Hi babydoll,
I managed to locate another supplier on SaleHoo for Egyptian Magic, but the price they offer is pretty much the same as the one you found on DH Gate -
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You have to remember that DH Gate suppliers are based in China, so the authenticity of the product is (definitely) in question when you buy through them.
I found their official site - Link hidden: Login to view and they are currently selling the 4oz jar for $37.20 note that they have authorized distributors and retailers so it might be best to source through those authorized by them to distribute their products.
I did find other suppliers who claim to be official wholesalers but there is no way to verify their claim as we have not had any previous experience with them -
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So if you do pursue any of the 2 suppliers above I suggest exercising caution. Get to know your supplier first, exchange emails or phone calls and make sure you pay using safe payment methods.
Hope this helps, all the best!