Overview
What it is.
Glutathione is a tripeptide the body produces naturally and uses throughout its cells for antioxidant defense and detoxification-pathway function. It's one of the most established compounds in cellular-longevity research.
Research Areas
- Studied for its potential role in cellular-antioxidant-defense research
- Studied for its potential role in skin-tone and clarity research
- Studied for its potential role in detoxification-pathway research
Batch & Testing
Proof, not promises.
COA ships with every order
The Certificate of Analysis for your batch ships in the box with your order. We're publishing the certificate archive here next.
Research Deep-Dive
How it works.
Research Deep-Dive
How it works.
Glutathione is a small tripeptide the body produces naturally in every cell, where it serves as a central antioxidant and detoxification cofactor. It's one of the more established compounds in licensed wellness and longevity medicine, commonly compounded and administered in IV and injectable forms.
Glutathione neutralizes reactive oxygen species and supports the liver's phase-II detoxification pathways; it's also studied for its ability to inhibit tyrosinase, the enzyme that drives melanin production, which is the basis for its use in skin-tone-focused protocols.
Use Cases Explored
- Studied for a potential role in cellular antioxidant defense
- Studied for a potential role in skin tone and clarity
- Studied for a potential role in supporting the body's detoxification pathways
The Evidence
Pilot skin-lightening trial (IV route)
A small, open-label pilot study of 22 women receiving ten weekly doses of IV glutathione found measurable decreases in melanin index readings — but it lacked a placebo arm and used a small, homogeneous sample.
2025 systematic reviews — route-dependent efficacy and safety
A 2025 narrative review found oral glutathione shows variable but statistically significant melanin reduction with limited side effects, topical forms show modest benefit, while IV glutathione — despite acting quickly — carries the most serious documented safety concerns, including anaphylaxis and liver toxicity, with no standardized dosing protocol across studies.
2025 dermatology systematic review — cautionary conclusion
A 2025 review in the International Journal of Dermatology concluded that IV glutathione specifically is not well supported for skin-lightening efficacy relative to its safety risks, and that it may function better as an antioxidant adjunct in conditions like melasma than as a reliable whitening agent on its own.
Regulatory safety warnings
Both the FDA and dermatology regulators in the Philippines have issued specific warnings about the injectable route because of documented cases of anaphylaxis, Stevens-Johnson syndrome, and kidney/liver dysfunction tied to compounded injectable glutathione.
Specifications
The essentials.
Specifications
The essentials.
- Form
- Lyophilized powder
- Storage
- Store in a cool, dry place. Refrigerate at 2–8°C after reconstitution
- Shelf life
- 24 months lyophilized; 4–6 weeks refrigerated after reconstitution
- Solubility
- Reconstitute with bacteriostatic water
- Vial capacity
- 3 ml glass vial
Questions
Glutathione FAQ
Questions
Glutathione FAQ
What is Glutathione studied for?+
Glutathione is studied for cellular-antioxidant-defense and detoxification-pathway function, along with research interest in skin-tone and clarity — one of the most established compounds in cellular-longevity research.
Is Glutathione a peptide?+
Yes — it's a tripeptide the body produces naturally, made of three amino acids (glutamate, cysteine, and glycine), distinct from single-amino-acid antioxidant compounds.
How should Glutathione be handled and stored?+
It ships as a lyophilized powder. Reconstitute with bacteriostatic water and refrigerate at 2–8°C after mixing — good for roughly 4–6 weeks refrigerated, or up to 24 months unreconstituted in a cool, dry place.
What testing does this batch undergo?+
Every batch is HPLC tested for purity and identity, plus sterility and endotoxin screening, before release. The Certificate of Analysis for that lot ships with your order.
Cellular & Longevity
Glutathione
The "master antioxidant"
A naturally occurring antioxidant tripeptide studied in cellular-defense and detoxification research.
Size
Multi-vial pricing
Per-vial pricing, applied automatically. No code needed.
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All products sold by One Tap Peptides are intended for laboratory research use only. Not for human consumption. Not intended for animal use. Not intended for diagnostic or therapeutic purposes.
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