Bacteriostatic Water vs IGF-1 LR3
Bacteriostatic Water and IGF-1 LR3 are both studied in longevity research, but they are different classes of compound with different reported research applications.
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Last updated August 25, 2026
How do Bacteriostatic Water and IGF-1 LR3 differ?
Bacteriostatic Water (Sterile preserved laboratory diluent) is catalogued under longevity & cellular research; IGF-1 LR3 (Recombinant IGF-1 analog polypeptide) is catalogued under longevity & cellular research. Verve lists 5 reported research applications for Bacteriostatic Water and 5 for IGF-1 LR3. Both are made in the United States, screened by HPLC to a 99%+ purity standard, and shipped with a batch-level certificate of analysis.
| field | Bacteriostatic Water | IGF-1 LR3 |
|---|---|---|
| compound class | Sterile preserved laboratory diluent | Recombinant IGF-1 analog polypeptide |
| research area | longevity & cellular | longevity & cellular |
| reported research applications | 5 listed | 5 listed |
| supplied as | single compound | single compound |
| catalog sizes | 10ml | 1mg · 2x 1mg |
| purity standard | 99%+ by HPLC | 99%+ by HPLC |
| manufactured | United States | United States |
| batch COA | published per lot | published per lot |
| endotoxin-tested option | not offered | available |
| co-formulated together in | not co-formulated | not co-formulated |
| price from | $28.49 | $93.49 |
| availability | in stock | out of stock |
Prices and stock read live from the catalog. Both compounds are supplied strictly as reference materials for in-vitro laboratory research.
What is Bacteriostatic Water and what is IGF-1 LR3?
Bacteriostatic Water is classified as Sterile preserved laboratory diluent; IGF-1 LR3 as Recombinant IGF-1 analog polypeptide. Both profiles below cover scientific identity only — what the molecule is and which laboratory models it appears in. Verve supplies both strictly as in-vitro reference materials, and neither profile describes human or veterinary use.
Bacteriostatic Water
Sterile preserved laboratory diluent
Bacteriostatic water is not a peptide but a laboratory reagent: sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative. The benzyl alcohol inhibits the growth of common contaminating organisms, which allows a sealed vial to be accessed more than once over the course of a study without the reagent itself becoming a source of microbial contamination.
full Bacteriostatic Water profile →IGF-1 LR3
Recombinant IGF-1 analog polypeptide
IGF-1 LR3 is Long R3 insulin-like growth factor 1, a recombinant analog of human IGF-1 carrying an arginine substitution at position 3 and a 13-residue N-terminal extension. Those two modifications are what define it: they substantially reduce its affinity for the insulin-like growth factor binding proteins (IGFBPs) that sequester native IGF-1 in culture systems.
full IGF-1 LR3 profile →Which research models is each compound studied in?
Bacteriostatic Water and IGF-1 LR3 both sit inside longevity & cellular research, so their listed models share framing while differing in specifics. The table lists 5 reported research applications for Bacteriostatic Water and 5 for IGF-1 LR3. Rows are per compound, not equivalences.
| Bacteriostatic Water — reported research applications | IGF-1 LR3 — reported research applications |
|---|---|
| Reconstitution of lyophilized research compounds | IGF-1 receptor binding and signal-transduction research |
| Preparation of stock and working dilutions in the laboratory | PI3K/Akt and MAPK pathway research in cellular models |
| Multi-access vial workflows requiring a preserved diluent | Cell-culture media supplementation for proliferation research |
| Solvent control and vehicle conditions in research protocols | IGFBP interaction and free-ligand availability studies |
| Peptide-solubility and stability studies | Comparative analog research against native IGF-1 |
Research contexts only. Both compounds are supplied for laboratory research use only, and no entry above describes an effect in humans or animals.
What sizes and prices does verve list for Bacteriostatic Water and IGF-1 LR3?
Bacteriostatic Water is listed from $28.49 and IGF-1 LR3 from $93.49. The table below is every catalog size verve currently lists for the two compounds, at single-vial prices before the automatic multi-compound discount. Sizes describe the vial format supplied to the laboratory, nothing more.
| compound | size listed | price | availability |
|---|---|---|---|
| Bacteriostatic Water | 10ml | $28.49 | in stock |
| IGF-1 LR3 | 1mg | $93.49 | out of stock |
| IGF-1 LR3 | 2x 1mg | $171.49 | out of stock |
Any 2 different compounds take 20% off, any 3 take 30% — applied automatically in the cart, no code. Orders placed Monday–Friday ship by 2pm CT, free over $100.
shop the compounds →Frequently asked questions about Bacteriostatic Water and IGF-1 LR3
What is bacteriostatic water?
It is sterile water containing 0.9% benzyl alcohol as a bacteriostatic preservative. Verve supplies it as a laboratory reagent for research use only, not for human or veterinary use.
What is it used for in research?
It is used as a diluent for reconstituting lyophilized research compounds and for preparing working dilutions from stock solutions in a laboratory setting.
What is IGF-1 LR3?
IGF-1 LR3 is Long R3 insulin-like growth factor 1, a recombinant analog of human IGF-1 with an arginine substitution at position 3 and an N-terminal extension. Verve supplies it as a research compound for laboratory use only, not for human or veterinary use.
How does IGF-1 LR3 differ from native IGF-1?
Its structural modifications reduce affinity for IGF binding proteins, so more of the ligand remains unbound in culture systems. Researchers use that property to control free-ligand availability in in-vitro models.
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verve products are sold for laboratory research and development purposes only and are not intended for human or veterinary use of any kind. statements on this site have not been evaluated by the FDA.