Description
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].
- Measurement and biosynthesis. GSH’s protective roles, biosynthesis, and measurement [PMID: 11028671].
- NAD+ energy metabolism. NAD+ carries electrons in energy reactions and fuels sirtuins [PMID: 32694684].
- NAD+/sirtuin longevity. NAD+ activates sirtuins, studied for their role in 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 prepared solutions cold and use in your research while fresh. Avoid repeated freeze-thaw cycles.
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 ships with its own batch-specific certificate of analysis.
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 come with 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.
