VetriScience Calm & Confident Chews, Composure Clinically Tested Calming and Anxiety Supplement for Small Dogs Under 30 lbs, Reduce Stress, Ideal for Thunderstorms and Fireworks, Chicken, 30 Count Review
By Dr. Lena Ortiz · Canine wellness writer · Published 2026-05-31 · Updated 2026-06-24
4.0(4,560)Amazon rating$12.292,000+ bought last month
Our verdict
VetriScience Calm & Confident Composure chews pair L-theanine with a colostrum calming complex in a chicken flavored pellet built specifically for small dogs under 30 pounds, and a 4.0 star average across 4,560 reviews suggests it's a reasonably dependable everyday option.
Small dog owners who want a clinically studied calming ingredient blend for triggers like thunderstorms, fireworks, or travel.
Skip if
You have a medium or large breed dog, since this formula and dosing are sized specifically for dogs under 30 pounds.
Form Pellet
Flavor Chicken
Benefits Calming Support
Best for Calming
Breed size Small
Weight 0.11 Pounds
Priced 49% below the category median ($23.99 across 63 tracked models)
Our scorecard
4.0/5overall
Owner rating4.0/5
4.0 average across 4,560 owner ratings
Popularity4.3/5
4,560 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
["This chicken flavored pellet formula is built around three named active ingredients: 134 mg of thiamine (vitamin B1), 22 mg of C3 colostrum calming complex, and 21 mg of L-theanine using the branded Suntheanine form. It's specifically sized and dosed for small dogs under 30 pounds, not a general all-breed formula.", 'The pellet format is easy to portion out and mix with food, and VetriScience markets Composure as a clinically tested calming and anxiety supplement rather than a generic herbal blend, leaning on ingredients like L-theanine that have documented research behind them in a general sense.', "At $12.29, it's an affordable entry point in the calming aid category, and it's clearly established with 4,560 reviews and a 4.0 star average. Around 2,000 units were bought in the past month, putting it among the more popular small-dog specific options."]
Pros
Named, measured active ingredients (thiamine, colostrum complex, L-theanine) rather than a vague blend
Sized specifically for small dogs under 30 lbs for more accurate dosing
Chicken flavor pellet format is easy to mix into food
Affordable at $12.29
Strong sales volume with about 2,000 units bought in the past month
Cons
Not suitable for medium or large dogs since it's dosed for under 30 lbs
4.0 star average is solid but trails some higher-rated competitors in this silo
Pellet form may be less appealing than a soft chew for picky eaters
Specifications
Form
Pellet
Flavor
Chicken
Benefits
Calming Support
Best for
Calming
Breed size
Small
Weight
0.11 Pounds
Performance notes
The pellet form delivers a precise 134 mg thiamine, 22 mg colostrum complex, 21 mg L-theanine dose per the label, which is more specific than many calming products that just list a proprietary blend. Because it's formulated and dosed for dogs under 30 pounds, it's a more targeted option than one-size-fits-all chews.
What buyers say
With 4,560 reviews and a 4.0 star average, plus roughly 2,000 units bought in the past month, this is a well-established, frequently repurchased small-dog calming product rather than a niche newcomer.
Each pellet dose lists 134 mg of thiamine (vitamin B1), 22 mg of C3 colostrum calming complex, and 21 mg of L-theanine using the Suntheanine brand, according to the product label.
Is this formula sized for my dog?
It's specifically formulated and dosed for small dogs under 30 pounds, so a larger dog would need a different size or product from the Composure line.
Will this work instantly for something like fireworks?
Calming supplements like this are typically most effective when given ahead of a known trigger and used consistently, and results vary by dog, so it's worth testing timing before a big event and checking with your vet for severe anxiety.
We use necessary cookies to keep the site working. With your permission, we also use functional, analytics, and marketing cookies. Read our Cookie Policy.
