From the search results, it appears that turtle nail art can refer to a variety of designs and techniques, but there is not much information on specific products or ingredients. Here is a summary of the relevant information:

• Designs: Turtle nail art can include 3D designs of sea turtles, as well as tortoise shell patterns in various colors.

• Techniques: There are tutorials available for creating turtle nail art using nail polish, as well as using Japanese or Korean gel products.

• Product details: The only product details provided in the search results are for a specific brand of tortoise shell nail polish. These products are described as having no harsh ingredients or adhesives, low smell, rich color, middle consistency, self-even application, no shrink or edge, high pigmentation, and a smooth finish.

• Ingredients or materials: There is no information on specific ingredients or materials used in turtle nail art. However, one search result does mention "non-toxic" Japanese gel products. Another search result provides a list of animal-derived ingredients that may be found in cosmetics, including turtle oil. However, it is unclear if turtle oil is actually used in any nail art products.