In many cases using the powdered scent provides a stronger, more powerful scent trail than using the liquids alone. Because the powders are water based, they readily soak into salmon eggs, herring, bait fish, etc. Our selection includes real bait scents like Bloody Tuna and Krill, plus amino acids that, when added, bring up the natural smell and scent trail of natural bait. We also offer a selection of chemical powdered scents that are proven to turn on salmon, steelhead, trout, stripers, etc. Just remember that when using powders they need time to marinate in. We recommend a minimum of 15 minutes, with 4 to 8 hours being ideal.