
Biotene, Vegan Vitamin C w/ Elderberry, 500 mg, 90 Tabs
Cost per serving
$0.09
Cheap·−77%Currently from $0.093 per serving across our tracked stores. Same molecule, dramatically different per-dose pricing — sorted bottom-up.
Prices checked Jun 24, 2026
See also: best Elderberry deals · Elderberry basics

Cost per serving
$0.09
Cheap·−77%
Cost per serving
$0.10
Cheap·−76%
Cost per serving
$0.10
Avg·−74%
Cost per serving
$0.11
Avg·−70%
Cost per serving
$0.14
Avg·−55%
Cost per serving
$0.15
Avg·−52%
Cost per serving
$0.15
Avg·−52%
Cost per serving
$0.16
Avg·−49%
Cost per serving
$0.16
Avg·−47%Biotene, Vegan Vitamin C w/ Elderberry, 500 mg, 90 Tabs — $0.09 per serving ($8.38 for 90 servings), the lowest cost-per-dose elderberry in our Amazon US catalog as of June 2026.
About $0.15 per serving across 20 tracked elderberry products, ranging from $0.10 for the best deals to $0.23 for premium options.
Not always. The cheapest is sometimes cheaper because of the form — magnesium oxide costs less than glycinate per gram but absorbs at a fraction of the rate. Weigh cost-per-dose against form bioavailability and third-party testing, not price alone.