Bacteriostatic water for peptide reconstitution, 10ml vial from Real Peptides at $4.80.
Real Peptides Bacteriostatic Water 10ml - Product Review
$4.80
Our rating 4.0/5
Price: $4.80 (sale) / Size: 10ml / Preservative: 0.9% Benzyl Alcohol / Brand: Real Peptides
Real Peptides Bacteriostatic Water 10ml at $4.80 (sale). USP-grade with 0.9% benzyl alcohol. Sterility documentation, shipping and reconstitution use details reviewed.
USP-grade quality with 0.9% benzyl alcohol preservative
$4.80 sale price is very competitive
Published COA and sterility documentation
$4.80 sale price (regular $9.60) may not be permanent
Single 10ml size option
Key Features
- Price: $4.80 (sale) / $9.60 (regular)
- Volume: 10ml
- Grade: USP (United States Pharmacopeia)
- Preservative: 0.9% benzyl alcohol
- Production: Sealed under controlled cleanroom conditions
- SKU: RP-BAC10V
- Availability: In stock
The 0.9% benzyl alcohol concentration falls within the standard pharmaceutical range for bacteriostatic water. This level is sufficient to prevent microbial growth during the multi-draw use period while remaining at concentrations commonly used in injectable preparations.
What's Inside
- Base: Sterile purified water
- Preservative: Benzyl alcohol at 0.9% w/v
- Volume: 10ml per glass vial
- Grade: USP
- Additional excipients: None (no buffers, colorants, or additives)
A single 10ml vial provides enough bacteriostatic water to reconstitute several peptide vials, depending on the volume added to each. Common reconstitution volumes range from 1ml to 2ml per peptide vial. At those volumes, one vial of bacteriostatic water can service 5 to 10 peptide reconstitutions. This makes it a cost-effective supply item at under $1.00 per reconstitution.
- Product
- Real Peptides Bacteriostatic Water 10ml
- Price
- $4.80 (sale)
- Regular Price
- $9.60
- Volume
- 10ml
- Grade
- USP
- Preservative
- 0.9% Benzyl Alcohol
- Production
- Cleanroom Sealed
- SKU
- RP-BAC10V
- Stock
- In Stock
- Editor Rating
- 4.0 / 5
How to Store and Handle
Store bacteriostatic water at room temperature, away from direct sunlight and excessive heat. Once the rubber stopper has been punctured, the vial should be used within 28 days. The benzyl alcohol preservative provides microbial inhibition during this window, but proper aseptic technique remains important for every draw.
Wipe the rubber stopper with an alcohol swab before each use. Use a new sterile syringe for every draw. Do not freeze bacteriostatic water, as freezing can compromise the glass vial and alter the solution characteristics. If the contents appear cloudy or contain visible particles, discard the vial and open a fresh one. When adding bacteriostatic water to a lyophilized peptide vial, inject the liquid slowly along the inner wall to avoid disrupting the powder cake.
Check price at Real Peptides
Sold and shipped by Real Peptides. Price checked October 2026. We may earn a commission.
Real Peptides Bacteriostatic Water is a 10ml USP-grade sterile water vial priced at $4.80 (sale price, regular $9.60). It contains 0.9% benzyl alcohol as a preservative and is sealed under controlled cleanroom conditions. The product is in stock and ships from the United States. This is a reconstitution supply, not a peptide. We evaluated the listing, checked the specifications, and scored it against the same four editorial criteria used for all products in our reviews.
Real Peptides Bacteriostatic Water Overview
Bacteriostatic water is sterile water preserved with a small concentration of benzyl alcohol. The preservative inhibits bacterial growth, allowing the vial to be used for multiple draws over a period of up to 28 days. This makes it different from sterile water for injection, which is single-use only and must be discarded after the first puncture. Bacteriostatic water is the standard solvent for reconstituting lyophilized peptide powders in research settings.
Real Peptides offers this product as a companion supply for their peptide catalog, which includes BPC-157 and TB-500. At $4.80 per vial, the pricing is competitive with standalone bacteriostatic water from dedicated supply vendors. The USP designation means the product meets United States Pharmacopeia standards for purity, conductivity, and sterility. Filling takes place under controlled cleanroom conditions, and each vial is sealed at the point of fill.
Our Verdict
Real Peptides Bacteriostatic Water earns 4.0 out of 5 from our editorial team. The USP designation, 0.9% benzyl alcohol concentration, and cleanroom sealing process meet established pharmaceutical standards. At $4.80 per vial, the cost is low enough that it adds minimal overhead to a peptide reconstitution workflow.
There are no significant weaknesses with this product. It is a straightforward supply item that does its job. The only minor consideration is that no bulk pricing option is listed for researchers who need multiple vials. Even without bulk discounts, the per-unit cost remains low. We recommend purchasing at least one vial alongside any lyophilized peptide order from Real Peptides. For researchers building a BPC-157 and TB-500 stack, this is an essential companion product for both BPC-157 and TB-500 vials.
Our rating
4.0out of 5
Rated by the BPC-157 TB-500 Stack editorial team, October 2026
Bacteriostatic water for peptide reconstitution, 10ml vial from Real Peptides at $4.80.
USP-grade quality with 0.9% benzyl alcohol preservative
$4.80 sale price is very competitive
Published COA and sterility documentation
$4.80 sale price (regular $9.60) may not be permanent
Single 10ml size option
FAQ - Real Peptides Bacteriostatic Water
What is bacteriostatic water used for?
It reconstitutes lyophilized peptide powders into a liquid solution suitable for research use. The benzyl alcohol preservative allows the vial to be drawn from multiple times over 28 days without bacterial contamination. It is the standard solvent for peptide reconstitution.
How much bacteriostatic water should I add to a peptide vial?
The volume depends on the peptide amount and the desired concentration. Common reconstitution volumes range from 1ml to 2ml per peptide vial. Use our reconstitution calculator for specific calculations based on vial size and target concentration.
Is this bacteriostatic water USP grade?
Yes. The product meets United States Pharmacopeia quality standards, which set expectations for purity, conductivity, total organic carbon, particulate matter, and sterility. The 0.9% benzyl alcohol concentration is within the standard pharmaceutical specification.
How long does bacteriostatic water last after opening?
Use the vial within 28 days of the first puncture. The benzyl alcohol preservative inhibits bacterial growth during this period. Always swab the stopper with alcohol before each draw and use a sterile syringe for every withdrawal.
Can I use sterile water instead of bacteriostatic water?
Sterile water for injection can be used but is single-use only. Once the vial is punctured, it must be discarded because it lacks a preservative. Bacteriostatic water is preferred for multi-draw protocols because the benzyl alcohol prevents microbial contamination between uses.
