Nailberry Strengthen & Breathe is a nail polish. Base Coat and nail strengthener with double action. Make your nails stronger and healthier by limiting breakage with the double action base and strengthening nail treatment. Oxygenated, highly strengthening, and vegan, just one coat before your favorite nail polish is enough to achieve a smoother and longer-lasting finish for your favorite color, but also to significantly reduce breakage and improve the health of your nails. Enjoy a healthier manicure with Strengthen & Breathe!