Is cramp bark profitable to sell on Amazon United States?

The niche generates $92K/yr across 13 tracked products. 90-day search growth is -5.3%. Flapen's verdict: Skip it (49/100).

How competitive is the cramp bark niche?

9 brands and 18 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 86% of demand.

What do buyers complain about in cramp bark?

Top complaints mined from reviews: Taste-Overall, Quality-Overall, Value For Money. The return rate is 0.0%.

When does demand for cramp bark peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the cramp bark niche?

Listings span $9.15–$54.60; the average listing price is $23.33 (sweet spot $15–$100). The average incumbent carries 144 reviews — the moat a new listing must climb.

cramp bark

Skip it

A concentrated shelf (top 5 take 75% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$23.33

avg listing price — sweet spot $15–$100

Review moat

Great143.77

avg incumbent reviews — the moat a new listing must climb

Price range

Great$9.15–$54.60

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great8.7%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay86%

top-5 brand share — brands hold most of the demand

Market size

Bad$92K

$92K/yr · 45K searches

Growth

Bad-5.3%

90-day search growth — must beat 0% to launch

Competition

Bad75%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, cramp bark is a $92K/yr Amazon United States market (45K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 49/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

cramp bark market data

Units sold / yr: 3K–4K; avg 100–250/product
Revenue / yr: $70K–$93K; units × avg price
Conversion rate: 8.7%
Avg BSR: #3,978
Page quality: 0%
Prime: 69%
Sponsored: 69%
Out of stock: 5.7%
Avg brand age: 98 months
Avg seller age: 168 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

10%

Secrets of the Tribe33%
Herb Pharm27%
NY Spice Shop15%
HerbEra7%
Swanson5%
Best Botanicals4%
Open — no brand owns it (3 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -5.3% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top cramp bark search terms

cramp bark33K/yr -6.7%6.5% conv.
cramp bark tincture8K/yr +20.3%7.5% conv.
cramp bark herb4K/yr -42.4%4.5% conv.

All search terms

Top cramp bark products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Secrets of the Tribe Cramp Bark USDA Organic | Alcohol-Free Extract High-Potency Herbal Drops | Made from 100% Certified Organic Cramp Bark (Viburnum Opulus) Dried Bark 2 OZ

Secrets of the Tribe$23.514.4★60 rev

Herb Pharm Cramp Bark Liquid Extract Drops for Musculoskeletal Support 1 Oz

Herb Pharm$19.574.5★671 rev

NY Spice Shop Cramp Bark Cut & Sifted - 4 Ounce Viburnum Opulus - Herbal Cramp Bark Ingredient for Herbal Tea and Traditional Decoction Use with Woody Flavor

NY Spice Shop$14.934.6★65 rev

Cramp Bark Alcohol-Free Herbal Extract Tincture Concentrated Liquid Drops Natural USDA Organic Cramp Bark (Viburnum Opulus) Dried Bark (2 fl oz)

HerbEra$23.134.4★54 rev

Herb Pharm Cramp Care Liquid Herbal Extract Drops to Support a Healthy Menstrual Cycle 1 Oz

Herb Pharm$17.034.5★93 rev

Newest

by launch date

NY Spice Shop Cramp Bark Cut & Sifted - 4 Ounce Viburnum Opulus - Herbal Cramp Bark Ingredient for Herbal Tea and Traditional Decoction Use with Woody Flavor

NY Spice Shop$14.9365 rev

1y ago

Swanson Full SPEC Cramp BARK 500MG 60 CAPS

Swanson$9.1515 rev

1y ago

Cramp Bark Made from 100% Viburnum Opulus Bark Cut & Dried - Net weight: 1.5oz/42.5g. Other Common Names Include Water Elder Snowball Tree Common Snowball and European Cranberrybush.

Naturegrail$14.9619 rev

2y ago

NY Spice Shop Cramp Bark Cut & Sifted - Cramp Barks Herb - Cramp Bark Tea Infusion - Versatile Cooking Ingredient - Viburnum Opulus Tree Essence - Natural Flavor Enhancer (1 Pound)

NY Spice Shop$24.9565 rev

2y ago

Secrets of the Tribe Cramp Bark 60 Capsules Made with Vegetable Capsules and Cramp Bark (Viburnum Opulus) Dried Bark (60 Capsules)

Secrets of the Tribe$22.4821 rev

4y ago

What buyers say about cramp bark

What buyers praise and complain about, mined from review topics.

What buyers love

Muscle Pain Relief23%

“This has really helped with our cramps”

Menstrual Issues17%

“Finally something effective for endometriosis”

Efficiency9%

“I truly think these help with my cycle”

Quality-Overall8%

“Good quality”

Side Effects4%

“without the side effects”

Allergies4%

“No itching or feeling high from pain meds”

Correct Contents4%

“large amount of product”

Smell4%

“Very nice smell”

Hormonal Balance4%

“Helps my endo pain”

Taste-Overall4%

“The taste isnt that bad”

What buyers complain about

Taste-Overall25%

“not a great taste”

Quality-Overall13%

“Poor quality control”

Value For Money9%

“Price was a bit high”

Muscle Pain Relief6%

“this did nothing for muscle cramps for me”

Size-Overall6%

“Very small amount for price”

Artificial Sweeteners6%

“This is literally sugar and water”

Sweetness6%

“I have been taking cramp bark for a while and there is nothing sweet about it, it should taste awful and sometimes burn”

Functionality-Overall6%

“It did not work well for me”