Ardell Growth Accelerator Treatment Gel Longer, Thicker, Fuller! #65070 .25 FL OZ (7 ML) Brow & Lash Growth Accelerator is a concentrated serum of multi-proteins that works to immediately reapir weak lashes and restore thickness of over-tweezed or thinning brows. Added conditioners soften dry, brittle lashes enabling them to grow longer, thicker, and fuller. APPLICATION: Use nightly. After cleansing face, brush on to lashes and/or brows. Leave on all night.