Guides

A plain-English guide to how terminal modifications, disulfide bridges, rings and counter-ions are written, and how each changes a peptide’s formula and mass.

What a peptide sequence, molecular formula, molecular weight and CAS or PubChem ID mean, with worked examples.

For laboratory research use only. Not for human consumption. Good storage and handling depend on the right basic kit. Here’s a practical checklist. Cold storage A lab fridge (2–8 °C) for material on arrival, short-term storage, and material once reconstituted. A lab freezer (around −20 °C) for longer-term storage of lyophilised material before reconstitution, ideally…

For laboratory research use only. Not for human consumption. What lyophilisation is Lyophilisation (freeze-drying) removes water from a frozen material under vacuum, leaving a dry powder or ‘cake’. It’s widely used in labs to make sensitive materials more stable for storage and transport. Why the dry state is more stable Many degradation reactions need water….

For laboratory research use only. Not for human consumption. Here’s how OWSA Labs orders reach you, and what to do when they arrive. Dispatch Order by 2:00pm UK time on a business day (Monday–Friday) for same-day dispatch. Orders placed after 2pm, at weekends or on UK bank holidays ship the next business day. Delivery Packaging…

For laboratory research use only. Not for human consumption. You’ll see ‘Research Use Only’ (RUO) on many lab materials, including everything sold by OWSA Labs. Here’s what it means, in plain English. The definition An RUO material is supplied for laboratory research: in vitro work, analytical method development and similar non-clinical studies. It isn’t a…

For laboratory research use only. Not for human consumption. Lyophilised (freeze-dried) materials are stable in many ways and fragile in others. Good storage and handling protect the integrity of your research. This guide from OWSA Labs covers the basics. 1. Temperature 2. Light and moisture 3. Lyophilised vs in solution In the dry state, material…

Educational overview for laboratory research contexts only. Not medical advice. OWSA Labs products are for laboratory research use only — not for human consumption. No dosing, administration, or personal-use guidance is provided. NAD+ (nicotinamide adenine dinucleotide) is a central redox cofactor in cellular metabolism. Research interest covers mitochondrial biology, sirtuin-related pathways, and analytical standards for…

Educational overview for laboratory research contexts only. Not medical advice. OWSA Labs products are for laboratory research use only — not for human consumption. No dosing, administration, or personal-use guidance is provided. GHK-Cu is the copper(II) complex of glycyl-L-histidyl-L-lysine. It is discussed in dermatological and tissue-remodelling literature, but research supply is a laboratory reagent, not…