Protexin Veterinary SereniCare is a calming support supplement for dogs and cats, stocked at PeekAPaw as 1g sachets in a 30 pack. Protexin aims it at noise sensitivity such as fireworks and thunderstorms, vet visits, travel, kennel and cattery stays, moving house, separation anxiety, unfamiliar visitors and general anxiety. Each sachet combines alpha-casozepine, a bioactive peptide derived from cow's milk, with L-tryptophan, a postbiotic blend of heat-treated Lactobacillus rhamnosus and Bifidobacterium longum, and Fibersol prebiotic for the gut-brain side. Timing matters more here than with most supplements: Protexin's instruction is to begin two weeks before an expected anxious event, giving once daily according to body weight, so this is bought ahead of New Year's Eve fireworks or a house move rather than on the night. Individual animals vary and effects may take up to six weeks, and Protexin positions it alongside behavioural training. Persistent anxiety is worth working through with your vet.
Protexin Veterinary SereniCare Sachets combine prebiotics, postbiotics, peptides, and L-tryptophan to manage stress, anxiety, and gut health, helping dogs and cats with:
- Noise sensitivity (e.g. fireworks and thunderstorms)
- Vet visits, moving home, kennels/cattery, and travelling
- Separation anxiety
- Social fear (unfamiliar visitors)
- General anxiety
A unique combination of calming ingredients
Derived from cow's milk, alpha-casozepine is a natural bioactive peptide that calms and relaxes. Protexin Veterinary SereniCare Sachets also contain a calming postbiotic blend of heat-treated Lactobacillus rhamnosus CECT8361 and Bifidobacterium longum CECT7347, to help manage stress and anxiety-related behaviour.
Biotic blend supports gut health
Alongside postbiotics, each sachet also contains the prebiotic Fibersol to feed beneficial bacteria and promote a healthy microbiome, which is key for normal gut-brain communication.
Helps make the 'happy hormone'
To support normal mood and behaviour, Protexin Veterinary SereniCare Sachets also contain L-tryptophan, which is used to make the 'happy hormone' serotonin.
Help your pet be prepared
Begin two weeks prior to an anxious event,* giving once daily according to the on-pack guidelines. If needed, the dose can be repeated 90–120 minutes prior to the event.
Instructions for use
Begin supplementation with SereniCare 2 weeks prior to the expected anxious event. Give once daily according to body weight. The dose can be repeated 90–120 minutes prior to an expected anxious event. SereniCare is suitable for long-term use alongside appropriate behavioural training. The amount may be increased or decreased as directed by your vet.
* Individual animals can vary. Effects may be seen sooner in some animals, though may take up to 6 weeks in others.









