Nxir Labs

L‑Glutathione 1500 mg

$79.99

Boost skin radiance, support detoxification, and enhance overall wellness with L‑Glutathione 1500 mg, a peptide-grade antioxidant designed for anti-aging and cellular repair. Perfect for integrating into your peptide supplement routine.*

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Product & Research Information

Yes. All Nxir Lab products are lab-tested for purity and consistency, with Certificates of Analysis (COAs) available for transparency.

No. All products are strictly intended for laboratory and research use only and are not for human or veterinary consumption.

All peptides are securely packaged to maintain quality and shipped discreetly with reliable tracking for safe delivery.

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Made in USA

Third-Party Tested

L‑Glutathione 1500 mg is a premium peptide-grade antioxidant that plays a crucial role in protecting cells from oxidative stress, supporting detoxification pathways, and promoting youthful, radiant skin.

Glutathione is a naturally occurring tripeptide composed of glutamic acid, cysteine, and glycine, vital for neutralizing free radicals, enhancing immune function, and promoting cellular repair. This high-strength 1500 mg formula is ideal for those seeking advanced anti-aging support and skin wellness.

Benefits:
✔ Promotes skin brightness and even complexion
✔ Supports cellular repair and detoxification
✔ Powerful antioxidant for overall health
✔ High-strength, peptide-grade 1500 mg formula
✔ Complements peptide and anti-aging supplement routines

Suggested Use: Take 1–2 capsules daily with meals or as recommended by your healthcare professional. For optimal results, use consistently alongside your peptide regimen and maintain a healthy lifestyle.

Why Choose Our L‑Glutathione 1500 mg:
Unlike generic glutathione, our peptide-grade formulation ensures higher purity, better efficacy, and compatibility with anti-aging and peptide supplements. Experience visible skin glow, improved wellness, and powerful antioxidant support in one premium supplement.

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Why Researchers Trust NxirLab

We focus on precision, purity, and transparency ensuring every peptide meets strict laboratory research standards.

Verified Purity

Each peptide undergoes HPLC analysis and batch-level quality verification.

COA Available

Certificates of Analysis are available upon request for research validation.

Analytical-Grade Compounds

Supplied for controlled laboratory and in-vitro research environments.

Verified Purity

Each peptide undergoes HPLC analysis and batch-level quality verification.

COA Available

Certificates of Analysis are available upon request for research validation.

Analytical-Grade Compounds

Supplied for controlled laboratory and in-vitro research environments.

Fast & Reliable Fulfillment

U.S. fulfillment, secure packaging, and tracked shipping.

Research-Focused Support

Assistance from a knowledgeable, research-aware support team.

Research Use Only

Not for human consumption, medical, or veterinary use.

Fast & Reliable Fulfillment

U.S. fulfillment, secure packaging, and tracked shipping.

Research-Focused Support

Assistance from a knowledgeable, research-aware support team.

Research Use Only

Not for human consumption, medical, or veterinary use.

For Research Use Only

All products sold by Nxir Lab are intended strictly for laboratory and research applications. We operate in compliance with applicable regulations to ensure responsible distribution and professional standards.

FAQ

Have More Questions?

We’ve answered some of the most common questions below to help you shop with confidence.

Peptides are short chains of amino acids that play various roles in biological functions. They are commonly used in scientific research to study cellular processes.

No. All products are strictly for research purposes only and are not intended for human use.

No. We do not provide any medical advice or dosage guidelines. Our products are for research use only.

Orders can be placed directly through our website by adding products to your cart and proceeding to checkout.

Please contact our customer service team within 7 days of receipt for assistance.

We’ve answered some of the most common questions below to help you shop with confidence.

Purity Verified in U.S. Labs

Every peptide is HPLC-tested for ≥99% purity. No fluff—just facts you can verify.

Real Support from Real People

Need help? Our U.S.-based team offers expert, research-focused support—no bots, no scripts, just humans who actually know peptides.

Fast Shipping + Flexible Returns

Free U.S. shipping on orders over $175. Changed your mind? Return unopened or even opened vials within 30 days.