The CND Nail Rescue RXx Keratin Treatment and RidgeFx Ridge Filler is a high-quality nail care product designed to strengthen and repair damaged nails. With a period after opening of 36 months, this treatment ensures long-lasting benefits for achieving healthy and strong nails. Made in the United States by the renowned brand CND, this keratin treatment in a convenient 0.125oz (3.7ml) size is perfect for revitalizing nails and creating a smooth, even finish.