Tribulus
4 products • sorted: organic → natural → fermentation → natural + synthetic → synthetic
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Ranked by organic → natural → fermentation → natural + synthetic → synthetic, then a numeric per-$1 ahead of an honest gap, then seed oil at the end of that group, then fewest additional ingredients, then highest amount per $1.
Tribulus 1,000 mg, Double Strength, 90 Tablets
NOW Foods
$11.99
7,506 mg Tribulus terrestris extract per $1 spent
Tribulus Extract, 750 mg, 60 Tablets
Source Naturals
$15.38
2,926 mg Tribulus fruit extract per $1 spent
Swanson Superior Herbs Tribulus Terrestris Extract, 500 mg, 60 Capsules
Swanson
no exact price on the stored label
no exact mg Bulgarian tribulus whole plant per $1 spent (amazon.com/dp/B00GZRQAY2 on 19 Oct 2026 returned no featured price; swansonvitamins.com SKU SWH179 one-time $8.49 is not an Amazon featured offer; stored $8.99 was not a featured offer)
Tribulus Terrestris Extract, 500 mg, 60 Capsules
Swanson
no exact price on the stored label
no exact mg Bulgarian tribulus whole plant per $1 spent (amazon.com/dp/B00GZRQAY2 on 19 Oct 2026 returned no featured price; swansonvitamins.com SKU SWH179 one-time $8.49 is not an Amazon featured offer; stored $8.99 was not a featured offer)