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Smell is a powerful sense that can evoke memories and spark emotional connections. And it's increasingly big business.

In this programme, we lift the lid on the multi-billion dollar fragrance industry; finding out how scent can influence customer behaviour, build teams, and even help to sell houses.

We hear from a perfume-maker who crowdsources some of the world's most expensive fragrance ingredients, and visit a 15 million dollar house on the market in London, to find out how the right aroma in a property can entice a potential buyer.

And we hear why a major drinks brand has created a fragrance for its company headquarters.

(Picture: A woman smelling perfume. Credit: Getty Images)

Presented and produced by Elizabeth Hotson