Below is a comparison of Missing Links Joint and "Joint Support"
Missing Link Ingredients:
Ground Flaxseed (some dogs can be sensetive to flax and it may make them itch)
, Glucosamine Hydrochloride, Freeze Dried Beef Liver, Cane Molasses (although Molasses does have beneficial properties it is a sugar and is in the top 5 ingredients)
, Rice Bran, Primary Dried Yeast (yeast does have beneficial properties but can also make a dog itch)
, Sunflower Seed, Dehydrated Alfalfa Meal, Dried Carrot, Ground Beef Bone, Dried Fish Solubles (UN-Named source of fish)
, Freeze Dried Oyster, Ground Barley Grass, Dried Kelp, Zinc Methionine Complex, Lecithin, Selenium Yeast, Pyridoxine Hydrochloride (Vitamin B6), Niacin (Vitamin B3), Garlic, Taurine, Yucca Schidigera Extract, Riboflavin (Vitamin B2), Thiamine Hydrochloride (Vitamin B1), Folic Acid and Vitamin B12 Supplement.
This is one of the supplements I use and feel it has a better ingredient list.
a proprietary all natural ingredient derived from natural eggshell membrane rich in elastin, collagens and glycosaminoglycans such as Chondroitin sulfate and glucosamine. Supports the stability and flexibility of joint as well as skin and coat.
Cetyl Myristoleate Complex (CM8):
is a potent joint lubricant. By keeping joints lubricated, wear and tear takes less toll on joints. Contains the highest and most bio-available concentration of Cetyl Myristoleate available.
Biocell Collagen II TG:
comes from chicken cartilage and contains the greatest number of joint supporting proteoglycans of all the forms of collagen. Creating a fibrillar network of collagen allows the cartilage to entrap the proteoglycans and provide tensile strength to the surrounding tissue.
provides two essential substances: Sulfur-a building block of joints, cartilage, nerve tissue, skin, hair, and nails. The sulfur in MSM helps promote flexibility, elasticity of body tissue and helps maintain cell membrane permeability. It is also an antioxidant.
Methyl groups: support many vital biochemical processes in the body including energy production.
a proteolytic enzyme from fresh pineapple which promotes a normal immune response in human and animals.
a powerful antioxidant
GMO Free. Gluten Free. Soy Free.
Joint Support For Pets - Mercola.com
Hope this helps!