Does it have a fishy aftertaste?

Only if it is shipped in the peak of summer heat. Here, it's been in the 90s with high humidity since July. I have a bottle that is so fishy the smell hits you when you open the bottle and the softgels have orange spots. I take these daily and I can feel the difference since I haven't been able to take these fishy ones. No substitutes. This one has the best formula and ingredients I have seen.

What chemical in this product triggers the warning of the State of California Prop 65?

I have since stopped taking this. The larger dose of fish oil can cause bleeding.

Hi Amazon Customer, The expiration date on this Lot is April 2018 . We sell a fair amount of this formula, so our stock is always fresh. Our Standard Shipping (as posted) is 1-3 days through USPS Priority Mail. Check out our Amazon Storefront regularly as we are adding new products every week out of the 10,000 skus we currently stock in our physical retail store in North Wales, PA. Let us know if you have any other questions? We hope this note finds you well.Regards,Holly Hill Health FoodsCustomer Service

Is this product gluten free? The bottle says it contains soy.

I'm not sure about gluten content, but this supplement helped my arthritic feet & hands SO much! I went from waking up with feet stiff as a board to feeling normal. It's little expensive, but worth it.