A composition comprises valerian, impatiens spp., and wild clematis, their oils, extracts, derivatives or synthetic equivalents thereof. Preferably the composition also comprises a C2-C8 alcohol such as ethanol or a phenyl ethyl alcohol and may further include a lipophilic organic diluent such as propylene glycol. The composition preferably comprises valerian in an amount from about 0.0625% to about 0.250% w/v, impatiens spp. in an amount from about 0.15% to about 0.6% w/v, wild clematis in an amount from about 0.15% to about 0.6% w/v, a C2-C8 alcohol or phenyl ethyl alcohol in an amount from about 0.5% to about 97% w/v and a lipophilic organic diluent in an amount from about 2.5% to about 99% based on the total volume of the composition. Preferably the composition is useful in the treatment or prevention of stress, or for inducing a friendly behaviour in a non-human subject, in particular cats and dogs, where the composition may be administered by a spray or diffuser. A composition consisting of valerian, impatiens spp., wild clematis their oils, extracts or derivatives thereof, ethanol and propylene glycol is also provided.