About Signal
A research peptide company built on a single, testable promise: know exactly what is in the vial.
The category runs on trust. Signal makes that trust checkable. Every batch is tested by a named third-party lab for purity and identity, its net peptide content is measured and disclosed, and its certificate of analysis is published where anyone can look it up by batch number.
For research use only. Not for human or veterinary use.
Why Signal exists
For years the peptide market ran on reputation. Vendors asked buyers to trust a brand name, a forum thread, or an email promising a certificate that never quite arrived.
When several of the category's largest names closed in a matter of months, that model collapsed, and a careful audience was left with a single question: who can be trusted now.
The answer was never going to be another brand asking for trust. It was going to be proof. Trust in this category has moved from reputation to verification: named-lab testing, batch-specific certificates, and results published on a database the seller cannot edit. "Email us for a certificate" is now treated as a warning sign, not a courtesy.
Signal was built for that shift. Not to claim the highest purity, but to show it, batch by batch, in documents anyone can confirm without taking the company's word for anything.
Know exactly what is in the vial.
How we prove it
Anyone can print "third-party tested" on a label. Signal treats verification as a product, not a phrase.
- 01
Tested by a named lab
Each batch is analyzed by a named third-party laboratory. Purity is measured by HPLC. Identity is confirmed by mass spectrometry. Purity alone is not enough, because a vial can be pure of the wrong compound.
- 02
Net content, not just purity
A vial can read 99% pure and still hold less peptide than its label suggests, because of residual moisture and salts. Signal measures and publishes the actual milligrams of peptide in the vial. Almost no competitor shows this.
- 03
Published, traceable, checkable
The certificate is published to the lab's own public database, and the batch number is printed on the vial. Scan the code or enter the number, and the record comes straight from the lab. Signal cannot edit it and cannot hide it.
- See how we verify
The standard, in numbers
- 99%+
- Minimum purity, by HPLC, on every batch.
- 2
- Independent assays per batch: HPLC purity and mass-spec identity.
- 100%
- Of batches traceable to a public certificate of analysis.
- 3 days
- Typical delivery, compounded and shipped in America.
What we stand for
Four commitments that decide what earns the Signal name.
Proof over promises
Every batch is tested by a named third-party lab, and the results are public. If it cannot be verified, it does not ship.
Transparent to a fault
Signal publishes what others hide: net peptide content, the testing method, the named lab, and the batch number on the vial.
Made in America
Compounded and shipped from the United States. No customs risk, no long waits, same-day dispatch before noon Pacific.
Precise, never hyped
No countdown timers, no miracle claims, no comparisons to brand-name drugs. Specifications do the talking.
Compounded in America
Made and shipped from the United States.
Signal manufactures and ships from within the United States. That means no border seizures, no customs delays, and no shipment stuck in a facility overseas. Orders placed before noon Pacific dispatch the same day by USPS Priority.
- Ships from the USA
- About 3-day delivery
- Free shipping over $200
- Free reship on anything lost or damaged in transit
Standing behind every vial
Real people, a real process, and clear terms. If something is wrong with an order, Signal makes it right.
Where we operate
Compounded and shipped from the United States. For questions about a product, a test result, or an order, Signal's support team responds directly.
Contact supportFor research use only
Signal products are sold for laboratory and research use only. Not for human or veterinary use. All product information describes molecules and published research in the third person and is not medical advice or a protocol. You must be 21 or older to purchase.