Most people think training starts when a puppy comes home and starts learning the basics. The truth is, a lot of a Shih Tzu’s future confidence and capability is shaped long before they can walk steadily or see the world around them. In those first two weeks of life, when their eyes are still closed and their days revolve around warmth and nursing, their brains are developing faster than at any other point.
That’s the stage where Early Scent Introduction (ESI) comes in. It’s small, simple, and quiet, but it makes a meaningful difference in how our puppies handle new experiences, stress, and scent-related tasks as they grow.
What Is Early Scent Introduction (ESI)?
ESI is a gentle enrichment practice we include from day 3 to day 16, right alongside ENS. During this window, each puppy is introduced to one new scent every day. We hold the scent under their nose for a moment and simply observe how they respond.
Some puppies lean in and search for the scent. Others pull away. Some don’t react much at all. None of these reactions are “good” or “bad.” We’re not grading them or trying to predict exactly who they’ll become. We’re giving their brains a chance to process something new during a time when new experiences shape how they’ll handle the world later on.
This short daily experience helps wire the parts of the brain responsible for scenting, stress recovery, and curiosity, all things that matter long after they leave our arms.
Why ESI Starts So Early
From days 3–16, a puppy’s neurological system is incredibly open to forming new pathways. The experiences they have in this window don’t overwhelm them; instead, they help build resilience. Even tiny exposures can influence:
- How easily they adapt to change
- How quickly they bounce back from stress
- Their comfort with handling
- Their future scenting potential
Shih Tzus, being a sensitive toy breed, benefit from anything that gently introduces novelty in a way that feels safe. ESI isn’t “training” in the traditional sense. It’s the groundwork that helps them approach life with more confidence.
What Research Shows About ESI
The idea behind ESI isn’t random. It comes from a long-term study led by Gayle Watkins, PhD, who tracked Golden Retrievers raised with ESI vs. those raised without it.
Dogs who received ESI:
- Earned more scent-related titles
- Succeeded in higher-level scenting activities
- Reached those achievements years earlier
While Shih Tzus aren’t working retrievers, the developmental principles are the same. Early scent work supports stronger neural connections, better recovery from new experiences, and improved adaptability, qualities that help any dog, regardless of their future role.
How ESI Supports Puppies in Real-World Families
Most Divine families aren’t preparing for scent detection competitions, but they do benefit from puppies who are more aware, more adaptable, and more confident.
Here are a few ways early scent engagement can help:
Supporting autistic children who wander or hide
A puppy with strong scent awareness can be easier to train for basic locate work within the home or yard.
Helping elderly owners who misplace important items
Scent-capable dogs can often be taught to find keys, medication bottles, or other essentials.
Noticing environmental changes in the home
Dogs with sharper scent discrimination may alert their families to unusual smells sooner.
Laying foundations for therapy or ESA roles
Good scent processing pairs closely with good emotional regulation, a key aspect of therapy and support work.
Are we turning 16-day-old puppies into service dogs? Absolutely not. But we are giving them an early foundation that supports clarity, calmness, and capability later in life.
What ESI Does NOT Do
To keep this grounded and realistic:
- It isn’t formal scent training
- It doesn’t determine working ability
- It doesn’t predict specific outcomes
ESI is simply one intentional way we support a puppy’s neurological development during a time when it matters most.
Why Divine Pups Chooses to Include ESI
We don’t raise puppies “the easy way.” We raise them the right way, with purpose. ESI fits naturally into our program because it supports the same goals we have for every Divine pup:
- A strong foundation for emotional stability
- Early experiences handled in a calm, safe environment
- Opportunities to build resilience
- Support for future learning and adaptability
We want our puppies to go into their new homes with the kind of confidence that lasts — whether they grow into therapy companions, emotional support animals, or simply the best family dog you’ve ever had.
Final Thoughts
ESI takes just a few minutes a day, but its effects can quietly shape a puppy’s ability to handle the world. You may not see the benefits immediately, but you will feel them later — in a puppy who adapts well, thinks clearly, and approaches new experiences with curiosity instead of fear.
For us, this is part of raising Shih Tzus with intention. Development doesn’t suddenly begin at eight weeks. It begins early, in the tiniest moments, long before families ever meet their puppy, and those tiny moments matter.
And this is the heart of what we do at Divine Pups: build strong foundations from the very beginning.
Ready to add a well-socialized Shih Tzu to your family? Check the website HERE for who’s available and who’s ALMOST available.
