As far as feed stimulators go, Betaine is up there with the best of them.

 

It gets the fish feeding when fishing is proving slow. Available in small pots with fine Betaine powder, it allows the bait to be added to base mixes or even as an additive in stick mixes in small quantities.
 
The Betaine is supplied in a small airtight pot to ensure freshness for long periods of time.
 
Price: £4.99