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The Active Ingredients in Nuvi Calm & Harmony

Science-backed ingredients that work together to help your dog stay calm and balanced

L-Theanine (from Green Tea)

Calm focus without sedation

L-Theanine is a naturally occurring amino acid widely studied for its ability to promote relaxation while maintaining alertness. In dogs, it supports a calm mental state without causing drowsiness — making it ideal for daily use.

strong evidence

Why it matters:

  • Helps reduce stress and anxious behaviours
  • Supports focus and emotional balance
  • Non-sedating and well tolerated

Scientific backing:

Strong evidence from veterinary and human research supports L-Theanine's role in regulating stress responses via neurotransmitter activity.

L-Tryptophan

Supports serotonin — the "feel-good" pathway

L-Tryptophan is an essential amino acid and a natural precursor to serotonin, a neurotransmitter closely linked to mood stability and emotional regulation.

strong evidence

Why it matters:

  • Helps promote a calmer, more settled mood
  • Supports relaxation during periods of stress
  • Plays a role in healthy sleep-wake balance

Scientific backing:

Well-established research links L-Tryptophan to behavioural calm and stress moderation in dogs when used appropriately.

Lemon Balm (Melissa officinalis)

Gentle botanical calm, backed by tradition and science

Lemon Balm is a calming herb with a long history of use for nervous tension and restlessness. Modern studies support its role in soothing the nervous system and promoting relaxation without sedation.

strong evidence

Why it matters:

  • Helps ease nervousness and agitation
  • Supports emotional comfort in unfamiliar or stressful situations
  • Gentle, plant-based support

Scientific backing:

Supported by growing evidence in both veterinary and human research for its calming and anxiolytic properties.

Thiamine (Vitamin B1)

Foundational support for the nervous system

Thiamine is an essential B-vitamin crucial for normal nerve function and stress response. Deficiency has been associated with increased sensitivity to stress and noise in dogs.

strong evidence

Why it matters:

  • Supports healthy nervous-system signalling
  • Helps dogs cope better with environmental stressors
  • Extremely safe and well tolerated

Scientific backing:

Strong nutritional science supports Thiamine's role in neurological health and stress resilience.

How These Ingredients Work Together

Complementary Support

These four ingredients work through different pathways in the nervous system to provide comprehensive calming support without sedation.

Not a Replacement for Training

Calming supplements work best when combined with behaviour modification, routine, and environmental management. They are not a standalone solution.

Give Time to Work

Many supplements need consistent use before you see full effects. Be patient and track changes in your dog's behaviour.

Always Inform Your Vet

If your dog is on medication or has a medical condition, let your veterinarian know before introducing any new supplements.