DSIP vs Selank
DSIP: Delta sleep-inducing peptide. Selank: Tuftsin analog anxiolytic. Per milligram, Selank is cheaper right now (USD 0.667 vs USD 0.560 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
DSIP
A nine-amino-acid peptide first isolated from rabbits that was reported to promote deep sleep; human results have been inconsistent.
- What it is
- Delta sleep-inducing peptide
- Category
- Sleep & mood
- Status
- Not approved. Research use only.
- Cheapest
- USD 0.667 per mg (Mai Peptide)
- Median price
- USD 4.05 per mg
- Vendors
- 73 independently tested, 22 with a lab report
- Research
- Grade B: Some human evidence (9 papers)
- Reported side effects
- Increased heart rate and reduced heart-rate variability (during anaesthesia); Transient mild arousal in the first hour after injection
Selank
A seven-amino-acid peptide derived from the immune peptide tuftsin; reduces anxiety in studies without sedation or dependence, given nasally.
- What it is
- Tuftsin analog anxiolytic
- Category
- Cognitive & nootropic
- Status
- Approved in Russia as an anti-anxiety drug; not approved in the US.
- Cheapest
- USD 0.560 per mg (Nantong Guangyuan Chemical GYC)
- Median price
- USD 3.22 per mg
- Vendors
- 81 independently tested, 24 with a lab report
- Research
- Grade B: Some human evidence (12 papers)
- Studied as
- studied in people
Cheapest tested vendors for DSIP and Selank
Lowest price per milligram at up to three independently tested vendors each. Rankings are by price only; open a vendor to see its lab results.
| Peptide | Vendor | Per mg |
|---|---|---|
| DSIP | Mai Peptide | USD 0.667 |
| BFF Chem | USD 0.750 | |
| Bfflink | USD 0.750 | |
| Selank | Nantong Guangyuan Chemical GYC | USD 0.560 |
| Mix Peptides | USD 0.580 | |
| Uther | USD 0.600 |
Questions people ask
What is the difference between DSIP and Selank?
DSIP: Delta sleep-inducing peptide. Selank: Tuftsin analog anxiolytic. Per milligram, Selank is cheaper right now (USD 0.667 vs USD 0.560 at the cheapest tested vendor). Prices per mg compare cost, not effect: the amounts used in studies differ between compounds.
Which is cheaper, DSIP or Selank?
Selank is cheaper per mg: USD 0.667 for DSIP vs USD 0.560 for Selank at the cheapest independently tested vendor. The median listing is USD 4.05 per mg for DSIP and USD 3.22 per mg for Selank.
Which is easier to find from a tested vendor, DSIP or Selank?
Selank is sold by more independently tested vendors: 73 list DSIP (22 publish a lab report for it) and 81 list Selank (24 with a lab report).
Which has more published research, DSIP or Selank?
DSIP is graded B (some human evidence) from 9 papers and Selank is graded B (some human evidence) from 12 papers. Grades count studies of the exact compound only; they describe how much evidence exists, not which one is better.
Are DSIP and Selank FDA approved?
DSIP: Not approved. Research use only. Selank: Approved in Russia as an anti-anxiety drug; not approved in the US.