What it is: An innovative product for growing and repairing the nails. What it does: This nail rejuvenator, which can be used as a basecoat or topcoat, uses an herbal ingredient called horsetail to strengthen and repair nails in one month. Rich in nutrients and high in silica, this powerful product delivers amazing results. Ideal for renewing nails damaged by professional gels or acrylics, this formula gives tired and dull-looking nails a refreshed shine.