YES you can.  Elektra Magnesium products have been used for years after the Best Before date with the same efficacy if unopened and stored appropriately.  EXPIRY, USE-BY AND BEST-BEFORE DATE SYSTEM IN AUSTRALIA TARGETS MAINLY FOOD STANDARDS. 1)  With foods that have ‘expiry’ or ‘use by’ dates,  you can’t sell it after this date because the risk is that the spoiled food can make people sick. 2) When it comes to skin care products it’s a more arbitrary system whereby manufacturers just apply as common practice a ‘best before’ date 3 years from manufacture, without individual product testing to work out exactly what the shelf life is of that product. 3)  It is not illegal to sell products after the ‘best before’ date:  https://lawpath.com.au/blog/whats-the-difference-between-an-expiry-date-and-a-best-before-date 4)  Some products, like salt products or tinned products that have a much longer established shelf life do not need a best before or expiry date at all, but just the batch to identify the date of production. 5)  Elektra Magnesium products have been used for years after the Best Before date with the same efficacy if unopened and stored appropriately.  There may be a difference in fragrance as the essential oils weaken over time. 6)  We have chosen to use any leftover products that are after the Best Before dates for promotions and gift giveaways, however they can still be sold by retailers and clinicians.