Nutramax Solliquin Calming Support for Dogs, Behavioral Health Supplement with L-Theanine, Magnolia/Phellodendron, and Whey Protein Concentrate, Soft Chews, 75 Count Review
By Dr. Lena Ortiz · Canine wellness writer · Published 2026-05-18 · Updated 2026-06-26
4.1(495)Amazon rating$23.993,000+ bought last month
Our verdict
Solliquin is a behavioral health soft chew from Nutramax, a name well known in the joint supplement space, and it leans on L-theanine, magnolia and phellodendron bark extract, and whey protein concentrate rather than a single ingredient, with a 4.1 star average across 495 reviews suggesting a generally positive but more modest response than some higher volume competitors.
Dogs with everyday stress triggers like car rides, vet visits, or mild environmental changes, especially large breed dogs given the sizing on this formula.
Skip if
You need something for an intense, acute event like fireworks or thunder tonight, since multi-ingredient calming chews like this are typically built for gradual, ongoing support rather than fast, one-time sedation.
Form Soft Chew
Best for Behavior
Breed size Large
Weight 11.28 Ounces
Our scorecard
4.1/5overall
Owner rating4.1/5
4.1 average across 495 owner ratings
Popularity2.1/5
495 owner reviews, fewer 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
['Solliquin comes from Nutramax Laboratories Veterinary Sciences, the company behind Cosequin, so it carries some pedigree in the supplement space. This soft chew formula for large dogs blends L-theanine, magnolia and phellodendron bark extract, and whey protein concentrate, three ingredients often used together in calming products aimed at everyday stress rather than sedation.', 'The 75 count bag comes in at 11.28 ounces and is labeled for behavior support in large dogs specifically, so owners of smaller dogs should double check dosing guidance before starting. As with any calming supplement, this is meant to support day to day stress responses and is not a substitute for veterinary care if your dog has an underlying anxiety condition.', "At $23.99 for 75 chews, it's priced in the middle of the calming aid category. With 495 reviews and a 4.1 star average, plus roughly 3,000 bought in the past month, it has a steady following, though its rating trails some of the higher volume calming chews in this list."]
Pros
Backed by Nutramax, an established name in dog supplements
Combines L-theanine, magnolia/phellodendron, and whey protein rather than one ingredient
4.1 star average is more modest than some competing calming chews
Formulated for large breed dogs, so sizing may not suit small dogs
Not intended for acute, high stress events happening the same day
Specifications
Form
Soft Chew
Best for
Behavior
Breed size
Large
Weight
11.28 Ounces
Performance notes
The soft chew delivery format with whey protein concentrate as a base tends to make these easy to get most dogs to eat, and the L-theanine plus magnolia/phellodendron combination is a common pairing in calming formulas meant for ongoing, low level stress support rather than fast-acting sedation.
What buyers say
A 4.1 star average from 495 reviews, plus about 3,000 units bought in the past month, points to a smaller but consistent customer base compared to some of the higher review count products in this category.
This version is labeled for large dogs, so check the packaging or ask your vet about appropriate sizing if you have a small or medium dog.
What are the main calming ingredients in Solliquin?
The formula centers on L-theanine, magnolia and phellodendron bark extract, and whey protein concentrate, ingredients commonly used together in calming supplements for everyday stress.
Can this replace a vet visit for severe anxiety?
No. This is a calming supplement meant to support mild, everyday stress, not a treatment for a diagnosed anxiety condition. Talk to your vet if your dog's anxiety is severe or persistent.
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