NULASTIN Eyelash & Brow Serum Dual System — 0.1 FL oz (2-Pack)

NULASTIN Eyelash & Brow Serum Dual System is a peptide-based conditioning serum designed to enhance both lashes and brows. The formula combines keratin, peptides, and elastin-replenishment technology to reduce visible shedding and promote the appearance of fuller, thicker lashes and brows. Applied twice daily (reduced to once daily after results appear), users reportedly see visible results within 6–8 weeks. The dual-tube system targets lashes via a thin application above the upper lash line and brows via brush applicator. This is a prostaglandin-free, gentler alternative to prescription-strength growth agents, suited for users seeking conditioning-based enhancement without pharmaceutical actives. Currently priced at $103.60 with a 30% discount, it sits in the premium-to-mid-market tier; results require consistent daily use and vary by individual.