Adamax
- 10mg lyophilized
$75.00 /vial
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Research-grade peptides
Purity you can verify.
Lab-tested peptides, with results posted. See the proof before you buy.
✦Priority Mail every order✦Same Day Shipping✦Free Shipping Over $150✦Certificates published by lot✦Secure Checkout
Certificates are published per lot as assays complete. Email us with the lot number on your vial for any lot not yet posted.
The full catalog
The lineup
Per research vial prices.
BPC/TB-500
- TB-500 10mg + BPC-157 10mg
$80.00 /vial
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CJC/IPA No DAC
- 20mg lyophilized blend
$100.00 /vial
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GHK-Cu
- 50mg lyophilized
$35.00 /vial
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Glutathione
- 1500mg lyophilized
$60.00 /vial
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HOS BW
- 10 mL vial
$24.99 /vial
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KLOW
- 80mg lyophilized blend
$100.00 /vial
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KPV
- 10mg lyophilized
$40.00 /vial
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Melanotan II
- 10mg lyophilized
$30.00 /vial
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MOTS-C
- 10mg lyophilized
$50.00 /vial
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NAD+
- 500mg lyophilized
$70.00 /vial
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PT-141
- 10mg lyophilized
$35.00 /vial
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Selank
- 10mg lyophilized
$35.00 /vial
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Semax
- 10mg lyophilized
$30.00 /vial
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SIG-31
- 10mg lyophilized
$75.00 /vial
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SNAP-8
- 10mg lyophilized
$30.00 /vial
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SS-RT
- 10mg / 20mg lyophilized
From $80.00 /vial
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0.0%
Mean assayed purity across 11 published lots — every figure backed by a downloadable certificate of analysis.
COA’s on file
Most vendors say “lab tested.” We show the identity, quantity, and purity. Hover any COA badge above to see one.
HPLC-MSPEAK PURITYLOT-TRACEABLE
We Are More Than Just A Vial.
Priority Mail on every order
Every order ships USPS Priority Mail, same day, tracked door to door — free over $150.
The Telegram community
Restock drops, new lot certificates, and direct line to the team.
99% purity guarantee
Thirty days to assay it yourself. Under 99%, we replace it or refund it — your choice.
Hands-on support
A real person answers questions about a lot or an order — not a queue.
About us
Built by researchers, for researchers
Sigma Stacks exists to make research-grade peptides verifiable. Too much of the market runs on label trust and mystery purity — our answer is to publish the data.
We ship lyophilized and sealed, with the proof attached. No hype and no human-use claims — just compounds for in-vitro laboratory research, documented to the lot.
PURITY
OR
REPLACED
OR
REPLACED
The purity guarantee
If an independent assay of your lot comes back below the certificate we filed, we replace it or refund it — no debate. Research-grade should mean research-grade.