We use a variety of herbs for our calming treats, we have Lavender, our most popular one, our next most popular treat has always been our chamomile and strangely enough our best working calming treat was the least favoured by canines in our trials, Valerian root, dogs could not initially get past the smell of Valarian. My own personal thoughts on the scent of the valarian root would not be complimentory, if my own spaniel refuses it then its a non starter, so we re-trialed it by maskimg ths smell, after all it the best at calming pets down, after trying many ingredients it was agreed we neededto use the strong flavours of the herring as a guise to mask the smell of the valerian root, all our trials on the valerian root treats failed miserably. The odour emitted from valerian root does not sit well with any our trial dogs. however when we add valerian to chamomile it was exepted by most of the dogs in our trial but not all. Nothing we make goes on sale until we have fully tested it first, valerian root has a bitter after taste, yet out of our 3 flavoured treats the valerian root shows the best promise. The valarian root is the doggy equivelant to Tramadol in humans. so finally weve added valerian root to our Herring, Carrot & Kale treats with 100% sucess rate. We recommend either the Lavender or chamomile calming treats to be given with the daytime insulin injections and the 2 valerian root (doggy Tramadol) treats should be given before bedtime, one before and one directly after insulin injections, these should also be given as close to bedtime as possible ensuring your canine has a stress free nights sleep.