Sisley Hair Products - Advice please

[whatwouldlouisaguydo]

I'm interested in trying Sisley products for my fine flyaway highlighted hair. They are so expensive that I really can't afford to make a mistake and wondered if any regular users of Sisley could advise what's worth investing in?
I have a shortish bob that's trimmed and highlighted every eight weeks, not bad condition but still tends towards being dry and flyaway. Thanks 😊

I’ve never tried them but could you maybe buy travel size? I’ve made lots of mistakes with hair products (and make up!) so now I like to buy travel size to see what they are like before committing.

That's a fab idea @Girlintheframe thank you.
I did look at their advent calendar and it's over £500!!