This page compares what is documented about DSIP and Epithalon, rather than ranking them by effect. What each molecule is, the sizes and prices actually carried, what the certificate covers, and how the two differ on the bench. Everything here is research-use-only material and we do not publish outcome, dosing or administration content for any compound in the catalogue.
What is DSIP and what is Epithalon?
DSIP. Delta sleep-inducing peptide was isolated in 1977 and still appears in neurochemistry work on sleep architecture and stress-axis models — a genuine classic of the field.
Epithalon. Epithalon (AEDG) is the synthetic version of Khavinson's pineal tetrapeptide, studied in telomerase-activity and cellular-senescence models since the 1990s.
How do DSIP and Epithalon compare on price and size?
| DSIP | Epithalon | |
|---|---|---|
| Sizes carried | 5 mg, 10 mg | 10 mg, 50 mg |
| From | $49.00 | $40.00 |
| Best price per unit | $5.40 / mg | $2.18 / mg |
| Availability | Backordered — waitlist | Backordered — waitlist |
| Certificate | Lot certificate on the product page | Lot certificate on the product page |
| Molecular formula | C35H48N10O15 | C14H22N4O9 |
| Molar mass | 848.8 g/mol | 390.35 g/mol |
| Source | PubChem CID 68816 | PubChem CID 219042 |
| Research area | sleep-neurochemistry research | telomere-biology research |
At their best sizes Epithalon works out at $2.18 per mg against $5.40 for DSIP — 2.5 times more for the mg. Vial prices start at $49.00 and $40.00 respectively, which is the number most people compare and the one that says least, because the two are not sold in the same sizes. Full sizes, tier pricing and the lot certificate sit on the DSIP page and the Epithalon page.
What is each one studied for?
What the published literature investigates, which is a different question from what either will do, and the only one of the two a supplier can answer.
DSIP is studied in sleep-neurochemistry research. Sleep-neurochemistry research maintains a steady interest in DSIP nearly five decades after its isolation.
Epithalon is studied in telomere-biology research. Telomere-biology research keeps the Khavinson peptides in circulation, with epithalon much the most-cited.
Studied in the same area does not make two compounds interchangeable, and the research library holds the per-compound documentation.
Epithalon vs DSIP: how they differ on the bench
Epithalon. AEDG's aspartate is prone to isomerisation in storage — the exact failure mode our epithalon stability guide walks through.
DSIP. DSIP's long history means well-characterised degradation products — which makes purity chromatograms unusually informative on this compound.
What actually differs between Epithalon and DSIP
Worth doing the arithmetic before comparing sizes: DSIP is 848.8 g/mol and Epithalon is 390.35 g/mol, a factor of 2.2. A milligram of Epithalon therefore contains roughly 2.2 times as many molecules as a milligram of DSIP, so two vials of the same labelled mass hold quite different amounts of substance. Equal milligrams are not equal moles, which is what the molarity calculator exists to convert, and it is the reason a price-per-milligram comparison and a price-per-mole comparison can point at different vials.
Identity is the other analytical axis, and it is settled per lot rather than per compound. DSIP. Catalogued as Delta sleep-inducing peptide, and the certificate's identity test resolves to that. Epithalon. Catalogued as Epitalon, and the certificate's identity test resolves to that.
Both are released against a certificate reporting identity, purity by the stated method and net peptide content, readable before anything is bought.
Which is better, Epithalon or DSIP?
Neither Epithalon nor DSIP is ranked against the other here, and the refusal is deliberate. Better, safer and stronger are questions about effects in a living system, and we sell neither compound for use in one — why none of these pages ranks two compounds sets out the reasoning in full.
What it does instead, for these two:
- Epithalon is the cheaper of the two per mg, at $2.18 against $5.40.
- DSIP is the heavier molecule by a factor of 2.2, so equal milligrams are not equal moles.
- Both are carried in 2 sizes, and each lot carries its own certificate.
Every one of those is checkable before you buy.
Common questions
What is the difference between Epithalon and DSIP?
Different molecules before anything else: Epithalon is C14H22N4O9 and DSIP is C35H48N10O15. Epithalon (AEDG) is the synthetic version of Khavinson's pineal tetrapeptide, studied in telomerase-activity and cellular-senescence models since the 1990s. Delta sleep-inducing peptide was isolated in 1977 and still appears in neurochemistry work on sleep architecture and stress-axis models — a genuine classic of the field.
Which one should I choose?
DSIP is carried in 5 mg, 10 mg and Epithalon in 10 mg, 50 mg, each lot with its own certificate. Which of those suits the work is yours to decide; everything here is research-use-only rather than guidance for use in a human or an animal.
Do both DSIP and Epithalon come with a certificate of analysis?
Neither is in stock at the moment, so in each case the certificate is the one attached to the lot that arrives. A certificate belongs to a lot, not to a product. It is linked from the product page, and reports identity, purity by the stated method, and net peptide content for the material actually in that lot.
Which is cheaper, Epithalon or DSIP?
Per mg, Epithalon at $2.18 against $5.40, taking each one's best size. By vial they start at $49.00 for DSIP and $40.00 for Epithalon, which is the comparison most people make and the one that says least, because the two are not sold in the same sizes.
Is a milligram of DSIP the same as a milligram of Epithalon?
By mass yes, by amount of substance no. DSIP is 848.8 g/mol and Epithalon is 390.35 g/mol, a factor of 2.2, so a milligram of Epithalon holds roughly 2.2 times as many molecules. Two vials with the same number on the label are not the same amount of substance, which is what the molarity calculator converts.
FOR LABORATORY AND IN-VITRO RESEARCH USE ONLY. NOT FOR HUMAN OR ANIMAL CONSUMPTION. NOT FOR PERSONAL, MEDICAL, DIAGNOSTIC, THERAPEUTIC, OR RECREATIONAL USE.