Please place orders prior to Thursday June 29th to ensure shipment in advance of the holiday. Click here for more info.

VetriScience will be closed Monday 12/25 through Monday 1/1 for our holiday shutdown. Orders placed during this time will be shipped after we reopen for business on Tuesday, 1/2.

Due to a high number of holiday orders, we are temporarily pausing the ability to place new orders on We're currently working to get all of the orders that have been placed out the door as quickly as we can. We'll begin accepting new orders again soon. You can still purchase products from many of our retail partners. See more details here.

Frequently Asked Questions

How to Purchase

Where can I buy VetriScience® products?

VetriScience® products are sold online and in stores. You can buy products directly through our website, on e-commerce sites like Amazon and >Chewy, or through national and independent pet retailers. Please visit the Ways to Buy page to select your preferred retailer. VetriScience® Pro Line products are available at many veterinary clinics and can be purchased online through

If I live outside the United States, how can I purchase VetriScience® products?

VetriScience® products are sold internationally through online retailers such as Amazon. Please contact us via email at to determine availability in your location.

Where can I buy VetriScience® Pro Line products?

VetriScience® Pro Line pet supplements are primarily sold through veterinary clinics. Please use the Find a Vet tool to locate a vet near you that carries our products. If your veterinarian offers an online pharmacy, Pro Line supplements may also be available through their system. (Note that online pharmacy availability may not show up in the Find a Vet tool.) Pro Line supplements are also available online through

Do I need a prescription for VetriScience® Products?

Our products are supplements, not drugs or medications. Therefore, no prescription is required to purchase VetriScience® products either online or through your veterinarian.

Tax & Shipping

How much is shipping from

Shipping is free for orders $35+ on within the U.S. Orders under $35 will be charged a flat rate of $6.99 for shipping. This includes Alaska, Hawaii and Puerto Rico, as well as to U.S. Armed Forces who are based in locations globally. See full Shipping & Returns Policy details here.

When will I receive my order from

Our goal is to deliver your purchase in the quickest, most economical way possible. Orders will be processed and shipped within 5 business days from our warehouse in Vermont, and are typically delivered within 1–5 business days within the U.S. including Alaska, Hawaii, Puerto Rico and U.S. Armed Forces who are based in locations globally. You can check the status of your order by going to your Account and viewing Recent Orders, or by going to the Check Order Status page and entering your name, order confirmation number, and your email. If your order has a tracking number and you have questions about delivery, please reach out to the carrier for more information.

How will sales tax be calculated?

Sales tax is calculated based on the tax rate within the state or different jurisdictions within that state if applicable. In states where we collect sales tax, orders will now include the calculated sales tax based on the total order.

My order was damaged during shipping, what should I do?

Damage to products is ultimately the responsibility of the carrier. If you notice damage to the package upon delivery, have the driver note “damaged” on the delivery sheet. Call your local carrier's office immediately so an inspection can be made. Then, call us at 1-800-882-9993 with your name and invoice number (which can be found in your order confirmation email). See full Shipping & Returns Policy details here.


How do I see my subscriptions?

You can see all your VetriScience®️ subscriptions by logging into your account and visiting My Subscriptions. This page shows Active, Paused, and Canceled subscriptions. To view more information about each specific subscription, click "Manage".

How do I edit, cancel, or change my subscription?

Click "Manage" on any subscription to edit. From this page, you can Pause or Cancel a subscription. Click "Edit" to change payment information or shipping address. Payment information can be adjusted or added in "My Payment Options" first, and then go to "Edit" on your subscription you can update the subscription to use the stored payment method you recently updated. For changing addresses, update the address in the "Address Book" first and then go to "Edit" on your subscription and used the stored address you recently updated. If you want to change the type of product, quantity of product, or number of total products in your subscription, you will need to cancel your current subscription and create a new one with the flavors and quantity of products you want.

Can I combine subscriptions?

At this time, it's not possible to add products to an existing subscription. To combine separate product subscriptions into one, you must cancel your current existing subscription(s) and start a new one with all the products that you would like.


What is VetriScience®'s return policy?

Merchandise may be returned (if in original unopened condition) within 45 days of the purchase date. Please contact Customer Care at 1-800-882-9993 and we will help you begin the return process. See full Shipping & Returns Policy details here.

Does VetriScience®️ offer a satisfaction guarantee?

Our 100% Satisfaction Guarantee means that we will replace or refund any product you're not completely satisfied with. For your order to qualify, you must have purchased it through an authorized seller, have the lot number and original sales receipt, and request a refund/replacement within 45 days of purchasing and before the product's expiration date. See full Shipping & Returns Policy details here.

My pet won't eat the product, can I get a refund?

Picky pets may need some encouragement! However, if your pet won't eat the supplement after trying our tricks, you can return the product for a full refund. For your order to qualify for our 100% Guarantee policy, you must have purchased it through an authorized seller, have the lot number and original sales receipt, and initiate the return within 45 days of purchasing. See full Shipping & Returns Policy details here.

The product looks, feels, or smells different than the last time I purchased. Can I return it?

Because we use naturally sourced ingredients without excess fillers and preservatives, it's common and expected to see a slight variation in color, texture, and smell from one batch to the next. However, if the product is severely discolored, crumbled or otherwise damaged, or has an excessively bad smell, you do have the option to return or replace it. See full Shipping & Returns Policy details here.

General Product Questions

Are your products made in the USA?

Our products have been manufactured from our facilities in Vermont for over 40 years. Our manufacturing facilities are SQF-certified and strictly adhere to NASC guidelines and Current Good Manufacturing Practices (cGMP) as defined by the Food and Drug Administration.

Where are your ingredients sourced from?

The ingredients used in VetriScience® supplements are sourced in the U.S. and globally. Our ingredient suppliers must undergo a rigorous application process to ensure their raw materials meet our strict quality standards. All of our ingredients are third-party tested to guarantee quality and purity. VetriScience® products are formulated to comply with regulations set forth by The Association of American Feed Control Officials (AAFCO) and the National Animal Supplement Council (NASC).

Do you test on animals?

VetriScience® does participate in clinical trials to determine the efficacy of our products. These trials are voluntary, and pets that participate are enrolled by their veterinarian and pet parent. We also use our own pets to “taste test” all our supplements and make sure your pets will love them!

Can I use dog products for cats and vice versa?

We do not recommend off-label usage of any of our products. We take great care to formulate each product to be specific to the needs of cats or dogs, from nutrients to flavors.

How much should I give to my dog or cat?

Dosing instructions located on the back of the package or bottle and on each of our product pages.

Can I increase my pet's dosage?

Increasing your pet’s dose is not recommended unless specifically noted on the packaging. For example, it is suitable to double or triple the dosage of Composure™ during times of heightened stress.

What if my pet doesn't want to eat the supplement?

Every product undergoes strict palatability testing before we put it on the market, but picky pets may still need some encouragement! Try breaking chews into smaller pieces, mixing supplements into food, softening with water or low-sodium broth, or sprinkling something aromatic (like catnip or a meal topper powder) into the bag to add an enticing scent or taste booster. For dogs, you can use pill-hider chews for capsules or tablets.

If your pet still won't eat the supplement, you can return the product for a full refund. See full Shipping & Returns Policy details here.

Where is the expiration date on the package or bottle?

The expiration date is located next to the lot number on the back of the package or bottle. The lot # are 8-9 digits long, then a space, then 4 more digits indicating month and year. For example: a product with numbers 999999999 0121, would expire in January 2021. We do not recommend usage after the expiration date.

Can more than one VetriScience® product be used at the same time?

In many cases, VetriScience® products can be administered simultaneously without issue. However, we always recommend consulting with your veterinarian to determine if the combination is suitable for your cat or dog.

My package was not properly sealed, what should I do?

Although this is a very rare occurrence, please return the product to the original retailer if it’s improperly sealed. They will provide you with a replacement product at no cost to you. Please contact us at 1-800-882-9993 should you have any difficulty with this process.

What should I do if your product made my pet sick or they consumed too much?

We take poor reactions to our products very seriously. Since our products are supplements, they’re typically well-tolerated by cats and dogs. However, if your pet had too many, they may experience digestive upset since the high nutrient levels in products can be too rich for their stomach. If our products made your pet sick, please contact our customer care team to 1-800-882-9993 report this issue so we can further assist you with this matter. If you have more immediate concerns, please contact your veterinarian immediately as soon as possible.

Are these products considered treats?

VetriScience® offers a line of condition-specific supplements including beneficial levels of vitamins, minerals, and other dietary compounds. Supplements are not formulated to be used as a treat or training aid.

My product was exposed to extreme heat during shipping and delivery. Is it still safe?

Short term exposure to extreme elements should not affect the product. Stability studies show that any changes to products during shipping are minimal. However, if your product smells rancid or appears discolored, please contact us at 1-800-882-9993 to report this issue. If you believe our products made your pet sick, please contact us at the same number to report this issue so we can further assist you with this matter. If you have more immediate concerns, please contact your veterinarian as soon as possible.

Do VetriScience® products require refrigeration?

Refrigeration of our products is not recommended unless specifically noted on the packaging. Products should be stored in a cool, dry place.

Specific Product Questions

Joint & Mobility

Are joint supplements necessary for pets?

Maturing pets experience considerable wear and tear on their joints. A decrease in the production of joint fluid can contribute to joint discomfort, which is common in both dogs and cats. A strong inflammatory response isn’t always apparent, as pets are often seen as "slowing down due to age" rather than slowing down due to discomfort. In many cases, the utilization of joint supplements can help improve the inflammatory response and improve quality of life at any age.

When should I start giving my pet joint supplements?

You can start giving pet joint supplements at any age! Our GlycoFlex® Stage 2 and Sport supplements are ideal for both young and adult pets who aren't yet showing signs of joint discomfort. It's strongly recommended to give an advanced joint supplement, like GlycoFlex® Stage 3 or GlycoFlex® Plus, at senior age or as soon as your pet starts to show signs of joint discomfort.

Symptoms of joint discomfort may include limping and vocalizing but are often more subtle. Your pet may sleep more or start to struggle with everyday activities like walking and jumping. They may have a harder time standing up. Keep an eye out for signs of discomfort like trembling, irritability, loss of appetite, hiding, or licking of the affected joint.

Can I just give my pet an over-the-counter glucosamine supplement?

Glucosamine is one common component found in many over-the-counter (OTC) supplements. However, GlycoFlex® is formulated specifically for pets and contains additional active ingredients that work together with glucosamine to provide better support.

Be aware that many OTC glucosamine supplements fail to prioritize quality and safety in their products. Fortunately, VetriScience® has received certification from the NASC (National Animal Supplement Council) that reflects our commitment to quality, efficacy, and purity. GlycoFlex® is made in an SQF-certified facility and manufactured in the U.S. with the highest quality ingredients sourced from around the world.

What does GlycoFlex® do for dogs and cats?

GlycoFlex® works with your pet's body to promote healthier cartilage and joints, support a healthy inflammatory response, and support limb strength and mobility. For pets who are already showing signs of joint discomfort, GlycoFlex® joint supplements can help restore their comfort and vitality. For pets not showing signs of discomfort, GlycoFlex® can keep joints healthier, longer.

Does GlycoFlex® actually work?

We have numerous testimonials and an extensive history of success with GlycoFlex®. There are over 14 clinical trials and research studies on GlycoFlex® and its active ingredients.* Safety and effectiveness are keys to successfully supporting the treatment and GlycoFlex® has been clinically shown to be effective.*

Is GlycoFlex® safe for dogs and cats?

While we always encourage you to consult your veterinarian whenever you consider a new supplement, results from a clinical study showed that GlycoFlex® had no adverse biochemical, hematologic, hemostatic, physiological, immunological, or allergenic effects on dogs. GlycoFlex® doesn’t require a prescription, can be purchased at many pet stores or online, and is safe to give to most pets. You can feel comfortable starting your cat or dog on a GlycoFlex® joint support product today!

What are the ingredients in GlycoFlex®?

GlycoFlex® Plus, our most powerful formula, contains a unique combination of 11 active ingredients, including GlycOmega® brand Perna canaliculus (green-lipped mussel), DMG, glucosamine, chondroitin, and MSM. All ingredients in our GlycoFlex® line of joint support products have been extensively studied to demonstrate their effectiveness in cats and dogs. This unique combination of ingredients helps to reduce pain and inflammation while providing the building blocks to support recovery and healing.

Is green-lipped mussel good for pets?

Green-lipped mussel, also known as Perna canaliculus, is packed with healthy nutrients like omega-3 fatty acids and natural glycosaminoglycans—compounds including glucosamine and chondroitin that can improve joint health and a healthy inflammatory response. Several studies have been performed to test the efficacy of supplementing with green-lipped mussel and found that this super shellfish can have a significant impact on comfort and mobility.

How long does it take for GlycoFlex® to work?

Typically, it takes 4 - 6 weeks to see the full effect of GlycoFlex® in your pet. However, when used as recommended, you may start to see gradual improvements in comfort, mobility, energy, and attitude within the first few days!

Which GlycoFlex® joint supplement should I give my pet?

We always recommend consulting your veterinarian to decide which supplement will be the best for your unique pet's health needs, however we do have general recommendations:

  • GlycoFlex® Stage 2: Any dog or cat who is not showing any signs of joint discomfort
  • GlycoFlex® Stage 3: Any dog or cat showing any signs of joint discomfort
  • GlycoFlex® Plus: Any dog or cat in need of powerful joint support

Does GlycoFlex® expire?

On all VetriScience® products, the expiration date is located next to the lot number on the back of the package or bottle. The lot number is 8-9 digits long, then a space, then 4 more digits indicating month and year. For example: a product with numbers “999999999 0125” would expire in January 2025. We do not recommend usage of GlycoFlex® after the expiration date.

If you have any additional questions, please contact us.

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