05/06/2025
Today was a bit of a hectic day, not even photos of the cuties but still a good day!!
So let's talk THE BIOLOGY BEHIND THE BEAUTY
đŹ The Biology Behind the Beauty: Inside the Hair Shaft
Understanding what lies beneath the shine.
Beneath every beautifully groomed coat lies a biological marvelâeach hair strand is a sophisticated structure built for strength, flexibility, and protection. We believe healthy grooming starts with understanding that structure, from cuticle to core.
đ§ą The Three Layers of the Hair Shaft
1. The Cuticle
The outermost layer, made of overlapping scale-like cells. Think of it like armorâit shields the inner hair shaft while creating that natural sheen when it lies flat.
đ When damaged or lifted: Hair becomes dull, rough, and prone to tangling or breakage.
2. The Cortex
This is the thickest, most integral part of the strand. It contains tightly packed keratin proteins, moisture-binding structures, and pigment granules. The cortex determines the coatâs elasticity, strength, and even its color.
đ When compromised: Hair loses resilience, becomes brittle, and appears faded or lifeless.
3. The Medulla (if present)
The innermost layerâoften a hollow or sponge-like core. But hereâs where things get interesting: not all dogs have one, and whether it forms often depends on coat color and texture.
đ§Ź What Does the Medulla Actually Do?
The function of the medulla is still somewhat mysterious, but itâs believed to aid in:
⢠Thermal insulation
⢠Light reflection
⢠Structural rigidity
𦴠Texture:
Coarse or double-coated breedsâlike Huskies or German Shepherdsâusually have a defined medulla, especially in their guard hairs. It contributes to the coatâs stiffness and volume.
đ¨ Color & Structure:
White or pale-coated breedsâsuch as Bichons, Maltese, and Poodlesâoften lack a visible medulla, especially in their softer undercoat or furnishings.
Why? Because white hairs contain no pigment (melanin) in the cortex. Without pigment to stabilize the strand, the medulla may never formâor may collapse, leaving a hollow or absent core. This makes white coats:
⢠More flexible and light-reflective
⢠But also more prone to dehydration and breakage
đ§ So, if your dog has a white coat, its hair likely lacks a medullaâand thatâs perfectly normal.
đż Why Hair Structure Matters in Grooming
Each layer of the hair shaft plays a role in coat health:
⢠The cuticle protects and shines
⢠The cortex provides strength, texture, and elasticity
⢠The medulla (if present) affects structure and resilience
Understanding this architecture helps us treat the coat holisticallyânot just cleaning the surface, but supporting whatâs beneath.
đ§Choose the Right Line for Your Dog
Because healthy coats arenât just born. Theyâre builtâcuticle to core.