I was handed a sample of this serum with another purchase, and being curious, I swapped my normal Estee Lauder advanced night repair II serum for this when I got home. What first struck (and repelled...

I was handed a sample of this serum with another purchase, and being curious, I swapped my normal Estee Lauder advanced night repair II serum for this when I got home. What first struck (and repelled...