why a dog's coat may be dry and dull

Diets lacking healthy fats can lead to dullness. Omega fatty acids are vital.

Nutritional Deficiencies  

Food or environmental allergies cause unpleasant itching and coat damage from over-grooming. 

Allergies   

Hormonal changes in old or spayed/neutered dogs impact coat health over time.  

Age and Hormones

Frequent bathing strips protective oils leading to dryness and a disrupted moisture barrier.   

Bathing Too Often   

Dry winter air or excessive sun exposure without protection roughens coats.  

Sun and Seasons  

Stress hormonally alters coat quality and shedding patterns.

Stress and Anxiety  

 External and internal parasites make fur appear unhealthy. Treat hot spots. 

Parasites

Should Cats Be Regularly Dewormed?