The phrase "complement the mainstream" is grammatically correct and can be used in written English.
It means to enhance or add to something that is widely accepted or commonly practiced. Example: The new art exhibit aims to complement the mainstream trends in contemporary art by showcasing alternative and emerging artists.
One-third of the exhibition space is reserved for special exhibitions presented to complement the permanent collection thus following the mainstream model of displaying temporary exhibitions to attract visitors.
But the Socialcam team thinks that the release today brings it closer to a video creation tool for the mainstream, as it complements the ability to take videos with custom filters with themes and soundtracks, all in one app, making it into a mobile, filter-improved YouTube.
As these manifestations of acne are also the most common side effects of the mainstream treatments, FAC could eventually complement their use, possibly reducing their adverse reactions and thus increasing patient compliance and overall therapeutic efficacy.
Admission should be granted to those who are most likely to be net contributors to our economy, complement our existing labor force and successfully assimilate into the mainstream of American society.
Results show that the visual nature of the P-graph methodology is an advantage for practical engineering decision-making, and that it complements the learning of mainstream techniques such as mathematical programming.
An alternative or complement to mainstream supply chains would be the distribution of local ecotypes by smaller nurseries specializing in native plants.
Over the past century, advancements within the mainstream dairy foods processing industry have acted in complement with other dairy-affiliated industries to produce a human food that has few rivals with regard to safety, nutrition, and sustainability.
It has no apparent intention of getting into the mainstream printer business, but will instead focus on printers that complement its consumer electronics products.
By their early date and independence of the mainstream historical tradition these txts offer the modern historian of Islam an invaluable complement to the well-known literary sources.
The mainstream press was tamed.
