Herbs & botanicals
Passionflower
Leaves and flowers of a climbing plant. Taken to relax and sleep – studies are small.
22 products from US online stores, sorted by what 400 mg of passionflower costs – not by the price per pack.
2¢Lowest cost
per 400 mg passionflower
- Prices checked Nov 1, 2026, US
- No paid placements
What does 400 mg mean?
- passionflower per serving in most of the products we checked
- 250–1,100 mgpassionflower per serving in most of the products we checked
- 400 mg is about one serving: half of the 22 products we checked have up to 500 mg per serving, the other half more.
- There’s no official daily amount for passionflower.
We compare by 400 mg only so products line up – it’s not a recommendation. Not medical advice.
Where products miss quality points
How the 22 products score
- Very good 90+: 0
- Good 75+: 22
- Fair 60+: 0
- Low under 60: 0
- have no seal from an independent testing program
- 100%have no seal from an independent testing program10 of 30 testing points for GMP, 15 for the 2 whose label says “third-party tested”
The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.
We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works
Pack size
Compare packs of a similar size.
All sizes in one list can affect the results – big packs usually cost less per 400 mg. Pick a size above to compare packs that are alike.
22 products · cheapest per 400 mg passionflower first
- Rank 1
Frontier Co-op
Cut & Sifted Passion Flower Herb
Loose herb · Powder
75Good qualityCountry not stated2¢per 400 mg
Lowest
- Pack
- $23.10453 g (1 lb)412 servings
- Passionflower per serving
- 1,100 mgin 1.1 g
- Pack lasts
- 1,132 daysif you take 400 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 2
Swanson Vitamins
Full Spectrum Passion Flower
Whole herb · Capsules
75Good qualityCountry not stated7.1¢per 400 mg
246% more
- Pack
- $5.2960 capsules
- Passionflower per serving
- 500 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (500 mg) a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 3
Amazing Nutrition
Herbal Secrets Passion Flower (Passiflora incarnata)
Whole herb · Capsules
75Good qualityMade in USA7.1¢per 400 mg
250% more
- Pack
- $14.99240 capsules120 servings
- Passionflower per serving
- 700 mgin 2 capsules
- Pack lasts
- 120 daysif you take 2 capsules (700 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 4
Swanson Vitamins
Full Spectrum Passion Flower, 500 mg
Whole herb · Capsules
75Good qualityCountry not stated7.8¢per 400 mg
280% more
- Pack
- $5.8260 capsules
- Passionflower per serving
- 500 mgin 1 capsule
- Pack lasts
- 60 daysif you take 1 capsule (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 5
Amazing Nutrition
Herbal Secrets Passion Flower (Passiflora incarnata)
Whole herb · Capsules
80Good qualityMade in USA8.6¢per 400 mg
320% more
- Pack
- $8.99120 capsules60 servings
- Passionflower per serving
- 700 mgin 2 capsules
- Pack lasts
- 60 daysif you take 2 capsules (700 mg) a day
amazingnutrition.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 6
Nutricost
Passion Flower Extract, 1,500 mg
Extract · Capsules
80Good qualityMade in USA8.9¢per 400 mg
336% more
- Pack
- $10.00120 capsules
- Passionflower per serving
- 375 mgin 1 capsule
- Pack lasts
- 60 daysif you take 2 capsules (750 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 7
Nutricost
Passion Flower Extract
Extract · Capsules
75Good qualityCountry not stated$0.11per 400 mg
422% more
- Pack
- $11.97120 capsules
- Passionflower per serving
- 375 mgin 1 capsule
- Pack lasts
- 60 daysif you take 2 capsules (750 mg) a day
nutricost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 8
Swanson Vitamins
Passion Flower Liquid Extract - Alcohol & Sugar Free
Extract · Liquid
75Good qualityCountry not stated$0.13per 400 mg
549% more
- Pack
- $9.7929.6 ml (1 fl oz)30 servings
- Passionflower per serving
- 1,000 mgin 1 ml
- Pack lasts
- 74 daysif you take 400 mg a day
swansonvitamins.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 9
Solaray
True Herbs, Passion Flower
Whole herb · Capsules
75Good qualityCountry not stated$0.15per 400 mg
622% more
- Pack
- $12.89100 capsules50 servings
- Passionflower per serving
- 700 mgin 2 capsules
- Pack lasts
- 50 daysif you take 2 capsules (700 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 10
Nature's Answer
Passionflower Extract - Low Alcohol Liquid
Extract · Liquid
75Good qualityMade in USA$0.17per 400 mg
731% more
- Pack
- $6.9930 servings
- Passionflower per serving
- 550 mg
- Pack lasts
- 41 daysif you take 400 mg a day
naturesanswer.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 11
Nature's Answer
Passionflower Aerial Parts, Fluid Extract, Alcohol-Free, 2,000 mg
Extract · Liquid
75Good qualityCountry not stated$0.18per 400 mg
794% more
- Pack
- $13.4929.6 ml (1 fl oz)15 servings
- Passionflower per serving
- 2,000 mgin 2 ml
- Pack lasts
- 74 daysif you take 400 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 12
Nature's Answer
Passionflower Extract - Alcohol Free Liquid
Extract · Liquid
75Good qualityCountry not stated$0.24per 400 mg
1,076% more
- Pack
- $17.9915 servings
- Passionflower per serving
- 2,000 mg
- Pack lasts
- 75 daysif you take 400 mg a day
naturesanswer.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 13
Herb Pharm
Passionflower
Extract · Liquid
75Good qualityCountry not stated$0.26per 400 mg
1,194% more
- Pack
- $17.2729.6 ml (1 fl oz)42 servings
- Passionflower per serving
- 619 mgin 0.7 ml
- Pack lasts
- 65 daysif you take 400 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 14
California Gold Nutrition
EuroHerbs, Passion Flower Extract, Euromed Quality, 250 mg
Extract · Capsules
80Good qualityCountry not stated$0.27per 400 mg
1,236% more
- Pack
- $10.2260 capsules
- Passionflower per serving
- 250 mgin 1 capsule
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 15
Nature's Answer
Passionflower
Extract · Capsules
80Good qualityMade in USA$0.36per 400 mg
1,649% more
- Pack
- $13.3860 capsules30 servings
- Passionflower per serving
- 500 mgin 2 capsules
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 16
Solaray
Vital Extracts, Passion Flower
Extract · Capsules
75Good qualityCountry not stated$0.36per 400 mg
1,677% more
- Pack
- $13.5960 capsules
- Passionflower per serving
- 250 mgin 1 capsule
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 17
Paradise Herbs
Passion Flower
Extract · Capsules
75Good qualityMade in USA$0.40per 400 mg
1,860% more
- Pack
- $14.9960 capsules
- Passionflower per serving
- 250 mgin 1 capsule
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
paradiseherbs.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 18
Paradise Herbs
Passion Flower
Extract · Capsules
75Good qualityMade in USA$0.41per 400 mg
1,919% more
- Pack
- $15.4460 capsules
- Passionflower per serving
- 250 mgin 1 capsule
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 19
Nature's Answer
Passionflower - Veggie Capsules
Extract · Capsules
80Good qualityMade in USA$0.45per 400 mg
2,121% more
- Pack
- $16.9960 capsules30 servings
- Passionflower per serving
- 500 mgin 2 capsules
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
naturesanswer.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 20
NaturesPlus
Herbal Actives Passion Flower Capsules
Whole herb · Capsules
75Good qualityCountry not stated$0.55per 400 mg
2,574% more
- Pack
- $20.4560 capsules
- Passionflower per serving
- 250 mgin 1 capsule
- Pack lasts
- 30 daysif you take 2 capsules (500 mg) a day
naturesplus.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 21
Oregon's Wild Harvest
Organic Passionflower Extract
Extract · Liquid
75Good qualityMade in USA$0.78per 400 mg
3,705% more
- Pack
- $14.3629.6 ml (1 fl oz)30 servings
- Passionflower per serving
- 250 mgin 1 ml
- Pack lasts
- 18 daysif you take 400 mg a day
vitacost.com (opens in a new tab)Checked Nov 1, 2026 · Label
- Rank 22
Oregon's Wild Harvest
Passionflower Organic Extract
Extract · Liquid
75Good qualityMade in USA$0.96per 400 mg
4,593% more
- Pack
- $17.9530 servings
- Passionflower per serving
- 250 mg
- Pack lasts
- 18 daysif you take 400 mg a day
oregonswildharvest.com (opens in a new tab)Checked Nov 1, 2026 · Label
Good to know
- Fact
- 4,593%more per 400 mg for the most expensive product than for the cheapest.
- Fact
- 336%more per 400 mg for the cheapest extract than for the cheapest loose herb.
How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check
The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.
How we calculate
Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.
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