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Pure Lab Peptides

Cell Migration Assays: Scratch, Transwell and 3D Models

Cell Migration Models in Peptide Research article image from Pure Lab Peptides

A cell migration assay must match the movement question. Scratch assays measure net gap closure, transwells measure passage through a membrane, and matrix barriers add invasion-related constraints. Control for cell number, division, survival and starting geometry before attributing a difference to movement.

GHRP-2 Research: Receptor Context and Release Assays

GHRP-2 research graphic showing receptor and pathway context for RUO laboratory research

GHRP-2 research includes receptor and hormone-release experiments. Two pituitary-cell studies reported contrasting antagonist findings, so species and preparation belong beside the conclusion. Secretion, signaling and binding results should not be merged into an unrestricted potency or benefit claim.

Amino Acid Abbreviations: Codes and Sequence Examples

Amino Acid Abbreviations in Peptide Research infographic for RUO laboratory context

Amino acid abbreviations encode residues in a defined order. GHK means Gly-His-Lys. The letter D in a sequence means aspartic acid, while the prefix in D-Phe describes stereochemistry. Preserve modifications and ambiguity labels when transcribing a sequence.

Third-Party Peptide Testing: What the Report Establishes

Third-party peptide testing infographic showing COA, chromatogram, and mass spectrum documentation

Third-party peptide testing is work performed by an external laboratory on a submitted sample. Its value comes from the sample match, suitable methods and readable results. Independence alone does not establish every property or describe every future batch.

Peptide Purity Testing: HPLC, Identity and Vial Content

Peptide purity testing article image from Pure Lab Peptides with COA and HPLC review graphics

Peptide purity testing gives several different answers. HPLC area purity describes detected peaks; identity testing examines what the material is; a content assay measures how much is present. Read the method and reporting basis before comparing percentages.