All About Dogs

What Makes Hypoallergenic Dog Hair and Dander Different?

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By LITTLE PUPPY PAWS | July 17, 2023
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Ever wondered why some dogs are touted as hypoallergenic? Are you curious about what makes hypoallergenic dog hair and dander different from those of other breeds?

Hypoallergenic dogs are breeds that are less likely to trigger allergies, primarily because they produce fewer allergens found in hair and dander. Their unique coat and skin characteristics, coupled with certain genetic traits, contribute to a lesser degree of allergen production and release.

The Science Behind Hypoallergenic Dogs

Hypoallergenic dogs are breeds that produce fewer allergens, making them less likely to incite allergic reactions. Allergens are substances that can trigger an allergic response when an allergy-prone individual’s immune system reacts to them. In the case of dogs, these allergens are predominantly found in their hair and dander. However, they can also be present in dog saliva and urine. The frequency of these allergenic substances in hypoallergenic dogs is markedly lower than in other breeds, making them a viable choice for people with allergies.

The Role of Genetics in Hypoallergenic Breeds

It’s not by chance that some dogs are hypoallergenic. The genetic makeup of hypoallergenic dogs has a profound impact on their allergenic properties. Every breed of dog has its unique genetic blueprint, which determines various physical characteristics, including the type and amount of hair and dander the dog produces. In hypoallergenic breeds, these genetics influence their hair and skin in such a way that they shed fewer allergens, thereby reducing the likelihood of an allergic response.

Dog Hair versus Dog Dander: What’s the Difference?

When discussing pet allergies, dog hair, and dander are often used interchangeably. However, they are two distinct substances with different impacts on allergy sufferers. Dog hair, as the term implies, comes from the dog’s coat. It is the visible, touchable part of the dog that is often the focus of grooming efforts. On the other hand, dander is composed of tiny, often microscopic, flakes of skin that are shed along with the hair. This is where the primary allergens reside, making dander, not hair, the chief culprit in triggering allergic reactions.

Unraveling the Mystery of Hypoallergenic Dog Hair

One distinct characteristic of hypoallergenic dog breeds is their hair. Unlike many breeds that have fur, hypoallergenic dogs often have a type of hair that leads to less shedding. The distinction between hair and fur lies in its growth cycle and texture. Dog hair is typically finer and grows continuously, akin to human hair. This slower growth and shedding cycle result in fewer allergens released into the environment as the hair, and the dander attached to it, are shed less frequently.

Hair Growth Cycle in Hypoallergenic Breeds

The hair growth cycle in hypoallergenic breeds is essential in understanding why they shed less. Dog hair grows, rests, and eventually falls out, but unlike fur, this cycle is prolonged, leading to less frequent shedding. This means fewer allergens are disseminated around your home, contributing to a more allergy-friendly environment.

Dander Production in Hypoallergenic Breeds

Hypoallergenic dogs are not just known for their unique hair; they also stand out due to their lower production of dander. Certain hypoallergenic breeds have skin that sheds less or flakes less, meaning they produce a reduced amount of dander. This decreased dander production significantly impacts the allergen levels in your environment, further contributing to their hypoallergenic nature.

Allergens in Dander

While dander may seem harmless due to its microscopic size, it carries proteins that can trigger allergic reactions. These proteins are the actual allergens that, when inhaled or coming into contact with the skin, can incite an immune response in individuals with dog allergies. The less dander a dog produces, the fewer of these proteins are present, and the lower the risk of triggering an allergic response. Hypoallergenic breeds produce a lesser amount of these allergenic proteins, making them an ideal choice for people susceptible to dog allergies.

Role of Coat Type in Dander Spread

An often overlooked but crucial aspect of hypoallergenic breeds is the role of their coat type in dander spread. For example, hypoallergenic breeds like Poodles, Bichon Frise, or Portuguese Water Dogs have denser or curly hair. These types of coats tend to trap dander more effectively, preventing it from becoming airborne and spreading around your home. Consequently, the density or curliness of a dog’s hair can affect how much allergenic dander is distributed in your environment, making certain hypoallergenic breeds even more suitable for allergy sufferers.

Impact of Regular Grooming on Allergen Reduction

Regardless of a dog’s breed or its hypoallergenic status, regular grooming plays a pivotal role in managing allergen levels. Regular bathing and brushing not only keep your dog’s coat in good condition but can also help remove dander from the dog’s skin before it has a chance to spread around your home. By grooming your dog consistently, you can significantly reduce the overall allergen load in your home, making your environment more comfortable for allergy sufferers.

Saliva and Urine: Other Sources of Allergens

While dog hair and dander are the primary sources of dog allergens, saliva and urine can also contain allergenic proteins. It’s believed that hypoallergenic dogs produce these proteins in lesser quantities or in forms that are less likely to trigger an allergic reaction. Therefore, the way these dogs produce and spread these less common allergens also contributes to their hypoallergenic properties.

Reducing Exposure to Allergens

While selecting a hypoallergenic breed and keeping up with grooming are critical steps in managing dog allergies, several other strategies can further limit allergen exposure. Using air purifiers can help filter out dander and other allergens from your environment. Restricting pets from certain areas, particularly bedrooms, can ensure you have a safe, allergen-free space to retreat to. Washing pet bedding and soft furnishings regularly can also help in reducing allergen accumulation. By implementing these measures, you can maintain a hypoallergenic environment, reducing the risk of allergic reactions.

Hypoallergenic Dogs and Children

For families with children who have allergies, choosing a hypoallergenic breed can be an excellent choice. These breeds can provide the joy and companionship of a pet while reducing the risk of triggering allergic reactions in sensitive individuals. However, it’s essential to remember that “hypoallergenic” does not mean “allergen-free.” Individual reactions can vary, and some people may still experience symptoms around hypoallergenic breeds. Always spend time with a breed before bringing it into your home to ensure it’s a good fit for your family, particularly if allergies are a concern.


The term “hypoallergenic” signifies breeds that are less likely to provoke allergies, but it’s not a guarantee. While hypoallergenic breeds have specific traits that reduce allergen production, it’s important to remember that individual reactions to allergens vary greatly. Therefore, spend time with a breed before bringing one home to ensure it’s a good fit for your family.

The future of hypoallergenic dogs could potentially see further reductions in allergen production through selective breeding or genetic modifications. As we continue to enhance our understanding of canine genetics, the opportunities for allergy sufferers to live comfortably with their four-legged friends are likely to expand. For now, hypoallergenic breeds, along with mindful grooming and cleaning practices, offer a viable option for dog lovers prone to allergies.