Here are the details about Onyx nail products based on the search results:

Onyx Professional Hard As Hoof Nail Strengthening Cream

• Positive: This product is designed to strengthen nails and contains niacinamide, retinoid, and Vitamin E.
• Negative: None found.
• Ingredients: Purified Water, Coconut Oil, Carthamus Tinctorius, Glycerin, Niacinamide, Retinoid, Vitamin E, and more.

Onyx Stop the Bite Nail Polish

• Positive: This product is designed to discourage nail biting and thumb sucking.
• Negative: The FDA has not reviewed its safety.
• Ingredients: Butyl Acetate, Ethyl Acetate, Isopropyl Alcohol, Acrylates Copolymer, Cellulose Acetate Butyrate, Denatonium Benzoate, Dipropylene Glycol Dibenzoate.

Onyx Professional 16oz Salon Strawberry Formula Nail Polish Remover

• Positive: This product is designed to remove nail polish, nail glue, and glitter polish, and conditions nails.
• Negative: None found.
• Ingredients: Acetone, Water, Fragrance, and more.

Onyx Professional "Stop The Bite" Nail Biting & Thumb Sucking Deterrent Polish

• Positive: This product is designed to help nails grow and can be used as a top or base coat.
• Negative: None found.
• Ingredients: Butyl Acetate, Ethyl Acetate, Nitrocellulose, Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer, Isopropyl Alcohol, Acetyl Tributyl Citrate, and more.

Onyx Black Natural & Vegan Nail Polish

• Positive: This product is natural, vegan, and cruelty-free.
• Negative: None found.
• Ingredients: Derived from Sugarcane, Cassava, Cotton, and Corn. It contains no nano-particles, no benzophenone 1, and none of the standard toxic ingredients.

In summary, the ingredients and materials of Onyx nail products vary depending on the specific product. Some products contain natural and beneficial ingredients, while others contain chemicals that may be harmful. It is important to read the labels and do research before using any nail product.