TressVita — Precision research materials
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Research essentials,
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A clearer decision.
Good research begins with the right questions. Ask about the active lot, review the available analytical records, and confirm the details before proceeding.
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Request the certificate of analysis for the specific lot under consideration.
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Review identity, purity, and the analytical methods reported in that lot’s documentation.
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Listed prices can be ordered directly by buyers 21 and older for laboratory research use. For anything else, build one inquiry across the catalog, then our team will review research-use eligibility and current availability before any next step.
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Add the research materials and quantities you want to discuss, then submit one consolidated request.
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Research reagents supplied as lyophilised powder in sealed amber vials. All items are for laboratory use only and are not drugs, foods, cosmetics, or medical devices.
Details before decisions. Open any vial for product information, or ask our team about lot documentation.
Substance reference.
Physicochemical and handling data for the compounds in our catalog, with FDA Substance Registration System identifiers. Reconstitution figures describe preparing solutions for laboratory work.
Handling & storage.
Lyophilised: stable at ambient temperature for short transit; refrigerate at 4 °C for up to twelve months, or store at −20 °C for longer holds.
In solution: refrigerate at 4 °C. Do not freeze reconstituted material — freeze–thaw cycling degrades peptides. Protect all vials from light and moisture.
- Use sterile bacteriostatic water (0.9% benzyl alcohol) as the diluent.
- Vent the vial with ~1 mL of air to relieve negative pressure.
- Introduce diluent slowly down the vial wall to limit foaming.
- Allow the solid to dissolve undisturbed. Do not shake — agitation denatures peptides.
- Record the reconstitution date on the vial.
Some peptides normally present as cloudy, viscous, or gelled once in solution. Roll gently to redisperse; discard on particulates, discoloration, or odour.
Each substance entry lists vial mass, diluent volume and the resulting concentration in mg/mL.
Concentration is vial mass divided by diluent volume. Change the diluent volume and the concentration changes with it.
Confirm vial strength and fill volume against the label and the lot's certificate of analysis before preparing a solution.
Testing you can trace.
Every lot is assayed before release. Identity is confirmed by mass spectrometry against the expected molecular weight; purity is determined by reversed-phase HPLC with UV detection. Water content, acetate content, and endotoxin are reported where the method applies.
Certificates of analysis are keyed to the lot number printed on each vial and are available on request before or after purchase. If a lot's COA does not match what you received, contact us and we will replace it.
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For product, documentation, order, or laboratory inquiries. Please do not include medical or personal-use questions.
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