Is there anyone who work as a R&D technician with Estee Lauder's products?

I would like to know what ingredients they use in the discontinued product of Estee Lauder, called Lightsource Moisturizer!|||I don't, but when a product had been discontinued, it's possible it was causing people to get a rash or signs of irritation and had been recalled. Sometimes, they come back with similar product, just a different name.