Nail Strengtheners Inhibit Splitting Cracking Clear Coat w Applicator Select Type Brand: L.A. Colors Select: 1. Standard Strengthener or 2. Super Strengthener Purchase is for one 0.44 oz glass bottle with applicator. 1. Standard Strengthener Strengthens hardens weak and thin nails. Specially formulated to promote the growth of healthy natural naiuls, while preventing peeling splitting and breaking. MPN: CBLQ362 UPC: 081555733629 2. Super Strengthener Nail strengthen nails prevent nail chipping. MPN: CBLQ356 UPC: 081555733568 Instructions: Apply under nail polish or apply 2 coats over natural nails alone. For the best results, re-apply every 2-3 days. Perfect solution for controlling nail splitting and cracking! This formula helps strengthen and maintain healthy nails. Turns thin, weak, splitting and peeling nails into healthy strong nails. An ideal product for home, salons, and spas. Professional quality. Clear coat. USA domestic shipments are shipped USPS First Class Mail with Tracking International shipments are shipped USPS First Class International Mail with Tracking Comment by Seller: I found that one coat at the tip of the nail stopped a chronic splitting of a thumb nail. Simple and great fix for healthy nails that are broken or split during gardening or other abusive conditions, such as chemo cancer therapy.