GlutaTonic sublingual spray — glutathione, nicotinamide (NAD+ precursor), and inositol per serving — for longevity, IV therapy, and wellness practices. Three-ingredient antioxidant and cellular energy formula in a fast-absorbing daily spray.
GlutaTonic is a three-ingredient sublingual spray combining glutathione — the body’s master antioxidant — with nicotinamide (a direct NAD+ precursor) and inositol, which amplifies glutathione’s antioxidant activity and supports glucose uptake in muscle. Together these three compounds address cellular oxidative stress, mitochondrial energy production, detoxification, immune function, and brain health through complementary and synergistic mechanisms. The sublingual format delivers active ingredients through the tissue under the tongue, bypassing first-pass liver metabolism for faster and more efficient absorption.
For more on NAD+ and cellular aging, see the Anti-Aging White Paper.
| Ingredient | Amount per serving (12 sprays / 2mL) |
|---|---|
| Glutathione | 100 mg |
| Nicotinamide | 50 mg (313% DV) |
| Inositol | 100 mg |
| Servings per container | 30 |
| Other ingredients | Purified water, sorbitol, xylitol, stevia, natural flavors, lecithin, potassium sorbate, sodium benzoate |
| Suggested use | 12 sprays daily; spray under tongue for best results |
| Private label | Available |
Legere supplies licensed medical practices with a range of quantities to fit your volume needs. To get pricing, check availability, or place an order, click Request a Quote above or contact our team directly. Private label options are available on select products.
Glutathione is produced in every cell of the body and is the central molecule in antioxidant defense, detoxification, and regulation of cellular energy production. It protects cells from oxidative damage, clears toxins, and supports mitochondrial function. Aging, chronic illness, poor diet, alcohol, and many medications deplete glutathione — reducing the cell’s ability to manage oxidative stress and clear metabolic waste. Replenishing glutathione supports the immune system, mitochondrial efficiency, and the body’s overall toxic load management.
Nicotinamide (NAD+ Precursor) is converted by the body to NAD+ through the NAMPT salvage pathway — the primary route to NAD+ synthesis in humans. NAD+ activates sirtuins, which stimulate mitochondrial biogenesis and cellular repair. NAD+ levels decline significantly with age, contributing to reduced cellular energy and accelerated aging markers. Nicotinamide provides a direct, orally active route to replenishing NAD+ levels.
Inositol supports brain cell membrane health and neurotransmitter signaling. Importantly for this formula, inositol significantly enhances glutathione activity — facilitating glutathione’s antioxidant function at the cellular level. It also stimulates glucose uptake in muscle tissue, supporting energy availability and metabolic function.
Longevity and anti-aging practices: GlutaTonic delivers three of the most clinically discussed longevity-supporting compounds — glutathione, NAD+ precursors, and inositol — in a single daily spray. For practices building a longevity supplement protocol, GlutaTonic addresses cellular oxidative stress, mitochondrial energy, and detoxification simultaneously.
IV therapy and wellness clinics: Glutathione is one of the most popular IV therapy add-ons. GlutaTonic provides oral supplement support for patients who want glutathione benefit between IV sessions or as a more accessible daily maintenance option. Practices use it to extend the benefit of IV glutathione into the patient’s daily home routine.
Functional and integrative medicine practices: Practices addressing chronic fatigue, immune deficiency, poor detoxification, and oxidative stress-related conditions use glutathione and NAD+ as part of foundational cellular health protocols.
Weight loss and metabolic health practices: Inositol’s role in glucose uptake and GlutaTonic’s overall mitochondrial energy support make it relevant for patients managing metabolic dysfunction alongside weight management.
NAD+ Injection — IV NAD+ and oral nicotinamide address NAD+ replenishment through different delivery routes. Practices offering NAD+ IV therapy use GlutaTonic as the daily maintenance bridge between infusion sessions.
Diucaps — For weight loss practices using GlutaTonic for metabolic and mitochondrial support alongside Diucaps for appetite management. Product sheets identify these as a natural pairing.
Be-Thin Lipotropic Spray — Fat metabolism support alongside GlutaTonic’s mitochondrial energy and detox support. Complementary approaches for weight loss and metabolic health programs.
Stress & Adrenal Support Caps — Chronic stress depletes both glutathione and adrenal function. Addressing both with GlutaTonic and adaptogenic adrenal support covers the oxidative stress and hormonal stress response dimensions simultaneously.
Pregnancy and breastfeeding: Consult a healthcare provider before use.
Chemotherapy: High-dose antioxidant supplementation during some chemotherapy protocols may be contraindicated. Patients undergoing cancer treatment should discuss with their oncologist before using glutathione supplements.
Blood sugar medications: Inositol can affect insulin sensitivity and glucose uptake. Patients on antidiabetic medications should monitor blood sugar and notify their provider.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
How do I order, and what quantities are available?
Contact our team directly to place an order or request a quote. We supply a range of quantities depending on the product — reach out for current availability, lead times, and volume pricing. Private label options are available.
How does GlutaTonic compare to IV glutathione?
IV glutathione delivers a higher single dose directly into the bloodstream, producing a fast and pronounced effect. GlutaTonic provides a lower daily maintenance dose through sublingual absorption — better suited for ongoing daily support between IV sessions than for acute high-dose delivery. Practices offering IV glutathione use GlutaTonic to extend and maintain the benefit in the days between infusions.
What is nicotinamide doing in this formula?
Nicotinamide is a form of vitamin B3 that converts to NAD+ through the body’s primary NAD+ synthesis pathway. NAD+ activates cellular repair mechanisms and supports mitochondrial energy production — both of which decline with age. Including nicotinamide alongside glutathione means GlutaTonic addresses both antioxidant protection and cellular energy in a single product.
How does sublingual delivery improve absorption for these ingredients?
Oral glutathione has historically shown limited absorption due to breakdown in the GI tract. Sublingual delivery — absorbed through the tissue under the tongue — bypasses the digestive process and delivers ingredients directly into circulation, improving the effective amount that reaches the bloodstream relative to a traditional swallowed capsule.
Is private label available?
Yes. Contact our team to discuss private label options, minimum quantities, and label customization for your practice.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Schedule a no obligation/no-pressure call to quickly increase your weight loss clinic’s revenue.
