Plein air review:
I ordered the balm in shade 40, following the description on the Hermes website. I have neutral skin towards the medium colour range with golden undertones. I use Chantecaille real skin foundation in Vanilla and Hourglass stick foundation in natural as a reference. It looked light in the tube but applied nicely and didn't look chalky like some of the You Tube reviews have said. It didn't feel like a BB cream, more like a top end tinted moisturiser like Chantecaille. It was buildable with more applied. it didn't go matt and flat on my skin, ( mine is slightly dry but dehydrated, so hard find suitable products for). On its own, I would describe as an apply and go tinted moisturiser. With a second application it was more like the Chantecaille real skin. Looked natural and like my skin but better.
The matt white power applied nicely and gave a more 'made up' polished look and did give a soft blur effect to my skin. The two together made my face look more made up, but still not a heavy foundation look. Powder was silky and so far hasn't dried my skin out or made it flake (hourglass stick can do that to me if I add too much and put too much powder on).
I then added a light dusting of the highlighter more as an illuminating power ( think the various face powders Hourglass do), and a bit more in areas I wanted to highlight. This gave my skin a soft golden glow and would be good for 'event' or evening make up. As its golden based it did suit my skin well.It wasn't as high lighting as other brands high lighters, so I will use it multi purpose.
I intended and indeed will use the two powders together to add a bit of matt finish where needed and some glow and defusing light on my skin.
If you can get a shade of balm to match your skin tone its worth a try as a tinted moisteriser/light foundation. The white powder is good for matifying and blurring and giving a more polished made up look. The high lighter is good if you want an Hourglass defused light type alternative finishing power with golden undertones or a subtle but buildable highlighter.