← All peptides
warningBioGate · AMBERGrade B

Selank

TKPRPGP

Synthetic heptapeptide based on tuftsin; modulates GABAergic and serotonergic tone via BDNF upregulation.

intranasal formulation
MW
751.85
Length
7aa
Posterior
54.5%
Structural preview · ESMFold-2 mockdeterministic per sequence
Backbone preview · intranasal formulation
PDA-V1 attestation

Cryptographic chain of custody.

Outer PDA hash
Inputs hash
Merkle root
TEE attestation
Protocol version
PDA-V1
Source
peptide-md
Model version
structure-fm-2026.04
Candidates emitted
5
Signed
2026-04-21T08:14:33Z
Verifiable in your browser at /verifier with @peptide-md/verifier.
Verify this attestation →Download dossier (PDF)Compare with…
Real-world evidence

Cohort-attested outcomes.

Cohorts
1
Participants
165
Mean Δ
+1.09
Δ HRV ms (8-week) · 95% CI [0.53, 1.66]
IPNFT - Not minted

This peptide is not currently represented as an IPNFT. Cohort outcomes feed back into the unminted pool.

Used in protocols

Where this peptide shows up.

Cognitive Resilience under Sustained Load

Grade C

Generalized anxiety adjunct + sustained-attention performance research (RUO)

Citations

Source literature.

Grade C2003 · Bull Exp Biol Med

Selank and short peptides of the tuftsin family in correction of stress

Kozlovskaya MM et al.

PMID 15523530