At Peptidology, we test our products carefully. More than just checking purity and ingredients.
Here's what we look at:
Purity: Must be at least 99%. We check this using a test called HPLC (High-Performance Liquid Chromatography).
Identity: The product must match exactly what we're selling.
Amount (Assay): The actual amount of the product should not be less than 5% below or more than 15% above the expected amount.
Sterility: Products must have zero germs. To guarantee this, products are filtered carefully during filling and then double-checked by testing after freeze-drying.
Bacterial Endotoxins: These are harmful substances produced by bacteria. We follow strict guidelines (USP 85) to make sure endotoxin levels stay super low—below 0.05 EU/mL. Higher levels (around 0.5 EU/mL or more) could cause serious immune reactions.
Heavy Metals: We're starting to test products for harmful metals like lead, arsenic, mercury, and cadmium. Guidelines currently available might be outdated, so we're exploring newer, better ways to test, such as ICP-MS.
What's ICP-MS? It's a machine that checks for heavy metals by heating samples until they become tiny charged particles. Magnets then separate these particles by weight, letting us measure how much of each metal is present.
Keep checking back or ask us questions anytime!
Note: These testing standards might change as we discover new information, methods, and respond to customer needs and market changes.