Cheapest Fennel on iHerb

Ranked by real cost per 10 mg of Fennel — cheapest value first.

Prices updated Jul 25, 2026 · 15 products · Prices in USD

The priciest option here costs about 67.0× more per 10 mg of Fennel than the best-value pick Mommy's Bliss. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mg
1
Mommy's Bliss, Postnatal, Lactation Hydration Drink Tablets, Lemon Lime, 10 Effervescent Tablets
Mommy's Bliss, Postnatal, Lactation Hydration Drink Tablets, Lemon Lime, 10 Effervescent Tablets
Mommy's Bliss
150 mg107.990.053View on iHerb →
2
Mommy's Bliss, Postnatal Lactation Hydration Drink Tablets, Berry Acai, 10 Effervescent Tablets
Mommy's Bliss, Postnatal Lactation Hydration Drink Tablets, Berry Acai, 10 Effervescent Tablets
Mommy's Bliss
150 mg107.990.053View on iHerb →
3
OLLY, Beat the Bloat, 25 Capsules
OLLY, Beat the Bloat, 25 Capsules
OLLY
100 mg2517.990.072View on iHerb →
4
Maxi Health, Voice & Throat Support™, Natural Berry, 8 fl oz (237 ml)
Maxi Health, Voice & Throat Support™, Natural Berry, 8 fl oz (237 ml)
Maxi Health
100 mg4737.990.081View on iHerb →
5
Irwin Naturals, Colon Flush™, 60 Liquid Soft-Gels
Irwin Naturals, Colon Flush™, 60 Liquid Soft-Gels
Irwin Naturals
113 mg2019.990.089View on iHerb →
6
Natural Factors, Women's Plus MultiStart, 180 Tablets
Natural Factors, Women's Plus MultiStart, 180 Tablets
Natural Factors
30 mg6027.970.155View on iHerb →
7
Irwin Naturals, Liver Detox & Blood Refresh®, 60 Liquid Soft-Gels
Irwin Naturals, Liver Detox & Blood Refresh®, 60 Liquid Soft-Gels
Irwin Naturals
50 mg3024.990.167View on iHerb →
8
Biocidin Botanicals, Motility Assist™, Botanical Regularity Formula with Digexin®, 30 Capsules
Biocidin Botanicals, Motility Assist™, Botanical Regularity Formula with Digexin®, 30 Capsules
Biocidin Botanicals
70 mg3035.970.171View on iHerb →
9
Irwin Naturals, Aloe & Triphala Active-Cleanse and Probiotics®, 60 Liquid Soft-Gels
Irwin Naturals, Aloe & Triphala Active-Cleanse and Probiotics®, 60 Liquid Soft-Gels
Irwin Naturals
60 mg2022.990.192View on iHerb →
10
Heritage Store, Castor Oil, 60 Vegetarian Capsules
Heritage Store, Castor Oil, 60 Vegetarian Capsules
Heritage Store
10 mg6015.290.255View on iHerb →
11
Purely Inspired, 7-Day Cleanse, 42 Capsules
Purely Inspired, 7-Day Cleanse, 42 Capsules
Purely Inspired
30 mg1412.410.296View on iHerb →
12
Hydroxycut, Hardcore Cleanse, 42 Capsules
Hydroxycut, Hardcore Cleanse, 42 Capsules
Hydroxycut
30 mg1423.180.552View on iHerb →
13
Swisse, Ultivite®, Women's Multivitamin, 120 Tablets
Swisse, Ultivite®, Women's Multivitamin, 120 Tablets
Swisse
3 mg12039.991.11View on iHerb →
14
Swisse, Ultivite®, Men's Multivitamin, 120 Tablets
Swisse, Ultivite®, Men's Multivitamin, 120 Tablets
Swisse
3 mg12039.991.11View on iHerb →
15
Mommy's Bliss, Baby Little Gums Soothing Oral Tablets, Age 2 Months+, 140 Tablets
Mommy's Bliss, Baby Little Gums Soothing Oral Tablets, Age 2 Months+, 140 Tablets
Mommy's Bliss
0 mg707.493.57View on iHerb →

How we rank Fennel

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.