I must say since I bought a packet of this stuff from wattie last year my youngsters have not looked better ,not even a snottie beak , a club mate had a touch of ybs ,got some from my mate and within 3days they were back to normal , he's well impressed . Although this doesn't make them win for me ,mines are just natural and only got one race last year and one this ,to me it helps keep them in top Nick , best £10 buy I've ever spent on a pigeon product and to be honest I've used it last year and this once a week ,it doesn't look like I've used any of it ,prob do me for another 5/6 years easy . Cheers again Walter . Stuart .