Synergy Nano Formula is a syringeable, radiopaque, highly filled fine-hybrid composite. This packable composite is an ideal esthetic alternative to amalgam for posterior restorations. Blends into the tooth due to its special resin matrix, which picks up and reflects light. Unique 2 in 1 shade system: 6 Duo Shades cover 12 Vita* shades, 0.6µm average filler particle size and narrow particle size range for great polishability and strength. Renowned ease of handling, non-sticky, non-slumping and easy to place.