Prep Your Peps?

There was a better one from another creator but the channel got taken down.

Never filtered any of mine and haven't run into problems so far. No burning, no particles, no gelling, and no injection site reactions. The only small mistake was pulling the needle out too quickly on the last injection and losing a few units. Didn't bother adjusting with another shot because the current dose is working well. Using Reta as an example. Those vials went through rough shipping conditions with temperature swings and probably got shaken around. A bit of light exposure probably won't hurt the batch. I keep mine in a 3D-printed 50-vial holder now but used a lockbox before to keep them out of sight. One person on another site just tosses labeled vials into a bucket in the freezer.

Is the basement freezer easy to move? If not, an opaque or black box might be useful in case things need to be relocated quickly. I tend to overthink these things and live in an evacuation zone. Just an idea. Right now I'm using insulated containers found at local discount stores.

Filtering isn't required but can be done if sterility is a concern. A 0.22 micron PES or PVDF filter is common. Every filter retains some liquid and peptide can stick to it, so small volumes lose more product. The fridge and freezer already block light, so a black case is mainly for organization. The main points are keeping powder cold, storing mixed vials in the fridge instead of the freezer, and limiting temperature cycles. Writing the mixing date on each vial prevents most beginner errors.

I will start filtering everything. Recent test results on my latest batch showed contamination. The report listed total aerobic microbial count with viable bacteria and total yeast and mold count with fungi present.

Yes to both questions. Insulated containers with vial inserts are fairly common. Hard cases work too but are often too large for fridge use, so smaller thermally stable options are better there.

I filter and keep reconstituted Reta in a small black four-vial case in the fridge. Powder vials stay in dedicated cases inside a mini freezer running between minus five and minus twelve degrees.

It's Bruce Campbell. He's unstoppable. Haven't you seen the movies? Try Bubba Ho-Tep.

I have a mini freezer just for peptides. Vials go inside insulated containers with custom 3D-printed inserts sized for 3 ml or 10 ml vials. Everything is labeled on the caps and sides. I switched to filtering after reading about it here. Since I was already moving reconstituted material into pen cartridges, adding the filter step was straightforward.

I didn't filter at first until I got an injection site reaction that lasted over two weeks. It had to be drained a couple times but healed without a scar. Sterility testing wasn't something I thought about back then. Later I got a sinus infection after using a nasal spray version of one compound. Now I filter everything as part of the mixing process. It adds only a few minutes.