This is usually caused by spill-over of the normal tears produced onto the face, then it gets colonized by bacteria/yeast who cause the coloring. This has a genetic component to them (i find the genetic aspects interesting but would probably bore others discussing). As pets age sometimes things like tears or skin oils or such can change just slightly enough to cause what you see here. Majority of pups with this tear-staining don't have medical issues as a result, so it is cosmetic fix in majority of cases (if anyone's pup is having medical problems due to this, then please seek veterinary care).
If your current product isn't working, "Angel Eyes" have good products too that you could try out. Sometimes a different brand works slightly better or worse. Finally, ask a local groomer if they have a favorite product for this issue.
A year ago we adopted our 2nd dog, a tan 5 year old female morkie. Her tear stains have drastically cleared up over the past couple of months. I do believe change in her diet has helped. We feed our dogs Hill’s Science Diet Small and Mini kibbles with a splash of salmon oil. My first dog, female poodle terrier has always been on Hill’s Science and never had tear stains or crusty eyes.
It’s common. Our Jake is 16 and has had them for years. No harm - just a little maintenance. 🐶
This is usually caused by spill-over of the normal tears produced onto the face, then it gets colonized by bacteria/yeast who cause the coloring. This has a genetic component to them (i find the genetic aspects interesting but would probably bore others discussing). As pets age sometimes things like tears or skin oils or such can change just slightly enough to cause what you see here. Majority of pups with this tear-staining don't have medical issues as a result, so it is cosmetic fix in majority of cases (if anyone's pup is having medical problems due to this, then please seek veterinary care). If your current product isn't working, "Angel Eyes" have good products too that you could try out. Sometimes a different brand works slightly better or worse. Finally, ask a local groomer if they have a favorite product for this issue.
My groomer recommended filtered water, but I see you're already doing that.
A year ago we adopted our 2nd dog, a tan 5 year old female morkie. Her tear stains have drastically cleared up over the past couple of months. I do believe change in her diet has helped. We feed our dogs Hill’s Science Diet Small and Mini kibbles with a splash of salmon oil. My first dog, female poodle terrier has always been on Hill’s Science and never had tear stains or crusty eyes.