NAD+
supplementA coenzyme every cell uses for energy; offered as IV drips and injections at longevity clinics.
Selank is a peptide that is research only, not approved for human use in the US.
Also known as TP-7, Selank acetate
Selank is a synthetic peptide based on tuftsin, a fragment of an immune protein. It is registered in Russia as an anti-anxiety medicine and sold online in the US as a nootropic.

Not approved for human use in the US. We list it so you can learn what it is, but we do not link to anyone selling it. Not FDA-approved. Its compounding nomination was withdrawn and it is no longer listed in Category 2, but it is not on the 503A bulks list or under evaluation, so there is no lawful compounding route.
As of September 23, 2026.
Key takeaways
Preclinical only: selank is a modified version of tuftsin, a fragment of an immune protein. In rats, it changed the activity of genes involved in GABA signaling, the calming system that benzodiazepines also act on.
Researchers have proposed that it works somewhat like those drugs, but this has not been confirmed in rigorous human trials.


Evidence is mostly animal studies and small Russian clinical reports; no rigorous independent human trials.
Selank has little independent human evidence and no US regulatory path, and regulators flagged immune concerns.
FDA said selank may pose a risk of immune reactions from aggregation and impurities, and that it lacks important information on its safety in humans.
FDA: Bulk drug substances that may present significant safety risks (Category 2)A 2026 review of therapeutic peptides describes the clinical evidence as mostly small Russian studies and notes a lack of clinical trials.
Therapeutic peptides in orthopaedics: applications, challenges and future directions (JAAOS Glob Res Rev 2026)Selank is on FDA's list of withdrawn nominations and was not on the 2026 advisory committee agenda, so it is not under evaluation for compounding.
FDA: 503A bulk drug substance categories list (May 14, 2026)Summaries of published guidelines, drug labels, regulators and reviews, each attributed to its source. DiscoverMedica does not employ clinicians.
These save with the compound when you add it to My Journal, so they’re on the printout for your visit.
Selank is not approved for human use, so DiscoverMedica links to no seller.
We don’t link to sellers of research-only compounds. Products sold “for research use only” are not made for people and are not held to pharmaceutical quality standards.
Small Russian studies suggest it might, but there are no rigorous independent trials. Proven treatments for anxiety include therapy and approved medications.
Not soon. Its nomination was withdrawn and it is not under FDA evaluation.
No. Selank is not FDA-approved and has no lawful compounding route, so there is nothing a licensed telehealth provider can legitimately prescribe. If a site offers it, treat that as a warning sign. DiscoverMedica does not link to anyone selling it.
It means the product is not made or tested for people. FDA has sent warning letters to sellers who use that label while making health claims, and says it judges a product by how it is marketed, not by the disclaimer.
Selank is not approved for human use in the US. Not approved for human use in the US. We list it so you can learn what it is, but we do not link to anyone selling it.
This is not a complete list of risks. Talk to a licensed clinician or pharmacist about your own situation. If you have a severe reaction, call 911. You can report side effects to the FDA through MedWatch at 1-800-FDA-1088.
Guide reviewed September 23, 2026.
Educational information only, not medical advice. It does not replace a conversation with a licensed clinician.
A coenzyme every cell uses for energy; offered as IV drips and injections at longevity clinics.
The body's own sleep-timing hormone, sold as a supplement for jet lag and trouble falling asleep.
A gentle form of magnesium that people take for sleep and relaxation.
A simple amino acid some people take before bed. Evidence comes from a few small studies.