I have been using Purity Purifying Foam Cleanser for as long as I can...

I have been using Purity Purifying Foam Cleanser for as long as I can remember and have always loved it until last year. The consistency has always been foamy when pumped into palms and cleanses the face very well. The last 3 bottles were really bad, that I thought they must be expired. It would be great for beauty products such as these to have expiry dates shown on the products (compulsory in fact) as important information for customers. I'm highly dissatisfied with the current quality of this product.