99%+ Purity
Guaranteed per batch
Licensed Peptides’ Reconstitution Solution is a sterile aqueous solution containing 0.9% benzyl alcohol, formulated to inhibit the growth of microorganisms and support sterility during laboratory handling. Its bacteriostatic properties make it a widely used reagent in research environments where repeated vial access and controlled preparation procedures are required.
Licensed Peptides supplies Reconstitution Solution manufactured under strict quality standards:
When used in conjunction with high-purity research materials, including LPS-free and endotoxin-free research peptides and peptide blends, bac water helps maintain experimental consistency and reproducibility. Its formulation supports predictable dilution behavior and helps preserve the chemical stability and structural integrity of sensitive research compounds over extended study timelines.
Note: While benzyl alcohol suppresses microbial growth, it does not sterilize contaminated solutions. Therefore, comprehensive laboratory sanitation protocols, validated storage conditions, and disciplined handling practices remain mandatory.
Reconstitution SolutionProduct Specifications
| Product Name | Reconstitution Solution |
| Application | Research Use Only |
| Sterility | Sterile |
| Benzyl Alcohol | 0.9% |
| Quality Control | Batch Verified |
| Manufacturing | Quality-Controlled Production |
| Storage | Follow Product Label Instructions |
Important: Licensed Peptides sells Reconstitution Solution as a research reagent for peptide reconstitution. It is not a medical product and MUST not be used for any human or veterinary injection.
You can learn more about bacteriostatic water and what it is on our site.
| Form supplied | Lyophilized powder |
|---|---|
| Application | Research use only |
In studies involving delicate cellular systems or tissue samples, this solution is particularly valuable for ensuring the accuracy of dilution processes and maintaining consistency across experimental replicates. Its bacteriostatic properties help mitigate microbial interference that could otherwise affect the validity and reproducibility of research outcomes.
For storage, bacteriostatic water should be maintained at ambient temperature and protected from light, heat, and moisture. Unopened vials generally retain stability for up to two years; however, once opened, the contents should be discarded within 28 days to preserve sterility and effectiveness.
Bacteriostatic water is water for injection containing 0.9 % benzyl alcohol as a preservative. Its role in a peptide workflow is a formulation one: the alcohol suppresses microbial growth in a multi-use vial, while the peptide itself remains subject to the ordinary solution-phase degradation routes — hydrolysis, deamidation of asparagine and glutamine, oxidation of methionine and tryptophan, and aggregation.1 Those routes are the reason peptides are supplied freeze-dried in the first place: removing water suppresses them, and reconstitution restarts them.2 Stability after reconstitution therefore depends on pH, ionic strength, temperature and the number of freeze-thaw cycles the solution is put through, not on the preservative.1
Peptides, which are short amino acid chains, demand careful handling and controlled storage conditions. In most research laboratories, peptides are distributed in a lyophilized (freeze-dried) form that must be dissolved before use. Bacteriostatic water is commonly chosen for this reconstitution due to its sterility and antimicrobial properties.
Preservation of Sample Integrity: Because it is sterile and contains a bacteriostatic agent, this water protects delicate peptide samples from microbial contamination, maintaining their purity throughout experimental use.
Ease of Use: Since bacteriostatic water can be safely used multiple times, it enables researchers to draw several aliquots from one vial — ideal for working with expensive or limited peptide samples.
Short-Term Stability: The inclusion of benzyl alcohol inhibits bacterial growth, extending the usable life of peptide solutions for short-term storage.
Protein studies also require stringent contamination control to ensure experimental reliability. Like peptides, many proteins arrive as powders that must be reconstituted. Bacteriostatic water provides a sterile and stable solvent environment for this purpose.
Manning and colleagues’ 2010 update in Pharmaceutical Research catalogues the chemical and physical instability routes that act on peptides and proteins once they are in solution, and the formulation variables that control them.1
Wang’s 2000 review in International Journal of Pharmaceutics covers lyophilisation and the development of solid peptide and protein preparations, including the role of residual moisture in solid-state stability.2
Maintaining Purity: The bacteriostatic effect of benzyl alcohol helps preserve the cleanliness and integrity of protein samples, even after multiple withdrawals from the same vial.
Experimental Consistency: Using the same sterile solvent across multiple protein preparations improves reproducibility and reduces unwanted microbial variables.
Wide Compatibility: Bacteriostatic water is suitable for use with many proteins. However, researchers should always verify that their specific protein is not sensitive to benzyl alcohol, as it may interfere with certain enzymes or delicate protein structures.
Note: Always assess solvent compatibility during method validation to prevent adverse interactions with sensitive proteins.
Beyond reconstituting peptides and proteins, bacteriostatic water serves several additional laboratory roles:
Sample Dilution: Used for creating precise concentrations in analytical and biological assays.
Buffer and Reagent Preparation: Acts as a clean base for preparing solutions and buffers.
Instrument Maintenance: Provides a sterile rinse for laboratory tools, including pipettes and automated liquid-handling systems.
In automated research environments, bacteriostatic water ensures that reagents remain sterile and uncontaminated over multiple handling cycles, supporting reliable and reproducible experimental outcomes.
Many research compounds require precise dilution ratios and controlled reconstitution conditions. Bacteriostatic water provides a stable environment that supports gradual, uniform mixing without introducing unwanted contaminants. Its production under USP-grade manufacturing standards helps ensure consistency from batch to batch.
The benzyl alcohol content does not merely serve as a labeling feature; it actively inhibits microbial growth within the vial following access. In laboratories where materials may be accessed multiple times over ongoing experiments, this antimicrobial property helps reduce variables related to contamination risk, supporting data reliability and experimental accuracy.
Certain compounds are highly sensitive to environmental changes, including pH fluctuations and microbial exposure. Bacteriostatic water offers a gentler and more stable solution environment, making it a preferred choice for preparing delicate research materials that require careful handling.
Because bacteriostatic water supports multiple withdrawals, it significantly reduces the need for frequent replacement. This efficiency is especially valuable in laboratories managing high research volumes or long-term studies, where budget allocation and material conservation are ongoing considerations.
For laboratory research use only. Products on this website are intended solely for in-vitro research. They are not medicines, have not been evaluated by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease. Any administration to humans or animals is strictly prohibited.
Test
Our peptides are produced exclusively for laboratory and scientific research purposes.
Licensed Peptides™ products are developed using industry-standard synthesis and purification protocols, making them suitable for in vitro research, analytical testing, and experimental models.
Strict process controls ensure reproducibility, allowing researchers to work with confidence across experiments.
Our peptides are commonly used in research involving:
All products are intended for research use only and are not for human or animal consumption, therapeutic use, or clinical application.
At Licensed Peptides™, quality isn’t a claim — it’s a controlled, repeatable process.
Every peptide we produce follows a strict, pharma-grade workflow designed to ensure purity, stability, and consistency from synthesis to delivery.
All peptides are synthesized in sterile, controlled environments to eliminate contamination risk and ensure batch consistency.
We use advanced High-Performance Liquid Chromatography (HPLC) to separate and verify peptide purity with precision.
Each batch undergoes heavy metal and endotoxin screening to ensure it is free from hidden contaminants.
We start with rigorously tested amino acids and reagents, ensuring integrity at the molecular level.
Freeze-dried peptides maintain long-term stability, potency, and reliability for research applications.
Every vial is protected from oxygen and moisture, preserving structural integrity during storage and transit.
From synthesis to delivery, every step is engineered to meet the expectations of professionals who require accuracy, consistency, and reliability.
For laboratory research use only. Not for human or veterinary use.
We understand that timing and product integrity are critical for research.
| Ships to | United States (including minor outlying islands) |
|---|---|
| Processing days | Monday to Friday, excluding holidays |
| Daily cut-off | Paid orders placed before 4:00 PM PST are typically shipped the same business day |
| Free shipping | FedEx 2-Day Express on orders over $200 and for VIP members |
| Standard | USPS Ground Advantage, 3–7 business days (not guaranteed) — $8.95 |
| Expedited | FedEx 2-Day $11.95 · UPS 2-Day $19.95 · FedEx Next Day $44.99 |
| Signature | Required on delivery for orders of $1,000 or more |
Products are stored in industrial-grade freezers prior to shipment to maintain stability and purity.
Each order is carefully packed to protect against temperature fluctuations, moisture exposure, and physical damage during transit.
Once your order has shipped you will receive a tracking number by email, so you can monitor delivery progress.
Orders are dispatched domestically from a U.S.-based operation, so there are no international customs steps.
Shipping times are estimates and begin after order processing. Delays may occur due to carrier issues, weather, or other unforeseen factors, and delivery dates are not guaranteed. Full terms are in our Shipping & Delivery Policy.
For laboratory research use only. Not for human or veterinary use.
| Lyophilized, in transit | Stable for shipping for up to 3–4 months |
|---|---|
| Lyophilized, short term | Room temperature is usually adequate for several weeks; refrigeration under 4°C (39°F) is generally acceptable |
| Lyophilized, long term | Freezer at -80°C (-112°F) for several months to years |
| After reconstitution | Refrigerated; stable for up to 30 days |
| Light and moisture | Keep cold and away from light in the original sealed vial |
All of our products are manufactured using the lyophilization (freeze drying) process, which keeps them stable for shipping for up to 3–4 months.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until it is reconstituted with bacteriostatic water.
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used in the next several days, weeks or months, short-term refrigeration under 4°C (39°F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
For longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80°C (-112°F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
Once the peptides are reconstituted with bacteriostatic water, they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
For laboratory research use only. Not for human or veterinary use.
Licensed Peptides’ Reconstitution Solution is a sterile aqueous solution containing 0.9% benzyl alcohol, formulated to inhibit the growth of microorganisms and support sterility during laboratory handling. Its bacteriostatic properties make it a widely used reagent in research environments where repeated vial access and controlled preparation procedures are required.
Licensed Peptides supplies Reconstitution Solution manufactured under strict quality standards:
When used in conjunction with high-purity research materials, including LPS-free and endotoxin-free research peptides and peptide blends, bac water helps maintain experimental consistency and reproducibility. Its formulation supports predictable dilution behavior and helps preserve the chemical stability and structural integrity of sensitive research compounds over extended study timelines.
Note: While benzyl alcohol suppresses microbial growth, it does not sterilize contaminated solutions. Therefore, comprehensive laboratory sanitation protocols, validated storage conditions, and disciplined handling practices remain mandatory.
Reconstitution SolutionProduct Specifications
| Product Name | Reconstitution Solution |
| Application | Research Use Only |
| Sterility | Sterile |
| Benzyl Alcohol | 0.9% |
| Quality Control | Batch Verified |
| Manufacturing | Quality-Controlled Production |
| Storage | Follow Product Label Instructions |
Important: Licensed Peptides sells Reconstitution Solution as a research reagent for peptide reconstitution. It is not a medical product and MUST not be used for any human or veterinary injection.
You can learn more about bacteriostatic water and what it is on our site.
| Form supplied | Lyophilized powder |
|---|---|
| Application | Research use only |
In studies involving delicate cellular systems or tissue samples, this solution is particularly valuable for ensuring the accuracy of dilution processes and maintaining consistency across experimental replicates. Its bacteriostatic properties help mitigate microbial interference that could otherwise affect the validity and reproducibility of research outcomes.
For storage, bacteriostatic water should be maintained at ambient temperature and protected from light, heat, and moisture. Unopened vials generally retain stability for up to two years; however, once opened, the contents should be discarded within 28 days to preserve sterility and effectiveness.
Bacteriostatic water is water for injection containing 0.9 % benzyl alcohol as a preservative. Its role in a peptide workflow is a formulation one: the alcohol suppresses microbial growth in a multi-use vial, while the peptide itself remains subject to the ordinary solution-phase degradation routes — hydrolysis, deamidation of asparagine and glutamine, oxidation of methionine and tryptophan, and aggregation.1 Those routes are the reason peptides are supplied freeze-dried in the first place: removing water suppresses them, and reconstitution restarts them.2 Stability after reconstitution therefore depends on pH, ionic strength, temperature and the number of freeze-thaw cycles the solution is put through, not on the preservative.1
Peptides, which are short amino acid chains, demand careful handling and controlled storage conditions. In most research laboratories, peptides are distributed in a lyophilized (freeze-dried) form that must be dissolved before use. Bacteriostatic water is commonly chosen for this reconstitution due to its sterility and antimicrobial properties.
Preservation of Sample Integrity: Because it is sterile and contains a bacteriostatic agent, this water protects delicate peptide samples from microbial contamination, maintaining their purity throughout experimental use.
Ease of Use: Since bacteriostatic water can be safely used multiple times, it enables researchers to draw several aliquots from one vial — ideal for working with expensive or limited peptide samples.
Short-Term Stability: The inclusion of benzyl alcohol inhibits bacterial growth, extending the usable life of peptide solutions for short-term storage.
Protein studies also require stringent contamination control to ensure experimental reliability. Like peptides, many proteins arrive as powders that must be reconstituted. Bacteriostatic water provides a sterile and stable solvent environment for this purpose.
Manning and colleagues’ 2010 update in Pharmaceutical Research catalogues the chemical and physical instability routes that act on peptides and proteins once they are in solution, and the formulation variables that control them.1
Wang’s 2000 review in International Journal of Pharmaceutics covers lyophilisation and the development of solid peptide and protein preparations, including the role of residual moisture in solid-state stability.2
Maintaining Purity: The bacteriostatic effect of benzyl alcohol helps preserve the cleanliness and integrity of protein samples, even after multiple withdrawals from the same vial.
Experimental Consistency: Using the same sterile solvent across multiple protein preparations improves reproducibility and reduces unwanted microbial variables.
Wide Compatibility: Bacteriostatic water is suitable for use with many proteins. However, researchers should always verify that their specific protein is not sensitive to benzyl alcohol, as it may interfere with certain enzymes or delicate protein structures.
Note: Always assess solvent compatibility during method validation to prevent adverse interactions with sensitive proteins.
Beyond reconstituting peptides and proteins, bacteriostatic water serves several additional laboratory roles:
Sample Dilution: Used for creating precise concentrations in analytical and biological assays.
Buffer and Reagent Preparation: Acts as a clean base for preparing solutions and buffers.
Instrument Maintenance: Provides a sterile rinse for laboratory tools, including pipettes and automated liquid-handling systems.
In automated research environments, bacteriostatic water ensures that reagents remain sterile and uncontaminated over multiple handling cycles, supporting reliable and reproducible experimental outcomes.
Many research compounds require precise dilution ratios and controlled reconstitution conditions. Bacteriostatic water provides a stable environment that supports gradual, uniform mixing without introducing unwanted contaminants. Its production under USP-grade manufacturing standards helps ensure consistency from batch to batch.
The benzyl alcohol content does not merely serve as a labeling feature; it actively inhibits microbial growth within the vial following access. In laboratories where materials may be accessed multiple times over ongoing experiments, this antimicrobial property helps reduce variables related to contamination risk, supporting data reliability and experimental accuracy.
Certain compounds are highly sensitive to environmental changes, including pH fluctuations and microbial exposure. Bacteriostatic water offers a gentler and more stable solution environment, making it a preferred choice for preparing delicate research materials that require careful handling.
Because bacteriostatic water supports multiple withdrawals, it significantly reduces the need for frequent replacement. This efficiency is especially valuable in laboratories managing high research volumes or long-term studies, where budget allocation and material conservation are ongoing considerations.
For laboratory research use only. Products on this website are intended solely for in-vitro research. They are not medicines, have not been evaluated by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease. Any administration to humans or animals is strictly prohibited.
Our peptides are produced exclusively for laboratory and scientific research purposes.
Licensed Peptides™ products are developed using industry-standard synthesis and purification protocols, making them suitable for in vitro research, analytical testing, and experimental models.
Strict process controls ensure reproducibility, allowing researchers to work with confidence across experiments.
Our peptides are commonly used in research involving:
All products are intended for research use only and are not for human or animal consumption, therapeutic use, or clinical application.
At Licensed Peptides™, quality isn’t a claim — it’s a controlled, repeatable process.
Every peptide we produce follows a strict, pharma-grade workflow designed to ensure purity, stability, and consistency from synthesis to delivery.
All peptides are synthesized in sterile, controlled environments to eliminate contamination risk and ensure batch consistency.
We use advanced High-Performance Liquid Chromatography (HPLC) to separate and verify peptide purity with precision.
Each batch undergoes heavy metal and endotoxin screening to ensure it is free from hidden contaminants.
We start with rigorously tested amino acids and reagents, ensuring integrity at the molecular level.
Freeze-dried peptides maintain long-term stability, potency, and reliability for research applications.
Every vial is protected from oxygen and moisture, preserving structural integrity during storage and transit.
From synthesis to delivery, every step is engineered to meet the expectations of professionals who require accuracy, consistency, and reliability.
For laboratory research use only. Not for human or veterinary use.
We understand that timing and product integrity are critical for research.
| Ships to | United States (including minor outlying islands) |
|---|---|
| Processing days | Monday to Friday, excluding holidays |
| Daily cut-off | Paid orders placed before 4:00 PM PST are typically shipped the same business day |
| Free shipping | FedEx 2-Day Express on orders over $200 and for VIP members |
| Standard | USPS Ground Advantage, 3–7 business days (not guaranteed) — $8.95 |
| Expedited | FedEx 2-Day $11.95 · UPS 2-Day $19.95 · FedEx Next Day $44.99 |
| Signature | Required on delivery for orders of $1,000 or more |
Products are stored in industrial-grade freezers prior to shipment to maintain stability and purity.
Each order is carefully packed to protect against temperature fluctuations, moisture exposure, and physical damage during transit.
Once your order has shipped you will receive a tracking number by email, so you can monitor delivery progress.
Orders are dispatched domestically from a U.S.-based operation, so there are no international customs steps.
Shipping times are estimates and begin after order processing. Delays may occur due to carrier issues, weather, or other unforeseen factors, and delivery dates are not guaranteed. Full terms are in our Shipping & Delivery Policy.
For laboratory research use only. Not for human or veterinary use.
| Lyophilized, in transit | Stable for shipping for up to 3–4 months |
|---|---|
| Lyophilized, short term | Room temperature is usually adequate for several weeks; refrigeration under 4°C (39°F) is generally acceptable |
| Lyophilized, long term | Freezer at -80°C (-112°F) for several months to years |
| After reconstitution | Refrigerated; stable for up to 30 days |
| Light and moisture | Keep cold and away from light in the original sealed vial |
All of our products are manufactured using the lyophilization (freeze drying) process, which keeps them stable for shipping for up to 3–4 months.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until it is reconstituted with bacteriostatic water.
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used in the next several days, weeks or months, short-term refrigeration under 4°C (39°F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
For longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80°C (-112°F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
Once the peptides are reconstituted with bacteriostatic water, they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
For laboratory research use only. Not for human or veterinary use.
Guaranteed per batch
Independent lab verified
Vanguard Laboratory · ISO/IEC 17025
USA-manufactured
Free FedEx on $200+
Not all peptide vendors hold themselves to the same verification standards.
| Verification Standard | Licensed Peptides | Generic Vendors |
|---|---|---|
| HPLC Purity Analysis | ||
| Mass Spectrometry Identity | ||
| Endotoxin Screening (LAL) | ||
| GMP-Certified USA Manufacture | ||
| COA Published & Downloadable | ||
| Same-Day USA Fulfillment |
Bac water for peptides is a sterile aqueous solution containing 0.9% benzyl alcohol as a preservative. Researchers commonly use bacteriostatic water in laboratory environments when working with lyophilized compounds and standardized preparation workflows. The preservative system distinguishes bacteriostatic water from sterile water and supports its use in multidose laboratory settings.
All products sold by Licensed Peptides are intended exclusively for research, laboratory, and analytical purposes.
No. Both products are sterile water-based solutions, but bacteriostatic water contains 0.9% benzyl alcohol, while sterile water does not. This preservative system is the primary distinction between the two products. Researchers should always review product specifications and laboratory requirements when selecting materials for a particular workflow.
Benzyl alcohol functions as an antimicrobial preservative. Scientific and pharmaceutical literature has documented its use in multidose preparations for decades. While preservative systems may help inhibit microbial growth under appropriate conditions, proper aseptic handling and storage procedures remain essential components of laboratory quality-control practices.
Many research peptides are supplied in a lyophilized or freeze-dried format to support stability during storage and transportation. Researchers may incorporate bacteriostatic water into laboratory preparation workflows involving these compounds. The specific requirements for any research protocol depend on the compound being evaluated and established laboratory procedures.
Researchers working with compounds such as BPC-157 10mg, TB-500, MOTS-c, and other lyophilized research peptides often prioritize consistency, documentation, and standardized preparation practices across experiments.
Bacteriostatic water should be stored according to the manufacturer’s instructions and applicable laboratory protocols. Researchers commonly maintain storage records, monitor environmental conditions, and follow established contamination-control procedures to help preserve product integrity. Always review product labeling and documentation before storage or use.
Researchers frequently evaluate suppliers based on documentation availability, batch traceability, manufacturing transparency, and quality-control standards. Common considerations include product specifications, supplier verification practices, and traceability records. Documentation can play an important role in supporting reproducibility and maintaining procurement consistency across long-term research projects.
Bacteriostatic water is primarily supplied as a sterile aqueous vehicle for laboratory and analytical applications. Researchers commonly utilize it in workflows involving lyophilized compounds, peptides, proteins, and other materials requiring controlled preparation procedures. Its intended role within a research environment depends on the specific protocol being performed.
Researchers should inspect bacteriostatic water before use. If cloudiness, discoloration, particulate matter, or other signs of contamination are observed, the product should not be used. Product integrity, storage conditions, and handling procedures should be reviewed in accordance with applicable laboratory protocols and manufacturer guidance.
No. Bacteriostatic water is not designed to remove endotoxins, contaminants, or impurities from research compounds. Endotoxin testing and contamination control are separate processes that occur through analytical testing, quality-control procedures, and validated laboratory practices.
Like other laboratory materials, bacteriostatic water is supplied with manufacturer-provided dating and storage recommendations. Researchers should always review product labeling and follow applicable storage guidelines to help maintain product quality and integrity throughout its intended shelf life.
Bacteriostatic water contains 0.9% benzyl alcohol, which distinguishes it from preservative-free sterile water. Because of this preservative system, bacteriostatic water is frequently selected for laboratory environments where repeated vial access may be required as part of established research procedures.
Yes. Licensed Peptides bacteriostatic water is supplied exclusively for laboratory, research, and analytical applications. It is not intended for human consumption, clinical use, therapeutic applications, veterinary use, or diagnostic procedures. Any discussion of laboratory applications refers solely to research environments and scientific workflows.
99.4% HPLC Verified · Endotoxin-Screened · GMP-Certified ·
Free FedEx 2-Day on $200+
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