A second-hand item is a product that has already been owned or used by others.
[adjective]
A second-hand item is a product that has already been owned or used by others. It can be resold or given as a gift to someone else to extend the life of the product. Among the benefits of buying second-hand is finding unique items, saving costs, helping the environment and preserving natural resources.
e.g. A second-hand garment can be a unique piece for one’s closet.
From ECONYL® Blog
Greenwashing
Greenwashing describes the practice of making misleading or exaggerated claims about the environmental benefits of a product, service, or company.
Upcycling is the process of transforming waste materials, by-products, or unwanted products into new items of higher value, quality, or environmental benefit.