What is the amount of delta in yours? Why delta, rather than gamma?Look up ADM products as they have it in bulk. There's a specific thread on here somewhere, but you can always ask for samples (say you're a business) from them. The one they sent us was a pretty good size. We asked for their vitamin e product that had the highest delta. You can get the different ones if desired as they're nice about getting them out to you.
I just came across this brand: Thyro-Protect Vitamin E Complex
Not sure how it compares to ratio of your brand.