Lab Supplies

🧰 What supplies are needed to reconstitute lyophilized peptides?

Reconstitution means dissolving a freeze-dried powder in a defined volume of liquid so the solution has a known concentration. In general terms, a bench needs the solvent that the laboratory method specifies, measuring equipment chosen and calibrated by the lab, a clean work surface, labels for recording compound, concentration and date, and the storage conditions printed on the product label. The method, not the catalog, decides which solvent is compatible with a given peptide; some protocols call for bacteriostatic water, others for sterile water or a buffer.

📋 Lab supplies at a glance

Prices are listed at the time of writing. Manufacturer, preservative concentration and pad specifications are not yet verified on these listings, so email [email protected] for the current label before ordering if your method depends on them.

💧 Bacteriostatic water vs sterile water

The difference is the preservative. A manufacturer’s bacteriostatic water label, for example, lists 0.9% (9 mg/mL) benzyl alcohol as a bacteriostatic preservative, a pH of 5.7 within a 4.5–7.0 range, and a multiple-use container designed for repeated withdrawals (Pfizer bacteriostatic water label). The same company’s sterile water label states that the product contains no bacteriostat, antimicrobial agent or added buffer and is supplied only in single-use containers (Pfizer sterile water label).

Those labels describe specific manufacturers’ products and illustrate how the two categories differ; they do not describe the water sold here. The practical points are that bacteriostatic water contains an additional ingredient, which a method may or may not tolerate, and that sterile water without preservative is packaged for single use. Check the label on the container you receive for its preservative, expiry and any limits after opening.

🧮 How to calculate peptide concentration

Concentration equals the mass of peptide divided by the volume of liquid. A 10 mg vial brought to 2 mL gives 5 mg/mL; a 5 mg vial brought to 2.5 mL gives 2 mg/mL. For blends, repeat the division for each component, since each has its own mass. The peptide calculator performs the arithmetic, which reduces transcription errors when preparing several vials.

🧻 Alcohol prep pads

The listing contains 200 pads per pack and no peptide or water. The name and count alone do not establish alcohol type or concentration, pad dimensions, sterility or individual wrapping, so rely on the printed packaging for those details and for lot and expiry information. Follow the label for intended use, handling and disposal.

🚚 Ordering lab supplies in the US

Ellepeptides ships to addresses within the United States, with prices in U.S. dollars. Shipping is free when the merchandise subtotal exceeds $200 after coupon discounts (before taxes and shipping); otherwise, standard shipping is $15.99 per order. The available payment methods and delivery options are shown at checkout; the shipping policy has the current details.

💬 Lab supplies FAQ

What supplies do I need to reconstitute peptides?

At minimum, a solvent specified by your laboratory method, measuring equipment your lab has validated, a clean work surface and labels for compound, concentration and date. Whether the solvent should be bacteriostatic water, sterile water or a buffer depends on the method and the peptide’s compatibility, not on the catalog listing.

What is the difference between bacteriostatic water and sterile water?

Bacteriostatic water contains a preservative; one manufacturer’s label lists 0.9% benzyl alcohol in a multiple-use container. Sterile water, by the same manufacturer’s label, contains no bacteriostat, antimicrobial agent or added buffer and comes only in single-use containers. Your method decides which is appropriate.

Where can I buy bacteriostatic water in the US?

Ellepeptides lists bacteriostatic water in a 30 mL container, shipped within the United States with prices in USD. It can travel in the same parcel as a peptide order, which helps toward the $200 merchandise subtotal for free shipping. Confirm the preservative and expiry on the supplied label.

What is in bacteriostatic water?

By definition it is water with a bacteriostatic preservative. The Pfizer label used as a reference here lists benzyl alcohol at 0.9% (9 mg/mL). The manufacturer and preservative concentration for the Ellepeptides listing have not yet been verified on its page, so email support for the current label.

How do I calculate peptide concentration?

Divide the peptide mass by the liquid volume. A 10 mg vial in 2 mL gives 5 mg/mL; a 5 mg vial in 1 mL gives 5 mg/mL as well. The Ellepeptides peptide calculator does this division for any mass and volume, which helps when preparing several vials at once.

Does bacteriostatic water come with peptide orders?

No. Research vials are supplied as freeze-dried powder, and bacteriostatic water is a separate listing that you add to the cart if your method calls for it. Each vial’s milligram figure describes powder mass only, not a prepared solution or a concentration.

Are the alcohol prep pads sterile?

That has not been confirmed for the current listing. Sterility, individual wrapping and alcohol concentration should be checked on the manufacturer’s packaging, and [email protected] can send the current label before you order if your procedure depends on a particular specification.

Related categories: All research peptides · Peptide blends · Weight loss peptides. For laboratory research only. Not for human or veterinary use.