Metallic Mermaid Lips Siren is a deep green lipgloss that gives a glimmering, jewel-effect finish , Formulated to be cruelty free and vegan, with a divine vanilla scent Metallic Mermaid Lips Siren features a divine vanilla scent, with a glimmering, jewel-effect metallic finish. Use alone or layer over the top of any lip colour for multidimensional lips. Siren - Metallic Deep Green Cruelty free and vegan.