- Supports relaxed behaviour, restfulness, and sleep efficiency in dogs and cats
- No loading dose required — absorbed quickly for fast-acting results
- Contains patented Colostrum Calming Complex® (C3) that promotes GABA activity in the brain
- Suntheanine® L-Theanine supports dopamine, serotonin, and GABA release
- L-Tryptophan — the sole precursor of serotonin for natural relaxation
- Highly palatable chew for easy daily dosing
- Safe to use alongside other medications as directed by a veterinarian
Product Description
Stressful events are unavoidable for pets. Whether it is a car ride, a trip to the kennel, a house party, fireworks, thunderstorms, or a change in the household routine, many dogs and cats respond with anxiety, restlessness, pacing, excessive vocalization, or destructive behaviour. These reactions are not just inconvenient — they affect your pet's quality of life and long-term wellbeing.
Composure Pro by VetriScience is a veterinary-exclusive calming supplement that takes a multi-pathway approach to promoting relaxed behaviour. Unlike many calming products that require days or weeks of "loading" before they take effect, Composure Pro is rapidly absorbed and works without a loading dose, making it practical for both planned stressful events and unexpected triggers.
The formula combines four active ingredients that target different aspects of the brain's calming pathways. Colostrum Calming Complex® (C3) at 25 mg per chew is a patented blend of bioactive proteins — including proline-rich proteins, specific monosaccharides, and fatty acids — that supports brain function and promotes the effect of GABA, the neurotransmitter responsible for inhibiting excessive brain activity. Suntheanine® L-Theanine (25 mg) is a synthetic duplicate of a naturally occurring amino acid that supports the release of dopamine, serotonin, and GABA, helping to restore normal chemical balance in the brain. L-Tryptophan (75 mg) is an essential amino acid and the sole precursor to serotonin, the neurotransmitter most closely associated with relaxation, restfulness, and healthy sleep patterns. Thiamine / Vitamin B1 (100 mg) supports the central nervous system, promotes normal brain function, and helps maintain healthy energy levels — preventing the sedation that some pet owners worry about with calming supplements.
This is an important distinction: Composure Pro promotes calm behaviour without sedating your pet. Your dog or cat remains alert and responsive while feeling less anxious.
The chews are highly palatable and easy to dose across all pet sizes. For planned stressful events — travel, boarding, vet visits, holiday gatherings — give the dose 30–60 minutes beforehand. For chronic anxiety or ongoing environmental changes, daily dosing provides consistent support. The dose can be safely doubled during periods of heightened stress.
Composure Pro is distributed in Canada by Grey Wolf Animal Health and is available at VivoPet.ca with free shipping on orders over $99.
Key Ingredients
| Ingredient |
Amount per Chew |
What It Does |
| Thiamine (Vitamin B1) |
100 mg |
Supports the central nervous system and promotes relaxed behaviour. Helps optimize brain function and maintain normal energy levels without causing sedation. |
| L-Tryptophan |
75 mg |
An essential amino acid and the sole precursor of serotonin. Supports the release of neurotransmitters related to relaxation, restfulness, and sleep. |
| Colostrum Calming Complex® (C3) |
25 mg |
A patented blend of bioactive proteins that promotes GABA activity, the brain's primary inhibitory neurotransmitter. Supports brain function, relaxed behaviour, and cognitive function. |
| Suntheanine® L-Theanine |
25 mg |
A synthetic form of a naturally occurring amino acid that supports the release of dopamine, serotonin, and GABA to restore normal neurochemical balance and promote calm. |
Directions for Use
Administer once daily. Dose may be doubled or given twice daily during periods of increased stress.
| Body Weight |
Dose |
| Under 14 kg |
½ chew once daily |
| 14–27 kg |
1 chew once daily |
| Over 27 kg |
2 chews once daily |
No loading dose required. Can be used alongside other medications as recommended by a veterinarian. For planned events (travel, boarding, vet visits), give 30–60 minutes before the stressful event.
Supplement Advisor's Note
What stands out about Composure Pro's formulation is the multi-pathway approach. Rather than relying on a single ingredient, it targets GABA activity (via C3 and L-Theanine), serotonin production (via L-Tryptophan), and CNS support (via Thiamine) simultaneously. The no-loading-dose claim is a genuine practical advantage — many competing calming supplements require 2–4 weeks of daily use before showing results, which is useless if your dog has a vet appointment tomorrow. Thiamine is included at a therapeutic dose, which supports calm without sedation. This is the product we'd recommend for situational anxiety like car travel or boarding, and it works equally well for chronic low-grade anxiety in pets adjusting to a new home or household change. One important note: if your pet is on serotonergic medications such as SSRIs or tramadol, consult your veterinarian before use, as L-Tryptophan can contribute to serotonin load.
FAQ
Q: How quickly does Composure Pro work? A: Composure Pro does not require a loading dose and is rapidly absorbed. For situational use, give it 30–60 minutes before the stressful event. For daily use, most pet owners notice improved behaviour within the first few days.
Q: Will this sedate my pet? A: No. Composure Pro promotes calm, relaxed behaviour without causing drowsiness or sedation. Your pet will remain alert and responsive — just less anxious.
Q: Can I use this alongside other calming products or medications? A: Yes, Composure Pro can be used alongside other medications as directed by your veterinarian. It is safe to combine with prescription anti-anxiety medications if your vet recommends it. If your pet is on serotonergic medications (such as SSRIs or tramadol), consult your veterinarian before use.
Q: What situations is Composure Pro best for? A: Common uses include car travel, boarding or kenneling, vet visits, thunderstorms, fireworks, house parties, new household members or pets, moving to a new home, and separation anxiety. It works for both one-off events and ongoing daily support.
Q: How does Composure Pro compare to Zylkene? A: Zylkene relies on a single active ingredient (alpha-casozepine from milk protein) while Composure Pro combines four active ingredients targeting multiple calming pathways — GABA, serotonin, and central nervous system support. Composure Pro also does not require a loading dose, whereas Zylkene is typically recommended for at least 1–2 days before a stressful event. Both are effective; Composure Pro offers a broader approach.
Q: Is this safe for cats? A: Yes, Composure Pro is formulated for both dogs and cats. For cats under 14 kg, give ½ chew once daily.
