White Lucency Brightening Serum for Neck and Decolletage

I got a sample bottle of this serum, which is for the neck and décolletage areas. My skin turned red in a matter of seconds. Because I had a bad reaction, I washed it off immediately. Thumbs down.

The full price for this here in Switzerland is 125. Franks. Very pricey. I found it was on sale for 50%. Also, with the purchase of one, the sales lady offered me another one for FREE. I could not...