Multifunctional green pigment with UV protection based on capping agent-engineered Cr-doped hydroxyapatite nanoparticles

Key Points

• The research aims to develop a multifunctional pigment that protects against UV radiation while being biocompatible.
• Engineered Cr-doped hydroxyapatite nanoparticles were synthesized as a pigment base.
• Biocompatibility tests were conducted to ensure safety for cosmetic use.
• The potential application in BB cream formulations was evaluated.
• The Cr-doped hydroxyapatite nanoparticles effectively shielded against UV radiation.
• The nanoparticles showed favorable biocompatibility for cosmetic formulations.
• The green pigment can be adjusted for desired tint in BB cream.