This is a question that has been at the back of my mind for a while.
Helianthus Annuus (Sunflower) Seedcake is an ingredient that is commonly used in Estee Lauder brands (Clinique, Estee Lauder, MAC, La Mer, etc).
Seems like it is the , similar ingredients using "seedcakes" like and are multi functional with antioxidant/chelating/emollient properties.
Why is it so commonly used in this brand(it's in almost every Clinique moisturizer)? Is it a proprietary ingredient that has special processing and efficacy data?
My personal hypothesis is that Sunflower Seedcake is a relatively cheap source of antioxidants and vitamin E because Sunflower seeds are . It's also interesting that Clinique, Estee Lauder and La Mer almost never use tocopherol as an ingredient but sunflower seedcake is almost always used. Do you think it's a way to make the ingredients list seem more interesting while adding vitamin E to the formula?
What are your thoughts on this ingredient?