What’s the Deal with Tear Stains?

Why They Turn Rusty, and What You Can Actually Do About Them

If you’ve got a white or light-colored dog — like a Maltese, Poodle, or Shih Tzu — you’ve probably noticed those rusty-looking streaks under their eyes. They’re called tear stains, and while they’re super common, they can be frustrating to deal with.

Let’s talk about what causes them, why they turn that weird rust color, and what actually works to get rid of them (hint: it’s not magic wipes).

💧 So, What Causes Tear Stains?

Tear stains are basically the result of excess tear production. Your dog’s tears are supposed to drain through little ducts into the nose and throat. But when those ducts are blocked, shallow, or just not functioning well (which is common in small or flat-faced breeds), the tears spill out onto the fur instead.

That constant moisture leads to staining, irritation, and sometimes even a bit of odor or skin gunk.

🧪 Why Do They Turn That Reddish-Brown Color?

Here’s where it gets a little science-y: your dog’s tears contain something called porphyrins — a natural compound that contains iron. When these porphyrins are exposed to air, they oxidize, and that’s what causes that rusty red or brown discoloration. It’s not blood or dirt — it’s literally iron breaking down on the fur.

Fun fact: Porphyrins are also found in saliva and urine, which is why licking and chewing can cause similar staining on paws or legs.

✂️ Can’t I Just Shave It Off?

Honestly? Sometimes yes — and that’s exactly what many groomers (myself included) do. When tear stains build up and harden, the fur underneath gets crusty and matted. In those cases, it’s usually best — and most comfortable for your dog — to gently trim or shave the stained fur away.

It’s not a cure, but it does give your dog a clean slate. From there, you can work on managing the cause and preventing future stains.

🧴 Do Products Like Angel Eyes Work?

Products like Angel Eyes can help — but they’re not instant fixes. Angel Eyes works from the inside out. Some owners see results after consistent use, while others don’t see a major difference. Every dog is different, and it may take some trial and error. Just make sure to choose a product without harmful additives, and always check with your vet before starting any supplement.

🧼 What Else Can Help?

Here are a few other things that can make a difference:

    •    Daily face wiping with a soft, damp cloth or tear-stain remover

    •    Keeping eye fur trimmed so moisture doesn’t build up

    •    Checking for allergies or blocked tear ducts with your vet

🐶 Keep Those Eyes Bright

Tear stains might be a fact of life for some dogs, but they don’t have to take over your pup’s cute face. A mix of regular grooming, daily care, and the right products can go a long way in keeping things clean and comfortable.

If you’re noticing buildup, rust-colored streaks, or matting around the eyes, it’s probably time for a clean-up. I’m here to help with safe trimming, gentle cleaning, and practical advice that actually works for your dog.

Let’s keep those eyes as bright and clean, as well as the rest of your pup.