If I were stranded on a deserted island...

... and I could only have one beauty product it would be Vaseline (i.e. petroleum jelly).  You can do so much (both for beauty and practical aspects) with Vaseline it is amazing!  It is recognized by the FDA as an over the counter protectant.  However, it does not absorb into the skin.  Therefore, it has no medicinal properties, but it does seal in your skins natural moisturizers and out harmful bacteria, so it accelerates healing.  

You can use Vaseline to;

• remove makeup
• dab some on your eyelashes in place of mascara
• on your lips as a fantastic lip gloss
• on your cuticles to moisturize
• on your elbows and other dry rough patches of skin
• on your nose after too much blowing (not so pretty, but do it at night before bed and no one will see) *only the outside of your nose, use on the inside can result in lipoid pneumonia (rare, but still no reason to increase your risk)
• put it on your wrists prior to spraying with perfume and the scent will last longer
• use it as the base for a scrub
• dab on cheeks as an illuminizer
• create a dye resistant line around your face when applying hair color
•  on the ends of your hair to hide split ends

So hopefully there really is no deserted island in your future, but just in case be sure to throw a travel size jar of Vaseline in your purse!