Not sure how many of you have bought the reformulated Touche Eclat foundation. My PRE-reformulated shade was B40. Originally they insisted that we stick to the same shade. But in the new formula, B40 is too dark, so they recommended B20 - but that was too light. When I tried B30 today I finally realized what the problem was.
Above/ left is the YSL TEC original formula in B40. You can see it looks a bit pink but on me it is more like a neutral shade. Below/ right is the new formula TEC in B30. You can see it leans yellow. So therein lies part of the issue. And you can see it very clearly in the pic. I've deliberately used a heavy swatch for clearer visual reference, and while here, it looks like the original B40 is too pink, it actually looks more neutral on me, and blends properly and nicely on me.
So I still wonder what my correct shade in the new formula is. Anyway, I just tested both foundations on my face, half on each side, then swapping again.
At a quick glance there is no visible difference. However, there are slight ones:
1. The newer one is heavier coverage. You can literally feel it on your face a bit more. Reminds me of a heavier coverage Youth Liberator Foundation rather than a reformulated Touche Eclat.
2. The older one feels more like skin and looks more natural even at a medium coverage.
3. Glowiness and radiance factor is similar.
4. The newer one, being heavier coverage, conceals better so may help the complexion look more even.
5. Newer one does cling on to dry patches more because of its velvety-matte texture. Matte factor is only slight but visible when it clings. It also sinks into pores quite evidently.
I prefer the older formula but if your skin needs more help in terms of uneven skin tone, I'd definitely recommend the newer formula.