Welcome to Mr. Based's Peptide University

Unmixed peptide powder does not require freezing. It can remain stable for years, even decades, as long as it is stored in a cool, dark place, away from UV light and extreme temperature fluctuations.

Bacteriostatic water should be kept in a cool, dark place at room temperature. Do not refrigerate BAC water. Refrigeration can cause condensation buildup inside the vial, which introduces moisture and is highly detrimental to the sterility of the water.

Once you have reconstituted (mixed) your peptide powder with Bacteriostatic Water, the vial must be stored in the refrigerator to slow down the degradation of the amino acid chain.

Bacteriostatic water (BAC water) is sterile water that contains 0.9% benzyl alcohol. This alcohol acts as a preservative to prevent bacterial growth. It is strictly required for reconstituting lyophilized peptides so they remain safe for multiple draws over time.

U-100 simply means there are 100 "units" of active substance per 1 milliliter (mL) of liquid. All of the standard insulin syringes used in our calculators (0.3mL, 0.5mL, and 1.0mL) are U-100.

Official manufacturer guidelines for BAC water state it loses its antibacterial properties 28-30 days after the stopper is first punctured. However, many in the research community find that by using strict sterile protocols (always wiping the vial stopper with an alcohol swab and using a brand new, sterile needle for every draw), the risk of bacterial contamination is drastically reduced.

Yes! While these free calculators provide the mathematical foundation, precise protocol design depends on your unique goals and physiology. Join Mr. Based's Patreon for exclusive 1-on-1 guidance, advanced stacking guides, vetted vendor sources, and our private community.