Bronze nail polish is a pearly brown glitter nail polish that can provide opaque coverage. Here are some details about nail polish ingredients and materials:

Positive:

• Some nail polish brands, such as OPI, are "9-free," meaning they do not contain certain toxic chemicals like dibutyl phthalate, formaldehyde, and toluene.
• Some nail polish brands, such as Honeybee Gardens, offer non-toxic nail polish options that do not contain potentially harmful ingredients.

Negative:

• The primary ingredient in nail polish is nitrocellulose, which is a flammable and explosive ingredient also used in making dynamite.
• Some nail polish ingredients, such as organic pigments/dyes derived from petrochemicals, may contain traces of heavy metals and contaminants specific to petroleum, such as carcinogenic and toxic to reproduction benzo.

Ingredients or materials:

• Film forming agents: Nitrocellulose is the primary film forming agent in nail polish.
• Resins and plasticizers: Castor oil, amyl and butyl stearate, and mixes of glycerol, fatty acids, and acetic acids are among the resins and plasticizers used in nail polish.
• Solvents: Ethyl acetate, butyl acetate, and isopropyl alcohol are some of the solvents used in nail polish.
• Coloring agents: Organic pigments/dyes derived from petrochemicals and inorganic mineral pigments, such as iron oxides, are used as coloring agents in nail polish.

It is important to note that the exact formulation of a nail polish greatly depends upon choices made by chemists and chemical engineers in the research and development phase of manufacturing.