3 Secrets expert makeup artists use to know if your foundation will last

2. Ingredients Matter! If I asked you if your skin care was a silicone base or a water base...would you know? Do you know what to look for?  Seeing Aqua as the first ingredient on your ingredient list does not mean that it is necessarily a water based skin care product/moisturizer.  Look at the following ingredients...does it have any ingredients in the next 5 or 6 on the list that end in -cone?  This is a silicone based product.  What that means is if you are using a foundation that is water based, but a moisturizer prior to it that is silicone based, you will find that those two things do not mix well when used in that order.  This will cause the foundation to separate and may not lay very nice on the skin and therefore also rub off because silicone is slippy. The safest bet when using a water based foundation is to use a water based moisturizer.  Now, if you have a silicone foundation (same thing, check your ingredients), and you used a water based moisturizer, you should be good to go as long as you let that moisturizer sink into your skin before applying your foundation.  For longest lasting foundation, use a silicone based product like the Marla Austin Cashmere Foundation.