Gourmand Hair Perfume Duo

I got the gourmand milky mocha set and sticky toffee set. The lip oils are lovely, but the hair perfumes are amazing. The milky mocha is a creamy coffee scent, but the sticky toffee is this lovely rich spiced scent. Id love to be able to get them in a 50 or 100ml bottle. I've seen a few reviews about how long they last and for me, I'd spray them and get the initial strong scent, and then also felt like it disappeared a bit (but I think it's just a bit of nose blindness). However an hour to several hours later I could smell the fragrance in my hair. The loss of a star is due to longevity being only a few hours and the size of the perfumes being only available in a small size.