P21 10mg is available as a single research vial or a sealed kit containing ten separate 10mg vials. One kit therefore contains a nominal total of 100mg across ten containers. The single-vial and sealed-kit inventories are tracked separately: kits are not opened to supply single-vial orders. Select the pack size before adding the product to the cart. The vial image identifies the individual 10mg container; the option text identifies how many containers are supplied.
The short catalogue name P21 needs care when matching research literature. A name alone does not establish an amino-acid sequence, terminal modification or molecular identity. Published neuroscience papers use the designation P021 for a specific neurotrophic research compound associated with CNTF-derived peptide work. This page does not assume that the supplied P21 material is identical to that compound. Supplier identity documentation must establish that connection before P021 mechanisms or experimental outcomes can be attributed to this listing.
The linked 2017 P021 paper investigated dendritic, synaptic and cognitive measurements in an experimental mouse model. It is included as related-name research context, not as evidence that SRP P21 produces those effects. Differences between a named commercial material and the actual compound used in a paper can change the interpretation completely. The SRP research card explains this identity question instead of drawing a receptor pathway that has not been verified for the supplied product.
The same identity and documentation requirements apply to both pack sizes. Buying a kit changes the number of vials, not the scientific evidence, quality status or intended use. A future batch report should connect the supplier designation to the exact tested material and the lot on the supplied packaging. Until that review is available, sequence-specific claims, verified purity and therapeutic benefits are not asserted. The brain motif is a research-theme illustration and should not be read as a demonstration of cognitive improvement.
Documentation status: The COA review, chromatography, mass-spectrometry and traceability images are educational examples, not results for this product. No purity percentage is certified by these graphics. For laboratory research use only; not for human or veterinary use, diagnosis or treatment.
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