Step 2 - Billionails® Fortifying Phase TwoBillionails® is the second step in essie"s three part nail strengthening system. After successful use of millionails®, graduate to billionails® to sustain nail strength and growth.Enriched with vitamins A and D, wheat and vegetable proteins, billionails® hydrates and nourishes the nails. Use as a base coat or top coat with your favorite essie polish! Graduate to step three, trillionails®, for optimum results.Essie customized nail treatments are specially formulated to suit a wide variety of nail needs. A unique array of treatments are offered that all have one common goal; to promote and nourish the condition of natural nails.Made in USA