449 third-party lab reports published Volume pricing on every peptide, applied automatically in the cart: 3% off 2–3 · 8% off 4–5 · 12% off 6–7 · 15% off 8–9 · 20% off 10–19 · 25% off 20–29 · 30% off 30–39 · 35% off 40+ units · solvents and lab supplies excluded 99.59% median purity across 254 lots 242 / 242 lots pass sterility

DSIP

โ˜… 4.8 (179 reviews)
175,000+ units shipped ยท 3 in 4 orders are reorders
10 tests ยท Batch 1672 ยท 99.09% purity
Vanguard Laboratory + Eagle Analytical Services Inc.
Verify online โ†—
Batch 1672 ยท tested 14.50โ€“14.69 mg
Quantity

For research use only. Not intended for diagnostic or therapeutic use. We do not work with patients.

Same-day shippingOrder by 2:30 PM MST.
Every new batch testedFull panel, independent labs.
Tested in the USALabs and support stateside.
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Certificate of analysis

Current batch for this size ยท tested March 31, 2026

Purity by batch ยท last 4 batches: 99.05 ยท 99.09 ยท 99.08 ยท 99.21

Batch#1672
Purity99.09%
TestsEarlier standard ยท 10 tests
TestedMarch 31, 2026

Labs on this batch: Vanguard Laboratory (ISO 17025:2017 / A2LA #6377.01.01) ยท Eagle Analytical Services Inc.

10 of 15 tests ยท 5 not on this report

IdentityUSP <621> ยท HPLC-UV/VIS
Matches reference standardVanguard
PASS
Chromatographic purityUSP <621> ยท HPLC-UV/VIS
99.03โ€“99.09%Vanguard ยท 3 vials tested
PASS
Assay, net peptide contentUSP <621> ยท HPLC-UV/VIS
14.50โ€“14.69 mgVanguard ยท 3 vials tested
PASS
Net peptide content variation between unitsUSP <905> ยท house check on 3 units
1.30%limit 10%
PASS
Content vs certificateUSP 90โ€“110% of label
97.3%
PASS
Adulterant screenHPLC-UV/VIS
Not on this report
โ€”
Heavy metalsUSP <232> / <233> ยท ICP-MS
ND ppmVanguard ยท 1 vial tested
PASS
EndotoxinsUSP <85> ยท LAL
PassVanguard ยท 1 vial tested
PASS
Residual solventsUSP <467> ยท GC-MS
Not on this report
โ€”
Trifluoroacetic acid (TFA)USP <503.1> ยท ion chromatography
Not on this report
โ€”
Container closure integrityUSP <1207> ยท dye ingress
Not on this report
โ€”
SolubilityUSP <1236> ยท visual
Not on this report
โ€”
SterilityUSP <71> ยท membrane filtration
PassVanguard ยท 1 vial tested
PASS
Sterility, rapid methodalternative to USP <71> ยท ScanRDI
PassEagle Analytical
PASS
ConformityQA approval
ApprovedVanguard
PASS
All batchesNewest first · every batch we’ve released for this product
Batch 17379 mg Aug 16, 202699.05%15 tests On sale View certificate ›
Batch 167215 mg Mar 31, 202699.09%10 tests On sale Showing
Batch 136415 mg Oct 6, 202599.08%8 tests View certificate ›
Batch 13525 mg Mar 26, 202599.21%7 tests View certificate ›

Common questions

From the help center · All articles ›

Tech specs

Form
Lyophilized powder
Tested mass
14.50โ€“14.69 mg
Methods
HPLC-UV/VIS ยท ICP-MS ยท LAL ยท membrane filtration ยท ScanRDI

Important research notice. This product is sold exclusively for in-vitro laboratory and research use. It is not a drug, supplement, cosmetic, or food, and is not intended to diagnose, treat, cure, or prevent any condition. For research use only. Not intended for diagnostic or therapeutic use. We do not work with patients. By purchasing, you confirm you are a qualified researcher aged 21 or older.

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Peptidology supplies research-use-only materials to qualified researchers aged 21 and over. Certificates and company information remain open to everyone.

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