If I interpret the question literally, it could say: Which groups are tested, and which are not? i.e. which undergo a consumer test to see whether consumers like it?
Here I can certainly say, everything is tested with consumers. Every article you could think of, Food, Non-Food, Durables, and even Services. Either in a central location, or in consumer' homes.
There is no limit, but of course ethical, hygiene and quality standards are to be adhered.
I guess I got confused on the "ask a question" part of the application I was applying for. I was under the impression my question should directly correlate between the topic. I asked what products would be tested because the description was vague and just mentioned it being a beauty company. Disregard this question, please, I was not intending to ask a general question.
Josef is correct, testing requirements cary widely among product categories and regulatory oversight that may or may not be required... UL is probably about the lowest level of testing, a week or two of simple activities generally required for consumer electronics and similar, but a medical device will require FDA approval that can take years. The product itself and its requirements are also central... Is it a durable item designed to withstand use in harsh environments? If so drop tests, water and dust ingress etc. may be necessary. Is it a toy? then tests to ensure compliance with safety regulations particular to playthings will have to be passed before taking it to market. In short, it's totally dependent on the particular circumstances of the product, and the costs / time required can run from minimal to hundreds to thousands of dollars (for medical devices.)
Please could you elaborate your question. As far as testing is concerned, anything and everything meant for consumers are tested.
Pharmaceutical products are meant to be tested as per the regulatory guidelines following the various monographs like USP, BP, Ph. EUR, JP, IP, etc. These products are also meant to be tested for their stability to determine the shelf life of the products. In order to maintain the quality of the product and considering the safety and efficacy to patients, these products are tested at each stage; i.e raw materials, intermediate, finished products, packed products and stability samples.