Vaseline Blue Seal brand petroleum jelly is a standard and antiquated brand of pure petrolatum. It's found in nearly every grocery store or pharmacy throughout the United States and is trustworthy against scrapes, burns and protection against wind and other chapping elements. It does have an expiration date, which can be found on the jar.
Flip the jar of Blue Seal Vaseline over, revealing the underside.
Search for the stamped-on date on the bottom of the jar.
Tilt the jar away from you a little to look at the outer sides of the bottom of the jar. The date will be stamped there if it isn't on the very bottom of the underside of the jar.