Research design · 14 September 2026
How long does a reconstituted peptide last?
There is no single answer, and a supplier who gives one is guessing. What sets the limit for your peptide, and how to decide a working window.
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Research design · 11 September 2026
Why GLP-1 class peptides dissolve slowly, and how to reconstitute them
The fatty-acid chain that extends half-life also makes these peptides slow to dissolve. Why that happens, and how to reconstitute without forcing it.
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Research design · 11 September 2026
TFA salt vs acetate salt: which counter-ion your peptide carries and when it matters
Nearly every research peptide arrives as a TFA salt because TFA cuts the chain off the resin. When the counter-ion matters, and when it does not.
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Research design · 11 September 2026
Peptide blends vs single compounds: which fits the study design?
A blend means fewer vials and a fixed ratio you cannot change. When that trade is right for a study design, and when separate vials win.
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Research design · 11 September 2026
NAD+ on the bench: why it ships as a 500 mg vial and how long it lasts in solution
NAD+ is the one compound here that is not a peptide. Why it ships as a 500 mg vial, how fast it degrades in solution, and what sets that rate.
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Research design · 11 September 2026
Ipamorelin vs CJC-1295 vs PEP-TSM-G: three growth hormone axis compounds compared
Three growth hormone axis compounds, two different receptors. Which receptor each one hits, how long each lasts, and what that means for a design.
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Research design · 11 September 2026
CJC-1295 with DAC vs without DAC: what the name means and how to tell which you have
Two different molecules are sold as CJC-1295. What DAC actually is, how the masses differ, and how to tell from a certificate which one you have.
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Research design · 11 September 2026
Bacteriostatic water and benzyl alcohol: when the preservative gets into your cell work
Bacteriostatic water carries 0.9% benzyl alcohol. Why that preservative matters in cell work, and at what dilution it stops mattering.
Read the post →Guides, not just posts
The blog covers buying, handling and research-design questions as they come up. The evergreen material lives in the guides: reading a certificate of analysis, storage and stability, one research guide per compound and the glossary.
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New posts publish to the RSS feed. Every post is written for laboratory research use only and links to the lot certificate for any product it mentions.