive For Applying Striplashes. One tiny drop is all you need for an entire lash, so a tube lasts for a long time. Just squeeze a thin line of DUO adhesive along the lash band, wait 30 seconds and apply lash. For your conveniece, this DUO eyelash adhesive tube fits in your purse and is perfect for travel. DUO striplash adhesive dries in about 30 minutes for your convenience. The adhesive comes in a handy tube that makes it easy to use. The Dark Tone Striplash Adhesive blends perfectly with Black or Brown False Eyelashes.