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Cheapest Passion Flower on iHerb

Ranked by real cost per 100 mg of Passion Flower — cheapest value first.

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

The priciest option here costs about 16.9× more per 100 mg of Passion Flower than the best-value pick Nutricost. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 100 mg
1
Nutricost, Passion Flower Extract, 1,500 mg, 120 Capsules
Nutricost, Passion Flower Extract, 1,500 mg, 120 Capsules
Nutricost
375 mg12010.000.022View on iHerb →
2
Nature's Answer, Passionflower Aerial Parts, Fluid Extract, 2,000 mg, 1 fl oz (30 ml)
Nature's Answer, Passionflower Aerial Parts, Fluid Extract, 2,000 mg, 1 fl oz (30 ml)
Nature's Answer
2,000 mg1510.190.034View on iHerb →
3
Solaray, True Herbs, Passion Flower, 100 VegCaps (350 mg per Capsule)
Solaray, True Herbs, Passion Flower, 100 VegCaps (350 mg per Capsule)
Solaray
700 mg5012.890.037View on iHerb →
4
NOW Foods, Passion Flower, 350 mg, 90 Veg Capsules
NOW Foods, Passion Flower, 350 mg, 90 Veg Capsules
NOW Foods
700 mg4512.230.039View on iHerb →
5
Nature's Answer, Passionflower Aerial Parts, Fluid Extract, Alcohol-Free, 2,000 mg, 1 fl oz (30 ml)
Nature's Answer, Passionflower Aerial Parts, Fluid Extract, Alcohol-Free, 2,000 mg, 1 fl oz (30 ml)
Nature's Answer
2,000 mg1512.740.043View on iHerb →
6
California Gold Nutrition, EuroHerbs™, Passion Flower Extract, Euromed Quality, 250 mg, 60 Veggie Capsules
California Gold Nutrition, EuroHerbs™, Passion Flower Extract, Euromed Quality, 250 mg, 60 Veggie Capsules
California Gold Nutrition
250 mg609.290.062View on iHerb →
7
NutraChamps, Dreamrite, 60 Vegan Capsules
NutraChamps, Dreamrite, 60 Vegan Capsules
NutraChamps
100 mg302.000.067View on iHerb →
8
Nature's Answer, Passionflower, 60 Vegetarian Capsule (250 mg per Capsule)
Nature's Answer, Passionflower, 60 Vegetarian Capsule (250 mg per Capsule)
Nature's Answer
500 mg3012.740.085View on iHerb →
9
Paradise Herbs, Passion Flower, 60 Vegetarian Capsules (250 mg per Capsule)
Paradise Herbs, Passion Flower, 60 Vegetarian Capsules (250 mg per Capsule)
Paradise Herbs
250 mg6014.990.100View on iHerb →
10
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 200 Tablets
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 200 Tablets
Source Naturals
200 mg10024.330.122View on iHerb →
11
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets
Source Naturals
200 mg5013.650.137View on iHerb →
12
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 50 Tablets
Source Naturals, Sleep Science®, NightRest™ With Melatonin, 50 Tablets
Source Naturals
200 mg257.350.147View on iHerb →
13
Swolverine, BCAA 2:1:1, Pomegranate Acai, 10.05 oz (285 g)
Swolverine, BCAA 2:1:1, Pomegranate Acai, 10.05 oz (285 g)
Swolverine
350 mg3016.520.157View on iHerb →
14
Natural Factors, 3 Brains, The Best-Sleep, 90 Vegetarian Capsules
Natural Factors, 3 Brains, The Best-Sleep, 90 Vegetarian Capsules
Natural Factors
250 mg4518.710.166View on iHerb →
15
Nature's Truth, Calm Caps™ Plus Passion Flower & Chamomile, 90 Quick Release Capsules
Nature's Truth, Calm Caps™ Plus Passion Flower & Chamomile, 90 Quick Release Capsules
Nature's Truth
260 mg2210.240.179View on iHerb →
16
NOW Foods, Sleep, 90 Veg Capsules
NOW Foods, Sleep, 90 Veg Capsules
NOW Foods
200 mg4516.520.184View on iHerb →
17
Natural Stacks, Apigenin+, 120 Vegan Capsules
Natural Stacks, Apigenin+, 120 Vegan Capsules
Natural Stacks
200 mg6022.950.191View on iHerb →
18
JoySpring, Mood Munchies Gummies, Natural Berries, 60 Gummies
JoySpring, Mood Munchies Gummies, Natural Berries, 60 Gummies
JoySpring
250 mgfrom6029.990.200View on iHerb →
19
Metagenics, Tran-Q® Sleep, 60 Tablets
Metagenics, Tran-Q® Sleep, 60 Tablets
Metagenics
726 mg3045.950.211View on iHerb →
20
Olympian Labs, Rest Easy, 60 Vegetarian Capsules
Olympian Labs, Rest Easy, 60 Vegetarian Capsules
Olympian Labs
200 mg3013.190.220View on iHerb →
21
Source Naturals, Hi-Stress B&C With Herbs, 120 Tablets
Source Naturals, Hi-Stress B&C With Herbs, 120 Tablets
Source Naturals
200 mg3014.080.235View on iHerb →
22
Source Naturals, Sleep Science®, NutraSleep™, 100 Tablets
Source Naturals, Sleep Science®, NutraSleep™, 100 Tablets
Source Naturals
200 mg2517.430.349View on iHerb →
23
Emerald Laboratories, Sleep Health, 60 Vegetable Caps
Emerald Laboratories, Sleep Health, 60 Vegetable Caps
Emerald Laboratories
300 mg3031.460.350View on iHerb →
24
Natural Balance, Happy Camper, Stress Chill, 120 Vegcaps
Natural Balance, Happy Camper, Stress Chill, 120 Vegcaps
Natural Balance
300 mg3033.190.369View on iHerb →
25
Host Defense, Mushrooms™ Mycobenefits, Sleep, 60 Capsules
Host Defense, Mushrooms™ Mycobenefits, Sleep, 60 Capsules
Host Defense
200 mg3022.470.375View on iHerb →

How we rank Passion Flower

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.