SELANK
A lab-made 7-block peptide based on tuftsin, a small peptide from the immune system. Studied for anxiety.
Most of the evidence◐ Reported
01
What it's made of
07Blocks
TKPRPGP
T K P R P G P. The first 4 blocks are tuftsin. The last 3 (P G P) were added to make it last longer, the same trick as Semax.
Load it in the Peptide builder →02
Where it comes from
Developed in Russia. Tuftsin is a 4-block peptide your immune system makes.
03
What it's studied for
- ◐ Reported
Anxiety: small Russian trials reported calming effects similar to an anti-anxiety drug, without drowsiness. Not repeated by other countries.
Studied for ≠ proven to work. Check the stamp.
04
What we don't know
- ?
The trials are small, mostly in Russian, and have not been repeated elsewhere.
- ?
Long-term effects are unknown.
05
Status
- Approved as a medicine for anxiety in Russia (2009).
- Not approved in the US or Vietnam.
07
Words to know
Tuftsin = A tiny 4-block peptide made by the immune system.Anxiolytic = A drug that reduces anxiety.
08
Sources
Checked: 9 Oct 2026