Question 1

What are peptides?

Accepted Answer

Peptides are short chains of amino acids — the same building blocks that form proteins. They act as biological signaling molecules, directing a wide range of cellular processes including tissue repair, hormone regulation, metabolic function, and immune response. In research settings, synthetic peptides allow scientists to study specific biological pathways in controlled conditions with high precision.

Question 2

How are peptides different from proteins?

Accepted Answer

The primary difference is length. Peptides typically contain fewer than 50 amino acids, while proteins are longer chains. Due to their smaller size, peptides are generally easier to synthesize to high purity, more bioavailable in research models, and more specific in their receptor interactions — making them ideal research tools.

Question 3

What is a lyophilized peptide?

Accepted Answer

Lyophilization (freeze-drying) is the industry-standard preservation method for research peptides. Water is removed under vacuum, leaving a stable, dry powder that resists degradation during shipping and storage. All Peptide Basement compounds are supplied in lyophilized form, sealed in argon-backfilled vials for maximum shelf life.

Question 4

Why are some peptides harder to synthesize than others?

Accepted Answer

Longer sequences, repetitive motifs, and certain amino acid combinations (especially cysteine and hydrophobic residues) present challenges in solid-phase peptide synthesis. These compounds require additional synthesis cycles, orthogonal protection strategies, and extended HPLC purification — which is reflected in pricing for more complex compounds.

Question 5

Are these products for research use only?

Accepted Answer

Yes — absolutely. All compounds sold by Peptide Basement are strictly for in-vitro laboratory and pre-clinical research purposes only. They are not intended for, and must not be used for, human or veterinary consumption, diagnosis, or treatment. By purchasing, customers acknowledge and agree to our full Terms of Service.

Question 6

Do I need a license or credentials to purchase?

Accepted Answer

Our products are sold exclusively to qualified research professionals, institutions, and licensed laboratories. By placing an order, you confirm that you are a qualified researcher or representative of a research institution, are over 21 years of age, and intend to use the compounds solely for legitimate scientific research.

Question 7

Are research peptides legal to purchase?

Accepted Answer

In the United States, the purchase of research peptides for legitimate scientific research is legal. However, laws vary significantly by jurisdiction. It is the sole responsibility of the buyer to understand and comply with all applicable local, state, and federal regulations governing the purchase, possession, and use of research chemicals in their region.

Question 8

Can you provide documentation for institutional procurement?

Accepted Answer

Yes. We can provide product documentation, COAs, safety data sheets (SDS), and invoices suitable for institutional procurement processes. Contact us at sales@peptidebasement.com with your requirements.

Question 9

How are your products tested?

Accepted Answer

Every batch undergoes a comprehensive independent quality panel before it is approved for sale. Testing includes: HPLC (High-Performance Liquid Chromatography) for purity verification, Mass Spectrometry (MS) for molecular identity confirmation, FTIR spectroscopy for structural integrity, sterility testing, endotoxin (LAL) testing, and heavy metals screening. No batch ships without a passing COA.

Question 10

Who performs your third-party testing?

Accepted Answer

All Certificates of Analysis are issued by BTLabs, an independent ISO-compliant analytical laboratory located at 5730 Corporate Way, Suite 220, West Palm Beach, FL 33407. BTLabs performs all testing independently of our synthesis partners, ensuring unbiased results.

Question 11

What purity levels do you offer?

Accepted Answer

All compounds meet a minimum baseline of ≥95% HPLC-verified purity. Most compounds are available at ≥98% and ≥99% purity grades. The highest grade (≥99%) undergoes the most rigorous purification passes and is recommended for the most sensitive research applications.

Question 12

What is your purity guarantee?

Accepted Answer

If any product independently tests below its stated purity grade, we issue a full refund — no questions asked, no return required. We stand behind every COA we publish. Due to the nature of research compounds, all other sales are final.

Question 13

Where can I view Certificates of Analysis (COAs)?

Accepted Answer

COAs are available on every product page and in our dedicated Lab Tests section. You can search by compound name or lot number to verify your specific batch. We publish all lot-specific COAs, not generic batch averages.

Question 14

How are peptides packaged for shipping?

Accepted Answer

All compounds are supplied as lyophilized powders in research-grade glass vials with rubber stoppers, sealed under argon gas to prevent oxidation. Vials are packed with protective foam inserts inside rigid boxes. Cold packs are available upon request for temperature-sensitive applications, though lyophilized peptides are stable at ambient temperature for short transit periods.

Question 15

What are your shipping options and times?

Accepted Answer

We offer three tiers: USPS First Class (3–6 business days, $9.99 — free on orders over $175), USPS Priority Mail (2–4 business days, $14.99), and UPS 2-Day Air (guaranteed 2 business days, $24.99). Orders are processed and dispatched within 24 hours of payment confirmation.

Question 16

Do you offer free shipping?

Accepted Answer

Yes — free USPS First Class shipping is included on all US orders over $175. This threshold is calculated after any applicable discounts.

Question 17

Do you ship internationally?

Accepted Answer

We currently ship within the United States only. International shipping is actively in development. Sign up for our newsletter to be notified when international options become available.

Question 18

What happens if my package arrives damaged?

Accepted Answer

In the rare event of transit damage, contact us at support@peptidebasement.com within 48 hours of delivery with a photo of the damaged packaging and vials. We will arrange a replacement shipment at no cost.

Question 19

How should I store lyophilized peptides?

Accepted Answer

Unopened lyophilized peptides should be stored at –20°C in a standard laboratory freezer, away from light and moisture. Under these conditions, most compounds remain stable for 24–36 months. Avoid repeated freeze-thaw cycles — aliquot into single-use vials before reconstitution if extended storage is required after opening.

Question 20

What solvent should I use to reconstitute my peptide?

Accepted Answer

Solvent selection depends on the peptide's chemical properties. Most water-soluble peptides reconstitute cleanly in bacteriostatic water (BW). Peptides with basic residues (e.g., many GHRPs) may require dilute acetic acid (0.1%–1%). Highly hydrophobic peptides may require initial dissolution in DMSO followed by aqueous dilution. The product page for each compound includes specific solubility guidance.

Question 21

What is bacteriostatic water and why is it used?

Accepted Answer

Bacteriostatic water (BW) is sterile water containing 0.9% benzyl alcohol, which inhibits microbial growth. It is the preferred reconstitution solvent for most research peptides because it extends the usable shelf life of reconstituted solutions (typically 4–8 weeks at 4°C) compared to plain sterile water.

Question 22

How long are reconstituted peptides stable?

Accepted Answer

Once reconstituted in bacteriostatic water, most peptides are stable for 4–8 weeks at 4°C when handled aseptically. For longer-term storage, reconstituted aliquots can be stored at –80°C. Stability varies by compound — check individual product pages for specific guidance.

Question 23

How do I calculate the correct reconstitution volume?

Accepted Answer

Use the formula: Volume (mL) = Mass (mg) ÷ Target Concentration (mg/mL). For example, to prepare a 1 mg/mL solution from a 5 mg vial, add 5 mL of bacteriostatic water. Many researchers prepare a stock concentration (e.g., 1–2 mg/mL) and then dilute further for experimental use.

Question 24

How do I place an order?

Accepted Answer

Browse our catalog or shop by category, select your compound and purity grade, add to cart, and complete checkout. You will receive an order confirmation email with payment instructions. Orders are processed upon payment confirmation.

Question 25

What payment methods do you accept?

Accepted Answer

We accept Bitcoin (preferred — zero processing fees; CashApp is recommended for US customers) and Zelle® for US bank-to-bank transfers. Detailed payment instructions are included in every order confirmation email.

Question 26

Is there a minimum order amount?

Accepted Answer

No minimum order. You can purchase a single compound in any listed quantity. Volume discounts apply automatically in the cart for larger orders.

Question 27

Do you offer bulk or institutional pricing?

Accepted Answer

Yes. Tiered volume discounts are automatically applied at checkout. For large institutional, wholesale, or recurring orders, email sales@peptidebasement.com for a custom pricing quote.

Question 28

What is your return policy?

Accepted Answer

Due to the nature of research compounds, all sales are final — with one exception: if a product independently tests below its stated purity, we issue a full refund. If you receive a damaged or incorrect item, contact us within 48 hours and we will make it right.

Research Use Disclaimer

Frequently Asked Questions

About Peptides

Research Use & Compliance

Quality & Third-Party Testing

Shipping & Handling

Storage & Reconstitution

Ordering & Payment

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