How Hair, Skin, and the Sebum Layer Protect Our Pets
Skin is the largest organ of the body and is a barrier. This barrier protects the body by keeping bad things out while keeping the good things in. Commonly we miss the fact the barrier works both ways. For example, it is a conventional thought among groomers that nutrition controls all skin conditions. Although it does play a big role, it is not the whole answer. The nutrients in conditioners we use while bathing a pet affect the skin much more rapidly than what we feed them orally. To test this, think about how many glasses of water you would need to drink to hydrate your dry hands verses putting on a good hydrating hand lotion.
Hair, for animals, is comparable to human’s thick skin and calluses. It provides a protective “armor” for our pets against toxins, dehydration, and environmental and mechanical stress, including temperature. While the hair and skin protect the animal, the sebum layer protects the skin and hair. The sebum layer is made up of fatty acids and oils that coat and protect the skin and hair. It is produced by the sebaceous gland associated with the hair follicle itself. As the hair moves, it moves the sebum up the hair shaft and over the skin. The sebum is not only water resistant but it is also anti-bacterial and anti-fungal barrier. As a groomer, or pet owner, it is important to understand how you can maintain and enhance this protection. Using the proper grooming products and techniques to provide and keep a healthy sebum layer will, in itself, prevent dry itchy skin and hair issues.
Signs the Skin Barrier Is Damaged
- Dry, flaky or itchy skin, often mistaken for allergies
- A dull, brittle or tangled coat
- Greasy skin that returns soon after bathing
- Recurring bacterial or yeast infections
- Pale, dry-looking skin rather than a healthy pink
How to Protect and Restore the Sebum Layer
- Choose gentle cleansers that remove dirt without stripping all of the skin’s oil. See why use a gentler shampoo.
- Condition after every bath to replace the oils removed. See why replace the sebum layer.
- Never brush a dry coat. Mist with a hydrating spray first.
- Avoid over-bathing with harsh products. For routine care, the skin cycle of about 21 days means bathing every 3-4 weeks is usually enough.
- Support the skin from both sides. Good nutrition matters, but topical hydration from conditioners reaches the skin much faster.
Nutrition vs. Topical Care
Diet plays a real role in skin health, but it is not the whole answer. Just as drinking water will not quickly fix dry, cracked hands while a good lotion will, the nutrients in a conditioner act on the skin and hair much faster than food. The best results come from combining a good diet with proper bathing and conditioning.
Learn more in how a proper conditioner protects the hair and the science behind skin and coat care.
Frequently Asked Questions
What does the sebum layer do for a dog’s skin?
The sebum layer is a film of fatty acids and oils that coats the skin and hair. It is water resistant and acts as an anti-bacterial and anti-fungal barrier, protecting against dryness, itching and infection.
Is diet or bathing more important for dog skin health?
Both matter. Diet supports the skin over time, but conditioners and topical care act on the skin and hair much faster, so the best results come from combining them.