Prior to embarking on a 10 Day Challenge with SKII products, I visited the SKII counter over at Takashimaya for a skin analysis.
The 5 main concerns that SKII focuses on are - Texture refinement, firmness power, wrinkle resilience, spot control and radiance enhancement.
And if you were to ask me, I would say that my main concern would be radiance enhancement followed by firmness power.