I emailed Solaray to ask if their Astaxanthin (1mg, 2mg or 4mg) is Gluten Free.
They responded telling me to call their "Nutritional Products Helpline" (800) 227-6063. They wrote... "please note that we cannot respond to your inquiry unless you call".
So I called their Helpline... talked to "Sue"... and was informed "that product is NOT certified Gluten Free".
Not sure why they couldn't just say this in an email, but... good to know!