Betaine HCL is an acidic form of Betaine. Widely used in the aquaculture and animal-feed industry to promote feed intake and also aid digestion and nutrition intake. Ours is a 98% pure white crystalline powder. Suggested dosages are varied, but around 5-15 grams of Betaine per kilo of feed is recommended. Use in conjunction with the Evolution range for added attraction to your hookbaits. Also try dissolving a little in your chosen liquid/flavour and use as a glug for boosting hookbaits.