DSIP 10mg
An endogenous nonapeptide (delta sleep-inducing peptide) first isolated from cerebral venous blood.
Observed price
Median $/mg
$7.40/mg
Range $/mg
$3.95/mg–$13.5/mg
This listing
#5 of 14
mid-market
Real / active mg
$6.10/mg
Compared by cost-per-mg against 14 vendor listings of this compound whose size we can read. Real / active mg divides cost-per-mg by measured purity. Read from the certificate, not re-measured by VialGrade.
- Availability
- In stock
- Checked
- 1 hour ago
Hands you to felixchem.is — VialGrade doesn’t sell or take payment
Felix Chemical Supply
Unclaimed page
3
Lab tests
99.7%
Median purity
23
Listings
Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — outbound links stay off until the affiliate step is approved.
No independent test of Felix Chemical Supply's DSIP yet
- DSIP generally tests around 98.3% purity across 4 independent certificates — but from other makers, so treat it as a benchmark, not proof of this seller's stock.
- Price sits within the normal range for DSIP — no cheap-fake red flag.
How to verify this yourself
To verify before you buy: ask Felix Chemical Supply for the Janoshik COA for your batch number, then paste it into Verify — VialGrade confirms it's a real, unedited lab record.
Open the Verify toolCompare by real cost
Cheapest DSIP, by price per mg
Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.
| # | Vendor | Size | Price | Per mg | Tested purity | Real $/active mg | |
|---|---|---|---|---|---|---|---|
| 1 | Peptide Pros | 500mg total5mg/vial × 100 vials each | $1,975 | $3.95/mg | — | $4.02/mgbest value | View |
| 2 | Chameleon Peptides | 15mg total | $60 | $4.02/mg | 98.1% | $4.10/mg | View |
| 3 | Peptide Pros | 250mg total5mg/vial × 50 vials each | $1,383 | $5.53/mg | — | $5.63/mg | View |
| 4 | Ez Peptides | 10mg total | $58 | $5.80/mg | 98.4% | $5.89/mg | View |
| 5 | Felix Chemical Supply | 10mg total | $60 | $6.00/mg | — | $6.10/mg | View |
| 6 | Modern Aminos | 5mg total | $35 | $7.00/mg | — | $7.12/mg | View |
| 7 | Simple Peptide | 5mg total | $35 | $7.00/mg | — | $7.12/mg | View |
| 8 | Bluum Peptides | 5mg total | $39 | $7.80/mg | — | $7.94/mg | View |
| 9 | Peptide Pros | 5mg total | $40 | $7.90/mg | — | $8.04/mg | View |
| 10 | Sports Technology Labs | 5mg total | $47 | $9.40/mg | 90.2% | $10.4/mg | View |
| 11 | Umbrella Labs | 5mg total5 Milligrams each | $51 | $10.2/mg | — | $10.4/mg | View |
| 12 | Felix Chemical Supply | 5mg total | $55 | $11.0/mg | — | $11.2/mg | View |
| 13 | Swiss Chems | 2mg total | $25 | $12.5/mg | — | $12.7/mg | View |
| 14 | Umbrella Labs | 2mg total | $27 | $13.5/mg | — | $13.7/mg | View |
Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg.
Understand this compound
What is DSIP?
Limited human dataa.k.a. Delta Sleep-Inducing PeptideThe 'delta sleep-inducing peptide', studied in sleep and stress research.
Good to know: Human studies are small, decades old, and mostly used intravenous administration rather than how it is commonly sold today, with inconsistent conclusions about clinical benefit.
How does DSIP work?
A nonapeptide originally isolated from rabbit cerebral venous blood during slow-wave sleep, proposed to modulate sleep-wake regulation and dampen HPA-axis stress reactivity (ACTH/cortisol responses) rather than act as a classic sedative.
Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.
What is DSIP researched for?
Studied for insomnia and stress-related sleep disturbance.
- SleepStudied in sleep-cycle and stress-recovery research.
- Cognitive & moodStudied in memory, focus, mood, and neuroprotection research.
How far has the research gone?
Limited human data — several small human studies (mostly intravenous) from the 1980s-90s show mixed results, with some finding modest sleep benefits and others finding effects too weak to be clinically meaningful.
Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.
What should I check before buying?
- Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
- Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
- Vendor reputation. See how the vendor is talked about in the community before trusting a new name.
Research context only — VialGrade never gives dosing, medical, or human-use guidance.
The lab evidence
What we could verify
Each row answers a different question. Passing the identity test doesn’t mean it’s sterile or correctly dosed — we show each answer separately.
Identity — independent test
UnknownNo independent third-party COA is advertised or on record for this listing.
Measured purity (HPLC)
UnknownNo independent purity figure is on record for this listing.
Batch traceability
UnknownNo specific batch on this listing has been matched to an independent record.
Sterility & endotoxin
Not testedA purity COA does not measure sterility or endotoxins — no such test is on record.
Dose / fill accuracy
UnknownVialGrade does not independently measure vial fill or delivered dose.
These certificates are for DSIP across every maker VialGrade tracks — not necessarily Felix Chemical Supply’s own stock. This listing’s specific evidence is the matrix above.
Independent testing
Independent lab tests on record for DSIP
Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.
How does this data get here?
Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.
Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.
We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.
What a certificate does & doesn’t prove
Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.
Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.
99.2%
highest tested purity
| Certificate | Manufacturer | Batch | Purity | Content / dose | Lab | |
|---|---|---|---|---|---|---|
| https://www.htraresearch.cn | — | 99.20% | 10.56/10mg · full | Janoshik Analytical Still listed | Verify | |
| EZ Peptides | EZP-DSIP1003062026-02 | 98.39% | 11.37 mg; 11.61 mg; 11.51 mg | Janoshik Analytical | Verify | |
 | Chameleon Peptides | — | 98.15% | 14.44 mg | Janoshik Analytical | View |
 | Sports Technology Labs | 2025-10-06 | 90.17% | — | MZ Biolabs | View |
 | Ascension Peptides | 14-05260628 | 99.39% | — | Unverified lab · Kovera Labs | View |
No test for this vendor — but DSIP is independently characterized
This vendor doesn't advertise independent testing, and we hold no COA tied to Felix Chemical Supply specifically. We do hold 4 independent certificates for DSIP (median 98.3% purity) from other makers — real market context for what this compound tests at, though not proof of this vendor's product.
- This vendor. No third-party COA on record for Felix Chemical Supply.
- DSIP (market-wide). 4 independent COAs, median 98.3%.
Cross-checks the vendor’s testing claim against independent lab records. Purity is read from the lab's certificate as issued — VialGrade doesn't re-run the assay or sample the vial. It reflects one lab's result for one submitted batch, not every vial. Never a statement that a product is safe, sterile, or correctly dosed.
Research-use-only — not FDA-approved
Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.
Read the full US legal overview →General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.
Same compound
See the full DSIP market — all 19 vendors, price history & lab tests