Based on the search results, there is not enough information to provide a detailed answer to the question about the product details, positive, negative, ingredients or materials of Green Bar à Ongles.
The first search result is a booking website for the nail salon, while the fourth result is the Instagram page of the salon. The second and third results are about Greenbar, which is a different brand that offers plant-based ingredients extracted from natural, renewable sources for nail polish and gel polish. The fifth result is a government website, and the sixth result is about Manucurist, which is another brand that offers vegan and bio-sourced nail polish and gel nail polish with up to 84% natural ingredients.
Without more specific information about the product in question, it is impossible to provide an accurate and detailed answer.
