If you google expiration dates you may be pleasantly surprised as to "actual" strength dissipation. It may even save you a lot of money over the coming years. 

Schiff MegaRed EXTRA STRENGTH- Omega-3 Krill Oil 100% Pure Antarctic 500 mg 90 Softgels No fishy after taste!!

Brand New Factory Sealed
Exp: 05/2018
One package of 90 pills. MegaRed Extra Strength gels - Schiff Mega-Red Extra Strength features 100% pure omega-3 krill oil in every soft-gel to help promote heart health. All you need is one soft gel per day to receive 500 mg of krill oil, with no fishy odor or aftertaste.
Expiration date 5/2018
WONDERFUL PRODUCT!!!

Product Identifiers
ModelMega-Red Extra Strength Omega-3 Krill Oil
UPC 020525952523
020525952523

Key Features
Supplement TypeNutritional Supplement
CategoryHeart Health
Product TypeGels