Are you using scented shampoo on your dog? You need to know something before doing it again.

is it really 100,000 times more sensitive?

It's a staggering number, isn't it?

Yet, scientifically speaking, it's not an exaggeration at all. In fact, depending on the breed, a dog's olfactory sensitivity can exceed that of humans by a factor of 10,000 to 100,000 times.

Here's the biological evidence and data that explain this "superpower":

1. The number of olfactory receptors

The numerical comparison is striking. While humans are equipped with about 5-6 million olfactory receptors, dogs possess an immensely greater quantity:

• Dachshund: approximately 125 million.

• German Shepherd: approximately 225 million.

• Bloodhound: up to 300 million.

2. Brain architecture

A dog's brain is about one-tenth the size of a human's in terms of total dimensions, but the section dedicated to odor analysis (the olfactory bulb) is, proportionally, 40 times larger than ours. Dogs don't just "smell" an odor; they process it with almost visual precision.

3. Flow separation (Olfactory Recess)

When we inhale, we use the same pathway for breathing and smelling. In dogs, a fold of tissue inside the nostril divides the airflow:

• One part goes to the lungs for respiration.

• The other part enters directly into the olfactory recess, where the air is sifted by receptors without being immediately expelled. This allows them to analyze the air even while exhaling.

4. Jacobson's Organ (Vomeronasal)

Dogs possess an additional organ located above the palate that we do not have (or that is vestigial). This serves to detect pheromones, allowing the dog to perceive the emotional state, sex, and health of other living beings. It's as if they have an extra chemical sense.

A practical example to visualize the data

To understand what "100,000 times more sensitive" means, experts often use this analogy:

If we can smell a teaspoon of sugar in our coffee, a dog would be able to smell that teaspoon of sugar dissolved in an amount of water equivalent to two Olympic swimming pools.

Why does this matter for shampoo?

Precisely because of this extreme sensitivity, when you apply a shampoo with strong "floral" or "musky" synthetic fragrances to their fur, for them it's like living in a room with a loudspeaker blasting music at maximum volume 24 hours a day.

That's why the choice of natural botanical extracts and delicate oils (like pomegranate or grape) is crucial: they clean without attacking their primary sensory system.

Your dog much prefers to "read" the smells of nature than to be covered in a chemical scent that doesn't belong to them!

We formulated our botanical shampoo spray without synthetic fragrances precisely for this reason.

Come and discover our products!