Made an interesting discovery the other day while trying to find an unscented hair spray. 'Unscented' is a misnomer. Products still have a smell. In fact, unscented can have more perfume and fragrances added than something that is scented.
There are apparently no regulations of what constitutes unscented and fragrance free. As with most of our health and beauty products, manufacturers have a free hand to do what they want. I have linked Unscented and Fragrance Free below to the explanations on Consumer Reports.
UNSCENTED = combination of fragrances to create a neutral smell. Think of air fresheners, particularly Neutrair. It doesn't smell like flowers, but puts out a bland smell that is supposed to make odors inoffensive. It uses a combination of different fragrances to create the blandness. Same for beauty products. If you look at the label, you will see: fragrance, perfume, parfum.
FRAGRANCE FREE = shouldn't have any type of added fragrance. There shouldn't be any fragrance listed on the label.
As with any labels, these are guidelines. Remember to READ before buying.