These provide the vibrant (or subtle) hues and effects you see in polish.
Examples: Iron oxides, titanium dioxide, FD&C dyes, ultramarines
Purpose: Adds color and visual effects like shimmer or matte finishes.
✅ Usually safe, but glitters can be made from microplastics—not eco-friendly.

5. UV Stabilizers

These help protect nail polish from fading or yellowing when exposed to sunlight.
Example: Benzophenone-1
Purpose: Preserves color and finish over time.
⚠️ Potential endocrine disruptor—use in moderation
Many conventional nail polishes include chemicals known for health risks. These are the ones to skip when possible:
Formaldehyde – A known carcinogen used in some hardeners and resins.
Toluene – A solvent linked to headaches, dizziness, and nervous system effects.
Dibutyl Phthalate (DBP) – A plasticizer associated with reproductive harm.
Formaldehyde Resin – A derivative that can trigger allergic reactions.