Based on the search results, there is no information available about the specific products used at Grand Nail Spa 2. However, it is mentioned that the salon uses hospital-grade autoclaves to sterilize all metal instruments, and disposable nail files, buffers, pumice stones, toe separators, and slippers for each customer to ensure protection from cross-contamination. Additionally, the salon uses soaps and individual-use liners to eliminate bacterial problems associated with pipeless jet pedicure tubs.

It is important to note that products used in nail salons may contain chemicals that can affect worker health. However, there is no information available about the specific products used at Grand Nail Spa 2.

Positive aspects of Grand Nail Spa 2 mentioned in the search results include its welcoming atmosphere, use of hospital-grade autoclaves and disposable tools for each customer, and introduction of the Volcano Pedicure that features the finest ingredients for health, safety, and comfort.

Negative aspects of Grand Nail Spa 2 were not mentioned in the search results.

Ingredients or materials used in the products at Grand Nail Spa 2 were not mentioned in the search results.