What it is: Physicians Formula Murumuru Butter Believe It! Putty Primer Prime is an ultra-luxurious, velvety-smooth, putty primer infused with our proprietary Butter Complex to deliver a radiantly soft poreless complexion! Incredibly creamy and buttery texture preps skin and allows makeup to glide on smoothly for all-day wear. Why it's good for you: Infused with a powerful blend of Murumuru Butter, Cupuaçu Butter, and Tucuma Butter from the lush and nutrient-rich Amazon. Packed with essential fatty acids and pro-vitamins that soften, condition, and moisturize skin, leaving it silky soft.