One thinks. One feels.
Your first brain lives in your head. Your second lives in your gut.
Science calls this the gut–brain axis.
The second brain (your gut) is home to trillions of microbes shaping your mood, energy, clarity, digestion, and immunity. But it’s not the microbes themselves that matter most. It’s what they make. The science-backed compounds called Postbiotics - your gut and brain use to stay in sync, supporting clarity, mood, and whole-body balance.
What is the gut–brain axis?
Your gut and brain are in constant conversation, linked by what science calls the gut–brain axis. This two-way superhighway, led by the vagus nerve, sends signals in milliseconds and help regulate mood, energy, digestion, and emotional balance in real time.
When your gut is in balance, you feel it: Steady mood, clear focus, lasting energy. When it’s not, the signals get scrambled. You feel fatigued, stressed, foggy, and just off.
Your gut produces:
91%
of your
serotonin
50%
of your
dopamine
74%
of your immune
system
Most wellness products focus on adding bacteria, also known as probiotics. But your body doesn’t use the bacteria themselves. It uses the healthy metabolites they produce. These are bioactive compounds your body can actually use. That’s what Postbiotics are. They skip the middleman by delivering the benefits directly, even when prebiotics and probiotics might not survive digestion. The end result of healthy gut activity.
Prebiotics feed bacteria, probiotics are bacteria, but Postbiotics are what your body actually needs and uses right away.
*Some prebiotics (via short-chain fatty acids) and certain probiotic strains may also support gut lining, but postbiotics provide the most direct and consistent benefit.
| Category | 
(the harvest) |
Probiotics (the seeds) |
Prebiotics (the fertilizer) |
|---|---|---|---|
| Body-Ready & Usability | |||
| Digestive Comfort | |||
| Immunity | |||
| Mind & Mood | |||
| Fast-Acting | |||
| Shelf-Stable | |||
| Whole-Body Wellness | |||
| Gut-Lining Support | * | * | |
| Potency | (Trillions) | (Billions) |
*Some prebiotics (via short-chain fatty acids) and certain probiotic strains may also support gut lining, but postbiotics provide the most direct and consistent benefit.
Patented, clinically studied blend delivering trillions of bioactives. It took years of research to develop the right combination and clinical dosing of Postbiotics that actually work. Designed to work fast to support your second brain for clarity, calm, and resilience.
Our Clinically Studied Postbiotics
BiomeBalance uses patented, research-backed postbiotics like Totipro®, EpiCor®, and Bereum® - fermentation-derived compounds your body can use right away.
✓ Each one is shelf-stable, clinically validated, and precisely formulated.
→ No refrigeration required
→ Calms digestive distress, supports immune defenses, and promotes a balanced microbiome.
→ Clinically shown to relieve bloating and gut discomfort, ideal for daily gut balance or travel relief.
→ A whole-food fermentate packed with metabolites that strengthen gut lining, boost resilience, and help you stay well year-round.
→ Reduces GI discomfort and supports immune defenses, shown to cut cold symptoms by up to 21%.
→ Clinically shown to reduce bloating, improve gut comfort, and deliver fast, noticeable digestive relief.
→ Help regulate mood and gut-brain signaling, supports emotional balance through the gut.
How Postbiotics perform. Digestion in days, mood in weeks, resilience that lasts.
Every claim backed by published studies.
You’ve got two brains. This is how you support both. SecondKind is the breakthrough that finally brings balance to your gut.
