Joint Flex Canine half gallon jug, joint support for dogs
Common Questions
Pour it over your dog’s food once a day, dosed by weight: under 30 lbs, 1 tsp · 31–60 lbs, 1–2 tsp · 61–90 lbs, 2–3 tsp · 91+ lbs, 3–4 tsp. One teaspoon is 5 ml.
Joint Flex Canine is a palatable liquid poured over food, so most dogs take it with no fuss.
Anytime. Manage everything in your account or by SMS: pause, change delivery dates, or cancel with no fees and no phone tree.
Many owners notice easier movement within the first few weeks. Joint Flex Canine is daily, long-term support, and you’re backed by our 90-day money-back guarantee.
Joint Flex Canine · Liquid-First Delivery

Mobility starts in the joint.
Liquid delivery makes it work.

Enhances Joint Fluid ViscosityMaintains CartilageSupports Connective Tissue

Dogs face the same joint chemistry problem horses do: synovial fluid depends on hyaluronic acid, and production declines with age. A 2019 study (Lee, M.) found 90% of older dogs, and 20% of dogs as young as 2, cannot maintain sufficient HA in synovial fluid for proper joint lubrication.1

Joint Flex Canine supplies high-molecular-weight hyaluronic acid in liquid form. Research in dogs shows oral HA is absorbed rapidly, uptake beginning in as little as 5 minutes, distributed through the lymphatic system to joints and connective tissue (Balogh, L., 2008).2 In a 2016 clinical study (Carapeda, G.), dogs receiving oral HA showed significant clinical improvement in joint mobility and quality of life.3

1Lee (2019).2Balogh (2008). doi.org/10.1021/jf80170293Carapeda (2016).
★★★★★ 4.9 / 5 697 reviews 9,800+ dogs on product
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Your one-time order includes
  • ✓90-Day Money-Back Guarantee
  • ✓½ gallon (64 oz) of Joint Flex Canine
Joint Flex Canine · ½ Gallon
9,800+Dogs supported
Dr. Peterson, DVMFormulated by
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90-DayMoney-back guarantee
Customer reviews

697 verified reviews from real dog owners.

Every breed. Every age. Real dogs on Dr. Peterson’s formula.

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4.9
★★★★★
out of 5
Based on 697 verified reviews
5 stars
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Real Joint Flex Canine Stories

Real Dogs. Real Change.

The owners who watched it happen, in their own words.

My German Shepard was hit by a car when he was four months old. He shattered his pelvis in three places. He has had two surgeries and has a metal plate keeping him pinned together. After his second surgery they discovered he has the start of hip dysplasia due to the trauma he went through. I put him on the 100x joint canine for dogs last summer and it has done wonders for him. He runs and plays like a puppy again. …

Jennifer K.Verified buyer

We started our 13 year old Australian Shepherd on Joint Flex Canine a month ago. He was really struggling to get up and down and generally just laying around. He is now able to get up easily and even trots around the yard like he used to making his rounds! We are all so excited to see him perk up and experience a better quality of life at his age!

Kandice A.Verified buyer

I use Joint Flex with my 12 1/2 year old Labrador. Within 1 week or starting Joint Flex, you could notice a significant difference in his mobility. He is walking better and able to safely get on/off the couch. He actually ran in the back yard, which he has not done in over a year. He seems more comfortable and willing to play with his dog buddy now.

Marcia F.Verified buyer

This stuff works great! I have 3 dogs, different ages and when they have a problem with their legs I give them this. It takes care of it quickly. …

Wendy G.Verified buyer
Liquid vs. chews & powders

Why form is the whole game.

The actives aren’t the differentiator, delivery is. Here’s how liquid stacks up against the chews and powders most dog owners use.

Joint Flex Canine · Liquid
Chews
Powders
Goes to work
On contact
Must be digested first
Must be digested first
Dose accuracy
Measured tsp by weight
Per-chew guesswork
Dogs eat around it
Picky-eater approved
Yes
Hit or miss
Hit or miss
Form
Pre-dispersed liquid
Dry, must break down
Dry, must break down
Ingredients

What’s in the jug, and why it’s there.

Every active in Joint Flex Canine is named and dosed on the label. No proprietary blends.

Hyaluronic AcidHyaluronan

High-molecular-weight hyaluronic acid in a liquid carrier. Hyaluronic acid is a natural component of synovial fluid and cartilage.1

442
mg / tsp

SiliconAs orthosilicic acid

Orthosilicic acid is the bioavailable form of silicon, supplied already in solution. Silicon is used in the collagen that cartilage and connective tissue are built from.

250
mg / tsp

Inactive ingredients: Glycerin, Natural Preservatives, Methylcellulose, Water.

See the full label
References
  1. 1Balogh, L., Polyak, A., Mathe, D., et al. (2008). Absorption, uptake and tissue affinity of high-molecular-weight hyaluronan after oral administration in rats and dogs. Journal of Agricultural and Food Chemistry, 56(22), 10582–10593. doi.org/10.1021/jf8017029
The Protocol

Dosed by weight, once a day.

Pour it over your dog’s food once daily. Measure by weight, exactly as the label directs.

Under 30 lbs1 tsp / day
31–60 lbs1–2 tsp / day
61–90 lbs2–3 tsp / day
91+ lbs3–4 tsp / day

1 tsp = 5 ml.

Dr. Russ Peterson, DVM, Chief Veterinary Officer, 100X Equine
Chief Veterinary Officer

Nearly five decades of veterinary medicine, in one jug.

The Veterinary Standard Behind 100X

Dr. Russ Peterson, DVM, MS, DACVSMR, Cert. ISELP brings nearly five decades of veterinary medicine, sports medicine, rehabilitation, nutrition, and clinical decision-making to 100X.

As Chief Veterinary Officer, Dr. Peterson helps guide the clinical thinking behind every 100X formula, from ingredient selection to dosing strategy to how those actives are delivered.

Joint Flex Canine reflects that standard: high-molecular-weight hyaluronic acid in a liquid carrier built to keep it stable, dispersed, and ready for biological contact.

Board-certifiedSports Medicine & RehabilitationNutritionFormulation Science

90-Day Money-Back Guarantee

Give it daily for 90 days. If you don’t see the difference, we refund you.

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Still deciding

Questions, answered.

Pour it over your dog’s food once a day, dosed by weight: under 30 lbs, 1 tsp · 31–60 lbs, 1–2 tsp · 61–90 lbs, 2–3 tsp · 91+ lbs, 3–4 tsp. One teaspoon is 5 ml.
Joint Flex Canine is a palatable liquid poured over food, so most dogs take it with no fuss.
Anytime. Manage everything in your account or by SMS: pause, change delivery dates, or cancel with no fees and no phone tree.
Many owners notice easier movement within the first few weeks. Joint Flex Canine is daily, long-term support, and you’re backed by our 90-day money-back guarantee.
The full lineup

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Put your dog on the protocol.

Start with Joint Flex Canine. 90-day money-back guarantee and free shipping.

Start with Joint Flex Canine
Joint Flex Canine half gallon jug, joint support for dogs
Joint Flex Canine back label: hyaluronic acid and silicon per teaspoon, directions by weight, cautions and warnings
Joint Support for Dogs

Joint Flex Canine

★★★★★4.9 / 5697 reviews9,800+ dogs on product

Liquid joint support for dogs. Mobility starts in the joint.

Subscriptions from

$85.49/jug

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  • Joint fluidEnhances joint fluid viscosity.
  • CartilageMaintains cartilage.
  • Connective tissueSupports connective tissue.
Hyaluronic acidOrthosilicic acidLiquid delivery
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Joint Flex Canine
Product details
Hyaluronic AcidHyaluronan442mg / tsp
High-molecular-weight hyaluronic acid in a liquid carrier. Hyaluronic acid is a natural component of synovial fluid and cartilage.1
SiliconAs orthosilicic acid250mg / tsp
Orthosilicic acid is the bioavailable form of silicon, supplied already in solution. Silicon is used in the collagen that cartilage and connective tissue are built from.

Inactive ingredients: Glycerin, Natural Preservatives, Methylcellulose, Water.

See the full label
References
1Balogh et al. (2008). 10.1021/jf8017029
Under 30 lbs
1 tsp / day
31–60 lbs
1–2 tsp / day
61–90 lbs
2–3 tsp / day
91+ lbs
3–4 tsp / day

1 tsp = 5 ml.

Many owners notice easier movement within the first few weeks. This is daily, long-term joint support, not a quick fix.

FREE delivery …. Order within …

The comparison

Why form is the whole game.

The actives aren’t the differentiator, delivery is.

Joint Flex Canine liquidChews & powders
Delivery form
Pre-dispersed liquidDry, must break down
Goes to work
On contactMust be digested first
Dose accuracy
Measured tsp by weightPer-chew guesswork
Picky-eater approved
YesHit or miss
The science

Why hyaluronic acid.

Dogs face the same joint chemistry problem horses do: synovial fluid depends on hyaluronic acid, and production declines with age. A 2019 study (Lee, M.) found 90% of older dogs, and 20% of dogs as young as 2, cannot maintain sufficient HA in synovial fluid for proper joint lubrication.1

Joint Flex Canine supplies high-molecular-weight hyaluronic acid in liquid form. Research in dogs shows oral HA is absorbed rapidly, uptake beginning in as little as 5 minutes, distributed through the lymphatic system to joints and connective tissue (Balogh, L., 2008).2 In a 2016 clinical study (Carapeda, G.), dogs receiving oral HA showed significant clinical improvement in joint mobility and quality of life.3

1Lee (2019).2Balogh (2008). doi.org/10.1021/jf80170293Carapeda (2016).
Who formulates it
Dr. Russ Peterson, DVM
Dr. Russ Peterson, DVM
MS · DACVSMR · Cert. ISELP
Chief Veterinary Officer

Nearly five decades of veterinary medicine, rehabilitation and nutrition. Joint Flex Canine reflects that standard: high-molecular-weight hyaluronic acid in a liquid carrier built to keep it stable, dispersed, and ready for biological contact.

100% Satisfaction Guarantee

Start the protocol

Pour it over food once a day. Give it for 90 days, and if your dog is not doing better, we refund you.

Subscribe & Save

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