Cognitive and sleep
DSIP
10mg
A$78
Collection
Cognitive and sleep research peptides
3 products, all in stock
Short answer
Cognitive and sleep research peptides are short neuropeptides studied in stress, cognition and sleep models. The group covers selank, semax and DSIP. Selank and semax are 7-amino-acid analogues of natural peptide fragments.
What are cognitive and sleep research peptides?
Cognitive and sleep research peptides are short neuropeptides studied in stress, cognition and sleep models. The group covers selank, semax and DSIP. Selank and semax are 7-amino-acid analogues of natural peptide fragments.
Selank and semax were developed in Russia, and most of their published research is Russian rodent and small clinical work. DSIP was first isolated in the 1970s.
Which compounds are in this group?
| PRODUCT | WHAT IT IS | STRENGTHS | FROM |
|---|---|---|---|
| DSIP | Nonapeptide originally isolated from rabbit blood during induced sleep | 10mg | A$78 |
| Selank | Synthetic heptapeptide analogue of tuftsin (Thr-Lys-Pro-Arg) extended with Pro-Gly-Pro | 10mg | A$58 |
| Semax | Synthetic heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro | 10mg | A$58 |
How do these compounds differ?
Selank and semax share a Pro-Gly-Pro extension on different parent fragments. DSIP is a separate nonapeptide.
| COMPOUND | CLASS | AUSTRALIA | WADA 2026 |
|---|---|---|---|
| DSIP | Nonapeptide originally isolated from rabbit blood during induced sleep | Not named | Not named |
| Selank | Synthetic heptapeptide analogue of tuftsin (Thr-Lys-Pro-Arg) extended with Pro-Gly-Pro | Not named | Not named |
| Semax | Synthetic heptapeptide analogue of the ACTH(4-7) fragment extended with Pro-Gly-Pro | Not named | Not named |
How is each batch tested?
Every batch is tested by an independent lab, [lab], before it goes on sale: purity by HPLC and identity by mass spectrometry. The certificate is published under the batch number printed on the vial.
Search any batch number in the certificate library. The testing page explains each method and its limits.
Are these peptides legal in Australia?
Legal status depends on the compound. 13 of the 28 research compounds in this range are listed in Schedule 4 of the Poisons Standard (prescription only), counting tesamorelin under the group entry for growth hormone-releasing hormones. 7 are also listed in Appendix D clause 5, which makes possession without authority an offence. The rest are not named in the Poisons Standard. Each product page states its compound's status, and Peptides Collective sells every product for laboratory research use only.
The legal guide explains each schedule, Appendix D and the WADA list.
How should they be stored?
Store sealed lyophilised vials frozen (about -20 degrees Celsius), dry and dark. Keep reconstituted solutions at 2 to 8 degrees Celsius and avoid repeated freezing and thawing.
BAC Water (sterile water with 0.9% benzyl alcohol) is the usual laboratory solvent. Dilute acetic acid is the alternative for peptides that dissolve poorly in water. Each product page names the solvent for its compound.
The storage guide and reconstitution guide cover laboratory handling.
Cognitive and sleep questions
What is a nootropic peptide?
Nootropic peptide is an informal label for peptides studied in cognition or stress research, such as selank and semax. It is not a regulatory category.
Are these compounds legal to buy in Australia?
Legal status depends on the compound. 13 of the 28 research compounds in this range are listed in Schedule 4 of the Poisons Standard (prescription only), counting tesamorelin under the group entry for growth hormone-releasing hormones. 7 are also listed in Appendix D clause 5, which makes possession without authority an offence. The rest are not named in the Poisons Standard. Each product page states its compound's status, and Peptides Collective sells every product for laboratory research use only.
Which compounds here are Schedule 4?
None of the compounds in this group is listed in Schedule 4. DSIP, Selank, Semax are not named.
Is every compound in stock?
Every product is in stock at the time of this update. Stock shows on each product page and in the cart.
Where do orders ship from?
Orders ship tracked from Western Australia. Orders placed before [cut-off] leave the same business day. Delivery estimates for each state are on the shipping page.
What do these compounds have in common?
Each is a short neuropeptide studied in stress, cognition or sleep models.
Which strengths are available?
DSIP: 10mg; Selank: 10mg; Semax: 10mg.
How are they shipped?
Orders ship tracked from Western Australia. Orders placed before [cut-off] leave the same business day. Delivery estimates for each state are on the shipping page.
Which compound in this group has the most research?
Semax and selank, mostly in Russian rodent studies and small clinical studies. DSIP has older animal and small human studies.
Do these compounds share a solvent?
BAC Water (sterile water with 0.9% benzyl alcohol) is the usual laboratory solvent. Dilute acetic acid is the alternative for peptides that dissolve poorly in water. Each product page names the solvent for its compound.
Are all batches tested?
Every batch is tested by an independent lab, [lab], before it goes on sale: purity by HPLC and identity by mass spectrometry. The certificate is published under the batch number printed on the vial.
How do I compare two compounds?
Each comparison guide sets two compounds side by side: structure, targets, research, legal status and price. See semaglutide vs tirzepatide, tirzepatide vs retatrutide, BPC-157 vs TB-500, selank vs semax and CJC-1295 vs ipamorelin.