For research use only
In short This labelling states that a substance is intended for laboratory experiments and not for human consumption. It is a statement of purpose, not a judgement of quality.
Material carrying this label is not a medicine, a food or a cosmetic. It does not go through a marketing authorisation for medicines and accordingly must not be offered as something to be used on people.
For the shop this means in concrete terms that product pages give the substance, sequence length, CAS number, vial size, purity specification and certificates, and nothing about use in humans or animals.
The label says neither that the material is inferior nor that it is especially good. It says that the substance is not placed on the market as a medicine, a food or a cosmetic and is not intended for human consumption.
This purpose determines what a supplier leaves unsaid: no quantities per person, no schedules, no statements about changes in the body, no personal reports. The silence is not a lack of information but the line drawn by the law on the advertising of medicines and on unfair commercial practices.
How UKPeps applies this is set out on the research use page. The contractual rules are in the terms and conditions, and the FAQ answers further questions.