Answers to common questions about the research literature covered on this site, and about the site itself. For a full write-up on any compound, see its dedicated page linked in the navigation above.
What are research peptides?
“Research peptides” is a general term for short chains of amino acids — the same building blocks as proteins, just shorter — that are manufactured for use in laboratory and preclinical research rather than for human consumption. The compounds covered on this site (NAD+, glutathione, DSIP, and GLP-1) each have a distinct research history, mechanism, and evidence base, which is why we cover them individually rather than as a single category.
What do NAD+ research findings show?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme with two well-established core roles: as an electron carrier in the metabolic pathways cells use to generate ATP, and as a required substrate for sirtuin enzymes, which has driven substantial research interest in cellular aging and metabolism. Our NAD+ page summarizes the biochemistry and the current research literature in more depth.
What do glutathione research studies cover?
Unlike most compounds on this site, glutathione is produced endogenously in essentially all human tissue, with particularly high concentrations in the liver. Research on it centers on its role as the body’s primary intracellular antioxidant — neutralizing reactive oxygen species and serving as a cofactor for detoxification enzymes. Our glutathione page covers this in detail.
What is DSIP research about?
DSIP (delta sleep-inducing peptide) was first identified in blood drawn from rabbits during electrically induced delta-wave sleep, and is named for that original association. The available research is older and smaller in volume than for many other peptides, and has looked at possible neuromodulatory activity and HPA-axis interactions, without a firmly established receptor. Details and citations are on our DSIP page.
What is GLP-1 and why is it studied?
GLP-1 is a peptide hormone released from cells in the small intestine and colon after nutrient intake. It’s one of the most-studied hormone systems in modern metabolic research, largely because of its glucose-dependent effect on insulin secretion — it prompts insulin release specifically when blood glucose is elevated, which carries a research interest in a lower inherent hypoglycemia risk relative to other insulin-secretion pathways. More detail is on our GLP-1 page.
Is anything on this site medical advice?
No. This site summarizes published preclinical and academic research for informational and educational purposes only. It does not constitute medical advice, and nothing here should be used to diagnose, treat, or make health decisions. If you have a medical question, please consult a licensed healthcare provider.
Are these compounds approved by the FDA for human use?
No. None of the compounds discussed on this site are approved by the FDA for human use. The research summarized here is preclinical or early-stage academic research, and should not be read as evidence of human safety or effectiveness.
Does this site sell peptides or any other products?
No. Lab Research Peptide is a non-commercial, independent information resource. We don’t sell anything, and we don’t link to anyone who does.
How is the information on this site sourced?
Each compound page is written from the preclinical and academic literature — mechanism studies, animal research, and where available, early human research — with findings attributed to the study or review that reported them. See our About page for a full description of our approach.