Response+ Bait Boosters add highly stimulatory food signals to your baits that will quickly and consistently induce fish to feed in even the most unfavourable conditions. Response+ Fish Bait Booster is a grey-brown liquid with a pungently fishy profile that enhances baits based on fish, yeast, shellfish and other savoury products. This great value PVA friendly liquid bait booster is also designed for year-round use.