Manufactured in the USA. Purity, proven.

Third-party verified by an accredited U.S. lab — UPLC purity, mass-spec identity, low endotoxin — with a Certificate of Analysis on every vial.

Shop the catalog See the proof

FROM $9.60 / VIAL · COA INCLUDED

Manufactured in the USA 🇺🇸
U.S. third-party tested
UPLC-verified purity
Free shipment protection

01 — The catalog

The research peptides you reach for, always in stock.

Every vial lyophilized, sealed, and shipped with a free batch-specific Certificate of Analysis — single-peptide purity ≥99% by UPLC, third-party verified by an accredited U.S. lab.

Click to view the catalogue →

Manufactured in the USA 🇺🇸
U.S. third-party tested
UPLC-verified purity
Free shipment protection

02 — THE STANDARD

We don't ask you to take our word for it. Every vial is weighed to the microgram, verified by UPLC and mass spectrometry, and shipped with its own certificate of analysis. Trust isn't a claim here — it's a document.

THE PROCESS — FROM U.S. MANUFACTURING TO YOUR BENCH · A DOCUMENTED CHAIN OF CUSTODY, EVERY CLAIM AUDITABLE

STEP 01SourcedVetted, fully traceable manufacturing partners.
STEP 02ManufacturedManufactured and lyophilized in the USA 🇺🇸 to spec under strict quality control.
STEP 03TestedIndependent third-party UPLC + mass spec on every single lot.
STEP 04DocumentedA batch-specific Certificate of Analysis is matched to your vial.
STEP 05ShippedDiscreet, tracked packaging with free shipment protection.

03 — CALIBRATION

Quantified,
not approximate.

0% single-peptide UPLC purity

0× UPLC + mass spec, every batch

0% of batches ship with a CoA

Manufactured in the USA 🇺🇸

Manufactured and verified in the U.S.

Every Tuned peptide is manufactured, lyophilized, tested and shipped in the United States — a domestic operation you can actually verify.

Stage 01

U.S. manufacturing

Manufactured to spec by vetted U.S. manufacturing partners.

Stage 02

U.S. lyophilization

Freeze-dried and sealed to spec under strict quality control.

Stage 03

U.S. third-party lab

Independently verified by accredited U.S. labs — UPLC, Mass Spec, Quantitation, LAL.

Stage 04

U.S. fulfillment

Stored and shipped from Miami, Florida with free shipment protection.

Why it matters: U.S. manufacturing and fulfillment means predictable storage, faster shipping, and a vendor you can actually verify.

04.1

Precise

QUANTIFIED, NOT APPROXIMATE

Every batch weighed to the microgram. The number on the label is the number in the vial.

04.2

Pure

THIRD-PARTY VERIFIED

Guaranteed purity confirmed by UPLC and mass spectrometry at accredited, independent U.S. labs.

04.3

Proven

TRUST YOU CAN AUDIT

A batch-specific certificate of analysis is included with every order. The proof ships with the product.

05 — Why tuned

Everything a serious research order should be.

Always in stock

Every best-seller ready to ship. No backorders, no waiting.

Volume discounts

Save up to 20% on bulk orders. The more you buy, the less you pay per vial.

Safe, protected shipping

Discreet, fully tracked packaging that keeps lyophilized peptides stable in transit.

A research community

Every purchase unlocks our private researcher community — peer insight and real-time support.

Independently verified purity

Every batch tested by accredited U.S. labs via UPLC and mass spec. Full CoA included free.

Shipment protection

Every order covered free. Lost, damaged or stolen in transit? We reship at no cost.

06 — VERIFICATION

Quality you
can verify.

Every batch is independently tested by accredited U.S. laboratories. We give you the proof, not a promise — and it's yours to inspect before a single vial is opened.

0single-peptide UPLC purity

0independent quality checks

0U.S. lab verified

UPLC (Purity)High-purity confirmation — free from impurities, degradation and synthesis byproducts.
Mass Spec (Identity)Molecular-weight confirmation that the compound is exactly what the label says.
Quantitation (Net Peptide Content)Verified mass — every vial confirmed to contain the stated quantity, down to the microgram.
LAL (Endotoxin)Endotoxin testing confirms bacterial endotoxin levels below 0.05 EU/mL.

CERTIFICATE OF ANALYSIS

COMPOUNDSAMPLE COMPOUND

LOT NUMBERTR-2908661

NET QUANTITY5 MG

IDENTITY (MS)CONFIRMED

PURITY (UPLC)99.33%

ENDOTOXIN (LAL)< 0.05 EU/mL

LABACCREDITED · U.S.

▸ View a Certificate of Analysis

07 — Questions

Everything you need to know.

Still unsure? Our team answers research questions every day.

Browse the catalog

What purity are your peptides, and how is it verified?

Single-peptide products are guaranteed ≥99% pure by UPLC; blends are >98%. Each batch is independently tested by accredited U.S. labs using UPLC (purity) and mass spectrometry (identity). Every order ships with a Certificate of Analysis showing the exact purity for that lot.

What is a Certificate of Analysis, and how do I read it?

A CoA is an official lab document verifying your peptide's quality. Key sections: Purity (by UPLC), Identity (confirmed via mass spec), Net peptide content, and Endotoxin level (below 0.05 EU/mL). Each CoA is batch-specific and tied to the lot number printed on your vial.

How should peptides be stored?

Lyophilized (freeze-dried) peptides are very stable. For short-term storage (under 3 months), a cool, dark place at room temperature is fine. For long-term storage, refrigerate at 2–8°C or freeze at −20°C, and avoid repeated freeze-thaw cycles. Properly stored lyophilized peptides can remain stable for 2+ years.

How fast do you ship, and is cold shipping required?

Orders placed before 2 PM ET are dispatched the same day (otherwise the next business day). DHL Max standard shipping arrives in 3 business days or better, and FedEx 2-Day Air is available at checkout except for Hawaii. Every order includes free shipment protection. Lyophilized peptides are stable at room temperature and don't require cold shipping. All orders ship in discreet, unlabeled packaging.

What is your return and refund policy?

We stand behind the quality of every batch. If you receive a damaged product, an incorrect item, or a peptide that doesn't meet its stated purity on the CoA, contact us for a full refund or replacement. Due to the nature of research materials, we cannot accept returns on opened products unless there is a quality issue.

Are these peptides for human use?

No. All tuned peptides are sold strictly for research, laboratory and educational purposes only. They are not approved for human consumption, veterinary use, or any therapeutic application. By purchasing, you confirm you are a qualified researcher and will use the products in accordance with all applicable laws and regulations.

08 — The guarantee

Risk stays with us, not you.

We don't compromise on quality — and we put our money behind it.

Money-back Purity Promise

Every batch is guaranteed to meet the purity on its Certificate of Analysis — receive anything off-spec and we refund you in full.