Oligo Blacklight Volume Shampoo Conditioner 230ml Duo Oligo Blacklight Volumizing Shampoo 230ml Oligo Blacklight Volumizing Shampoo offers body, volume and manageability for all hair types and textures. Superior conditioning, softness, smoothness and shine! Sulfate, paraben cruelty free. Oligo Blacklight Volumizing Conditioner 230ml Oligo Blacklight Volumizing Conditioner offers body, volume and manageability for all hair types and textures. Superior conditioning, softness, smoothness and shine! Sulfate, paraben cruelty free.