Which of the following is NOT a type of nail enhancement?

Textured nails are not classified as a type of nail enhancement. Instead, they refer to a specific finish or design that can be applied to nails after they are manicured or styled, rather than a method used to enhance the structure or longevity of the nails themselves.

In contrast, gel nails, acrylic nails, and dip powder are all recognized techniques for enhancing nails. Gel nails involve a synthetic gel that is cured under UV light, providing a durable and glossy finish. Acrylic nails are created using a mixture of liquid monomer and powder polymer, which harden to form a strong extension of the natural nail. Dip powder nails involve applying a base coat followed by colored powder and a sealant, creating a long-lasting manicure without the need for UV light. Each of these methods serves to improve the appearance and durability of nails, whereas textured nails simply alter the visual surface without enhancing the nail's fundamental strength or structure.