I think the sensual skin enhancer is considered by many to be the star
of the Kevyn Aucoin range, indeed it seems to have reached a cult status
in the beauty world.

Deeply concentrated and with a rich creamy texture,
it can be used for concealer or sheered out with a moisturiser as a
foundation. The finish is neither dewy nor completely matte, the aim
being for it to replicate a natural skin finish. I know I bought this
from Harvey Nichols when KA was first briefly in the UK, but I think that was
back around 2003 and to be honest I can't remember what my thoughts were
on the product, however I'm sure I didn't get the right shade, so on the
assumption that I would have gone for the lightest colour, this time I
went for shade SX2 (£36).

Its yellow toned, so slightly at odds with my cool tones, however the
lightness is a match for my skin. Unfortunately its a tad too light for under my
eyes.
Swatches L-R: Vapour Illusionist 010, KA SX2, Le Metier De Beaute 01

This gives extremely good coverage and is long lasting. Though due to the creamy texture, its very prone to creasing.
Unfortunately this is not for me. It looks extremely dry on the skin (my skin type is
dry/sensitive and prone to an oily breakthrough on t-zone). If your a
regular reader of my blog you may recall a post when I had to have an
emergency Benefit makeover to re-do my base, and that was due to me
using this concealer as a base on a day when my skin was very dry. Unfortunately even when my skin is in its normal state, this just
looks patchy, dry and sinks into pores.
I can however use this is as an
undereye concealer, whilst the dryness still remains a problem, there is no
denying that the coverage is very good.
Pictured below with no concealer and then with, I've not applied powder
and you can see it has creased.

I can see why this product is loved by many, but I think you need a
certain type of skin/texture for this to work and clearly I don't have
it. So for me, due to the performance of the product its only use
is as an undereye concealer, however the colour is not right and I can't say that I feel the need to put down
another £36 to get the correct match, its good but not that good.
Ingredients:
I bought this from spacenk.com