NeuroScience

Kavinace® OS, 60 Capsules

Kavinace® OS by NeuroScience is a targeted formula combining taurine, 4-amino-3-phenylbutyric acid (phenibut), and 5-HTP to support healthy GABA activity, serotonin balance, and restful sleep patterns.

May be a fit for

  • Adults seeking phenibut-based support for occasional sleep onset difficulties
  • Individuals using melatonin and phenibut together for nighttime relaxation support
  • Those supporting healthy GABA activity to may help maintain calm before sleep
$51.99

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CapsulesFormat
60 CapsulesPack size
The essentials

A closer look.

Kavinace® OS by NeuroScience is a targeted formula combining taurine, 4-amino-3-phenylbutyric acid (phenibut), and 5-HTP to support healthy GABA activity, serotonin balance, and restful sleep patterns. Designed with a practitioner-oriented perspective, it addresses both GABAergic and serotonergic pathways in a single formulation.

Why It's Worth Considering: The dual-pathway approach, pairing a GABA-B agonist precursor with a direct serotonin precursor, distinguishes Kavinace® OS from single-compound sleep or mood support products, offering a more comprehensive neurochemical support profile.

Inside the formula

Product details

Who it may suit

May be a fit for

  • Adults seeking phenibut-based support for occasional sleep onset difficulties
  • Individuals using melatonin and phenibut together for nighttime relaxation support
  • Those supporting healthy GABA activity to may help maintain calm before sleep
  • Practitioners protocols requiring a combined phenibut and melatonin sleep formula

Considerations

  • Active bleeding or bleeding disorders
  • Taking nitroglycerin (may cause hypotension)
  • Asthma (rare cases of bronchospasm at high doses)
  • Scheduled surgery within 1 week
What to expect over time
Day 1–7

Glutathione Boost

Increased intracellular glutathione production

Week 2–4

Liver Support

Enhanced phase II detoxification

Week 4–8

Respiratory & Mental

Clearer breathing, reduced compulsive symptoms

Month 2–3

Systemic Antioxidant

Reduced oxidative stress markers

Based on clinical NAC research at 600-1800mg/day.

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Good to know

A few useful answers.

Research & further reading

More category questions

What is NAC used for?

NAC is the precursor to glutathione — the body's master antioxidant. It's used for liver detoxification, respiratory health (thins mucus), mental health (OCD, addiction, depression), immune support, and protecting against oxidative damage from toxins, alcohol, and environmental chemicals. It's also the standard ER treatment for acetaminophen overdose.

How much NAC should I take?

For general antioxidant support: 600mg 1-2x daily. For liver support: 1200-1800mg/day. For respiratory health: 600mg 2-3x daily. For mental health (OCD, addiction): 1200-2400mg/day (clinical study doses). Take on an empty stomach for best absorption.

Is NAC the same as glutathione?

No — NAC is a precursor that your body converts INTO glutathione. NAC has better oral bioavailability than direct glutathione supplements (which are largely destroyed in the stomach). NAC is generally more cost-effective for raising intracellular glutathione levels than oral glutathione, though liposomal glutathione is a viable alternative.

Can I take NAC every day?

Yes. NAC is well-tolerated for long-term daily use at standard doses (600-1800mg). It's water-soluble and excess is excreted. Common side effects are mild GI upset, which resolves by taking with food. There's no evidence of tolerance or need for cycling.

Does NAC help with hangovers?

NAC supports alcohol metabolism by boosting glutathione, which is depleted during alcohol detoxification. However, timing matters: take NAC BEFORE drinking (at least 30 minutes prior), not after. Taking NAC after alcohol may actually increase liver toxicity by interfering with the detoxification sequence.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

NeuroScience - Kavinace® OS, 60 Capsules