Sentence:  Then I implemented a lighter protein conditioner – such as hair <WSD>mayonnaise</WSD>, which I learned about from my cousin Renee – for the off weeks. I used this hidden gem in combination with olive oil (yes, I bought a kitchen bottle of olive oil – the same kind my grandmother used in every single delicious dish she ever cooked – strictly for use in my hair). 
Meaning of the word marked with <WSD> tags:  Any cold dish with that dressing as an ingredient.