The science of touch, engineered into a wristband.
Zappizo is built on a simple, well-studied idea: touch can talk to the nervous system before the mind even catches up.
What published research shows
Gentle, rhythmic touch activates a specific class of nerve fibers in the skin, sending signals through the body's natural pathways to brain regions that regulate stress, calm, and how we sense our own internal state. Decades of research into affective touch, interoception, and heart-rate-variability biofeedback inform how Zappizo's vibration patterns are designed.
Affective touch and C-tactile afferents
A specific class of low-threshold mechanoreceptors in the skin, known as C-tactile afferents, responds preferentially to slow, gentle touch and produces nervous system changes that can enhance affect and reduce stress.
Read the studyCT-optimal touch and heart rate
Gentle stroking touch delivered at the optimal velocity for these skin receptors produced a measurable decrease in heart rate, an effect not seen with faster or slower touch.
Read the studyThe anterior insula and interoceptive awareness
The foundational paper establishing the insular cortex's central role in interoception — the brain's sense of the body's internal physiological state — and its involvement in regulating subjective feeling states.
Read the studyHRV biofeedback and brain connectivity
An eight-week heart-rate-variability biofeedback intervention was shown to influence functional brain connectivity involved in emotion regulation, with afferent vagal signaling reaching forebrain regions including the insula.
Read the studyHRV biofeedback, stress, and mood
A biofeedback intervention targeting vagal (parasympathetic) tone produced measurable reductions in self-reported stress and depressive symptoms alongside increased HRV.
Read the studyNoteThese are independent, third-party published studies on touch, interoception, and heart-rate-variability biofeedback generally. They inform Zappizo's approach to vibration pattern design but are not studies of the Zappizo wristband itself.
Calm, Focus, Sleep, and Recover are designed around research showing touch and vibration can help shift the body toward a parasympathetic, rest-and-recover state. Energy works differently — it's informed by separate research on vibrotactile nerve stimulation and its ability to gently sustain alertness, rather than calm the nervous system.
Vibrotactile vagus nerve stimulation and arousal
Vibrotactile stimulation of the auricular branch of the vagus nerve was shown to increase and help sustain general arousal, including during sustained attention tasks.
Read the studyWhy placement matters
Touch receptors capable of signaling calm to the nervous system aren't unique to any one part of the body — which means effective stimulation doesn't require a headset. Placing ZAPPIZO on the wrist means the same physiological pathway can be engaged comfortably, discreetly, and consistently — because a device you'll actually keep wearing works better than one you take off after a week.
Research-informed stimulation, personalized to you
Engineered Patterns
Each mode's vibration pattern is designed around research on touch, mechanoreceptor signaling, and nervous system regulation.
Your Control
You choose the mode and adjust the intensity and pattern that feels right for you, every session.
Personalized Over Time
ZAPPIZO's AI learns which settings you consistently prefer, so your experience becomes more tailored the more you use it.
Early, honest results
We're early. Once we have real user data, we'll present outcomes here as self-reported results with sample size and methodology disclosed — the same transparency approach used by other neurotech wellness brands. Until then, treat anything we say about outcomes as self-reported and early-stage, not clinical-trial-grade evidence.
What ZAPPIZO is — and isn't
ZAPPIZO does not read, sense, or measure brain activity. It does not diagnose or treat any medical condition. ZAPPIZO is a wellness device that lets you control stimulation directly and learns your preferences over time. If you have a diagnosed medical condition, consult a healthcare professional before use.
Zappizo's vibration patterns are informed by published research on touch and the nervous system, but Zappizo has not itself been clinically tested. Individual results may vary.
Secure your calm.
Join our exclusive waitlist today. Founding members get priority access, personalized onboarding, and a say in how ZAPPIZO's personalization engine evolves.