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Thomas Labs I-Stain: Review




Thomas Labs I-Stain Overview:

Tear stains that are red in color can be unsightly and often make your pet look un-groomed. This is why you need to consider using a tear stain formula to help reduce the look of crusty eye stains and prevent bacteria from continuing to accumulate.

Thomas Labs I-Stain powder is promoted to diminish the look of red yeast stains that are staining fur on your dog or cat near the eyes. This product is promoted as natural and antibiotic-free tear stain formula that supports probiotics and optimizes pH balance.

As stated by the manufacture, Thomas Labs I Stain works from the inside out to offer long lasting visible results. The natural ingredients inside this tear stain formula are promoted to support probiotics. Thomas Labs Eye Stain tear stain formula does not contain dangerous antibiotics like Tylosin.

I Stain is sold in a 12 ounce jar for only $19.99. This powder based formula appears to be cost-effective. We feel that formulas that cost less than $50 online and do not contain Tylosin are some of the safest and more affordable approaches.

When it comes to administering the daily dosage of I Stain, this will depend on your dog or cats weight. Be sure to administer the product accordingly to avoid side effects and to achieve best results. Results can vary for every pet, as each pet is different.

Product Characteristics:


  • 1476408445_tick_mark_dark  Intended for red yeast eye stains
  • 1476408445_tick_mark_dark Claims its natural
  • 1476408445_tick_mark_dark Promoted as antibiotic and chemical-free
  • 1476408445_tick_mark_dark Intended for dogs with watery eyes and stains around the eyes
  • 1476408445_tick_mark_dark Sold for an affordable price


  • 1476408453_close_icon_dark Does not state it’s for all breeds



Sizes Available:

12 oz

Directions For Use:

Orally administer 1 teaspoon daily for animals up to 25 Lb; 2 to 3 teaspoons daily for animals over 25 Lb. Can be given during or after mealtime. For use in dogs and cats.

Ingredients List:

Active Ingredients per scoop (2.8 g):
Calcium (from Calcium Carbonate)…………. 395 mg
Colostrum (from Bovine)………………………...... 56 mg
Amylase....................................... 49,500 USP
Protease...................................... 43,400 USP
Lipase........................................... 5,684 USP
Lactobacillus acidophilus…..………. 100 Million CFU
Inactive Ingredients:
Dry milk replacer base (dried skimmed milk, dried whey, dried whey product, dried milk protein, colostrum, fat, lecithin, vitamin A acetate, d-activated animal sterol (source of vitamin D3), dl-alpha tocopherol acetate (source of vitamin E), riboflavin supplement, vitamin B12 supplement, niacin, choline bitartrate, biotin, folic acid, pyridoxine hydrochloride, calcium pantothenate, zinc proteinate, sodium selenite, chelated trace minerals (ferrous sulfate, cobalt sulfate, magnesium sulfate, manganese sulfate, copper sulfate, zinc sulfate, ethylenediamine dhydriodide, citric acid and disodium ethylene diamine triacetate)

Where is Product Manufactured:

Made in the USA

Negatives on Thomas Labs I-Stain:

Thomas Labs I Stain is marketed for dogs and cats with tear stains, but there is no information suggesting it is for all breeds. You should elect tear stain formulas that are safe for all dogs and cats. Be sure to use Eye Stain by Thomas Labs as directed for best results.

Final Thoughts on Thomas Labs I-Stain:

Thomas Labs I-Stain does not contain the antibiotic Tylosin and it is sold at an affordable price online. However, there is no information suggesting that this product is suitable for all breeds. To see how Thomas Labs I-Stain compares to other cost-effective tear stain products, see our grid below.

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