How should Glutathione be stored?

In lyophilized powder form, Glutathione is stable at room temperature short-term but should be refrigerated (2–8°C) for longer storage and kept away from light and moisture. Once reconstituted, keep refrigerated and use within 30 days. Avoid freeze-thaw cycles.

Is Glutathione approved by the FDA?

No. Glutathione is not FDA-approved for human use. NextSelf Labs sells Glutathione strictly as a research chemical for laboratory research.

What is the purity of your Glutathione?

All NextSelf Labs Glutathione is manufactured to ≥99% purity and verified by third-party laboratories using HPLC and mass spectrometry. The Certificate of Analysis for every batch is available on this page — match the batch number on your vial to the COA header to verify.

Is Glutathione the same as L-Glutathione?

Yes. 'L-Glutathione' refers to the biologically active form of the molecule, which is what NextSelf Labs supplies. The 'L' designates the natural left-handed isomer found in human tissue.

Why is glutathione called a 'master' antioxidant?

Glutathione directly neutralizes free radicals and also regenerates other antioxidants — vitamin C, vitamin E, alpha-lipoic acid — back to their active forms after they’ve been used. It sits upstream of much of the body’s antioxidant network.

Do I need a prescription to purchase Glutathione?

No. NextSelf Labs sells Glutathione as a research chemical for laboratory use only.

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Glutathione

Research Tripeptide

Glutathione

Skin Clarity & Detox Support

The body’s master antioxidant, isolated for research applications. Glutathione is one of the most-studied molecules in oxidative stress, detoxification, and skin appearance research.

4.9 (176 Reviews)

For research use only. Not for human consumption.

About the Peptide

The molecule the body relies on.

Glutathione is a tripeptide built from three amino acids — glutamine, cysteine, and glycine — produced naturally in every cell in the body. It is the most abundant antioxidant in human tissue, and arguably the most-studied molecule in the oxidative stress and detoxification literature.

Glutathione levels decline with age, with stress, and with the cumulative burden modern life places on the body’s detoxification systems. For women, this decline often parallels the symptoms most associated with oxidative load — changes in skin tone, fatigue, and the diminished resilience that comes with depleted antioxidant reserves.

Published research has documented glutathione’s central role in neutralizing free radicals, supporting hepatic detoxification pathways, regenerating other antioxidants like vitamin C and vitamin E, and modulating inflammatory cascades. It sits at the foundation of cellular protection.

Research Applications

Where oxidative stress meets women’s biology.

Glutathione touches almost every system researchers study in women’s health — skin, liver, hormones, immune function, and the broad question of how the body manages the cumulative load of modern life.

Skin & Pigmentation

Glutathione has been studied extensively for its role in melanin pathway modulation, with research documenting effects on skin tone uniformity and overall complexion appearance.

Detoxification Support

As the cofactor for the body’s primary phase II detoxification enzymes, glutathione has a documented role in how the liver processes endogenous and environmental compounds.

Oxidative Resilience

Research has linked glutathione status to cellular aging markers, mitochondrial function, and the body’s capacity to recover from oxidative challenges — areas of growing interest in women’s longevity research.

Certificate of Analysis

Independently Tested. Verified by Batch.

Current Batch • %

Coming Soon

Purity

Tested Purity by HPLC

mg

Content

Labeled amount per vial

mg

Net Content

Actual amount per vial

Identification

Mass spectrometry confirmed

View COA

Frequently Asked

Questions.

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Research Use Only

All products sold by Next Self Labs are intended strictly for laboratory and research use. They are not for human consumption, therapeutic use, cosmetic application, or in-vivo diagnostic use. Products have not been evaluated or approved by the U.S. Food and Drug Administration. By purchasing, you confirm that you are a qualified researcher over the age of 21 and agree to use products solely in accordance with applicable laws.

Glutathione

The molecule the body relies on.

Where oxidative stress meets women’s biology.

Skin & Pigmentation

Detoxification Support

Oxidative Resilience

Independently Tested. Verified by Batch.

Questions.

Recommended Products

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