TPS Journal

What this is

Plain explanations of the compounds we sell and the formats they come in: what separates one from another, what a pen changes, and how to handle it once it arrives. Written to answer the question before you buy, not to sell you something you did not come for.

The bias here is deliberate: comparison, format and handling rather than dosing protocols. What a unit on a dial actually measures, why a 100iu pen is not simply a bigger 30iu pen, why freezing ruins a peptide when heat usually only degrades it. That is the part people get wrong, and it is the part that costs money.

Every guide links to the products it covers, and every product links back to the guides that explain it.