Peptide serum, enriched with Biotin, is designed to support fast nail growth. Nails become resistant to damage as they grow, while cuticles are softer and smoother. With this emergency treatment, see up to 59% longer nails in just 2 weeks!* *Based on fixed point nail measurement in 2 weeks. Apply daily. Massage 1 drop of Sally Hansen Nailgrowth Miracle Serum™ on each nail and cuticle. Use on bare nails or over your favorite Sally Hansen polish. Add Sally Hansen Nailgrowth Miracle Serum™ to your nail care collection – you never know when nails will need a miracle! Step into your always-on salon. No menu. No rules. America’s #1 nail brand, Sally Hansen puts the power of self-made beauty in your hands, with salon-tested solutions and on-trend colours.