Answered from the record, not from memory.

Questions

Can you test my peptide?

Peptides are UV active, so any commercially available peptide can be tested. The one qualification is access to an analytical reference standard for obscure peptides, which can be met with raw material instead. The peptide directory lists common names; coverage applies to peptides not listed just the same.

Which tests apply to a peptide?

All seven. Three speak to the peptide itself: Potency (concentration), Purity, Mass Confirmation. Four speak to the product it arrives in and establish nothing about the peptide: Endotoxins, Sterility, Metals, pH.

• Potency (concentration): What is the concentration of peptide in the vial, checked against the label claim?
• Purity: What is the purity of the peptide in the vial, checked against the label claim?
• Mass Confirmation: Is the peptide what the product states it is?
• Endotoxins: Are endotoxins present in the sample?
• Sterility: Is the product free from bacterial contamination?
• Metals: What heavy metal concentrations are present in the product?
• pH: What is the pH of the product?

How much sample do I send?

It depends on the test. Potency (concentration), Purity, Mass Confirmation share one sample.

• Potency (concentration): 10mg. The same 10mg sample serves Potency, Purity, and Mass Confirmation together.
• Purity: 10mg. The same 10mg sample serves Potency, Purity, and Mass Confirmation together.
• Mass Confirmation: 10mg. The same 10mg sample serves Potency, Purity, and Mass Confirmation together.
• Endotoxins: A complete vial of the product.
• Sterility: At least 2 vials of the product.
• Metals: At least 10mg; more is preferred.
• pH: 2 to 5mg.

The submission guide covers labeling, packing, and shipping.

How long does testing take?

Typical turnaround, in days, is an estimate and not a promise. Turnaround is measured from sample receipt, not from payment.

• Potency (concentration): 2 to 3 days. Instrument run time is 26 minutes. Same day is possible; 2 to 3 days is typical, depending on sample volume at the laboratory.
• Purity: 2 to 3 days. Instrument run time is 26 minutes. Same day is possible; 2 to 3 days is typical, depending on sample volume at the laboratory.
• Mass Confirmation: 2 to 3 days. Instrument run time is 26 minutes. Same day is possible; 2 to 3 days is typical, depending on sample volume at the laboratory.
• Endotoxins: Up to 1 day. A rapid kit result takes under an hour. The plate reader method typically takes 1 day.
• Sterility: 14 days. Traditional method per USP <71>. A rapid method on the BacT/ALERT system, with a 7 day turnaround, is planned but not yet offered.
• Metals: Run time is several minutes. Same day is possible.
• pH: Immediate.

Can I get a result the same day?

Same day rush is available on everything except sterility. How rush is ordered and what it costs is not yet published.

Does the endotoxin test tell me how much endotoxin is present?

No. It establishes: Whether endotoxins are present in the sample, as a pass or fail result. It does not establish: Anything about the peptide itself. The quantity of endotoxin: the result is presence or absence only, a presence screen rather than a quantitation.

Is a rapid sterility test available?

Not yet. Traditional method per USP <71>. A rapid method on the BacT/ALERT system, with a 7 day turnaround, is planned but not yet offered.

Does a purity result tell me the peptide is what the label says?

No. Purity does not establish: Peptide identification. Identity is what Mass Confirmation answers: Is the peptide what the product states it is?

What do I receive?

A COA from the laboratory for each test.

• Potency (concentration): A final concentration value (for example 10.14mg) on a COA.
• Purity: A final purity value (for example 99.67 percent) on a COA.
• Mass Confirmation: A mass spectrum and a mass accuracy value.
• Endotoxins: A pass or fail statement on a COA.
• Sterility: A pass or fail statement on a COA.
• Metals: A list of metals and their concentrations on a COA.
• pH: The pH level on a COA.

What are the packages?

• Potency, Purity, and Mass Confirmation: All three run from a single injection on the HPLC-MS and share one 10mg sample. The laboratory's usual package.
• Full Panel: All seven tests.

How do I ship samples?

Each vial labeled clearly, packed with a chain of custody form, on ice, overnight preferred. Send samples in their final form packaging. The laboratory's capacity is about 80 samples a day; sending more than that at once needs advance notice.

Ship to: CertaSafe Labs, 780 Chadbourne Rd, Suite A, Fairfield, CA 94534. Receiving is open 8 to 5, daily. Couriers can leave packages at the front desk.

What happens if my sample arrives damaged?

Any damaged product arriving is unusable and is rejected. The examples the laboratory gives: a damaged vial, a missing label, a warm arrival, and an insufficient amount. When a sample is rejected, the customer is contacted and a resampling is requested. A rejected sample has not started its clock, and samples in one order move independently, so one rejected sample never stops the rest.

Do you return samples?

No. Samples are kept for 45 days after testing, then disposed of.

Where is the laboratory?

CertaSafe Labs performs testing in Fairfield, California.

What does testing cost?

Standardized prices are public, per sample, on the pricing page, for each of the seven tests and the two packages. A package price applies to any sample that carries all of that package's tests. Rush pricing is not yet published.