Contents: L-Glutathione 600 mg + NAD+ 500 mg (two separate vials) · Purity: ≥99% by reverse-phase HPLC · Identity: ESI-MS confirmed
The SUNDAY Kit pairs two of the most-studied molecules in antioxidant and cellular-energy research: L-Glutathione, the body’s main small-molecule antioxidant, and NAD+, the coenzyme at the center of cellular energy. Neither is a signaling peptide; both are metabolites the cell relies on. Each comes as a separate vial with its own documentation.
Structure & Identity
The kit contains two distinct compounds. L-Glutathione (GSH) is a tripeptide, gamma-L-glutamyl-L-cysteinyl-glycine, composed of glutamate, cysteine, and glycine (CAS 70-18-8). NAD+ (nicotinamide adenine dinucleotide) is a coenzyme, a dinucleotide, not a peptide (CAS 53-84-9). Each is supplied in its own vial.
Research Background
The two compounds anchor antioxidant and energy-metabolism research.
- Glutathione antioxidant. GSH is the principal intracellular antioxidant [PMID: 36707132].
- Oxidative-stress models. It is studied in oxidative-stress research such as lung inflammation [PMID: 11028671].
- NAD+ energy metabolism. NAD+ carries electrons in energy reactions and fuels sirtuins [PMID: 32694684].
- NAD+/sirtuin longevity. The NAD+/sirtuin pathway is studied for longevity and mitochondrial function [PMID: 23870130].
- Redox and energy overlap. Together they represent antioxidant defense and energy metabolism.
These are research contexts, not approved uses, and the kit is intended for laboratory study.
Specifications
| Attribute |
Value |
| Product type |
Kit (two separate vials) |
| Vial 1 |
L-Glutathione (tripeptide), 600 mg (CAS 70-18-8) |
| Vial 2 |
NAD+ (coenzyme, not a peptide), 500 mg (CAS 53-84-9) |
| Purity |
≥99% by reverse-phase HPLC (each) |
| Identity |
Confirmed by ESI mass spectrometry |
| Physical form |
Lyophilized powder |
| Storage |
-20°C, protected from light |
| Solubility |
Both water-soluble |
| Classification |
Research use only |
Storage & Handling
Keep both sealed vials frozen at -20°C and shielded from light until use. Both compounds are sensitive to air and moisture, glutathione’s cysteine can oxidize and NAD+ is moisture-sensitive, so let each vial reach room temperature before opening, reseal promptly, and keep reconstituted solutions cold and reasonably fresh. Avoid repeated freeze-thaw cycles.
Storage and Handling Guide
Quality Assurance
Both compounds in the kit are produced to research-grade standards and verified by an independent lab before release. Purity is measured by reverse-phase HPLC and identity by mass spectrometry, with testing carried out by third-party laboratories, including Janoshik Analytical and domestic US labs. Each vial has its own published batch-specific certificate of analysis.
Quality & Testing
Frequently Asked Questions
What is in the SUNDAY Kit?
Two separate vials: L-Glutathione 600 mg and NAD+ 500 mg. The kit is studied across antioxidant and cellular-energy research and is supplied for research use only.
Are these two ingredients peptides?
Glutathione is a tripeptide by structure but behaves like an antioxidant metabolite. NAD+ is a coenzyme, not a peptide. Neither is a signaling peptide.
Why are glutathione and NAD+ paired?
They represent two central themes in cellular research: antioxidant defense (glutathione) and energy metabolism (NAD+), so pairing them supports research spanning both.
What is glutathione made of?
Glutamate (glutamic acid), cysteine, and glycine, joined with an unusual gamma-linkage that resists normal peptide breakdown.
Is the SUNDAY Kit FDA approved?
No, neither compound is FDA approved. The kit is a research-use-only preparation, not for human or veterinary use.
Does each vial have its own COA?
Yes, each compound is tested separately and comes with its own batch-specific certificate of analysis.
How should the kit be stored?
Keep both powders frozen at -20°C and protected from light, reseal promptly after opening, and keep them away from heat and moisture.
How are the compounds verified?
Each is tested to ≥99% purity by reverse-phase HPLC with mass-spec identity confirmation by an independent lab.
References
- The antioxidant glutathione. 2023. PMID: 36707132.
- NAD+ homeostasis in health and disease. 2020. PMID: 32694684.
- The NAD+/Sirtuin Pathway Modulates Longevity through Activation of Mitochondrial function. 2013. PMID: 23870130.
