The term "combination of chemicals" refers to a mixture or blend of two or more different substances that interact with each other in some way. Full definition
While medicines can heal many conditions, they are made up of combinations of chemicals made in a laboratory that our bodies have never encountered. (nutriciaconsulting.com)
They'll also study combinations of chemicals from multiple products based on actual consumer usage, rather than looking at products in isolation. (sciencedaily.com)
The human body (and any animal body, plant body, bacterial body, etc.) is nothing more than a precise combination of chemical reactions. (religion.blogs.cnn.com)