We refer to your e-mail, regarding the above products.
We would advise that before November 2008, it was not a requirement for an expiry date to be detailed on our products. However we would confirm that as long as the product has not been stored in direct sunlight or in very high temperatures, then the lifespan is indefinite
Since November 2008, as part of new regulations, an expiry date must now printed on the bottle, but the formulation has not changed.
there you go!