Is bladderwrack profitable to sell on Amazon United States?

The niche generates $78K/yr across 30 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -21.1%. Flapen's verdict: Worth a look (51/100).

How competitive is the bladderwrack niche?

22 brands and 42 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 63% of demand.

What do buyers complain about in bladderwrack?

Top complaints mined from reviews: Dosage, Taste-Overall, Functionality-Overall. The return rate is 0.0%.

When does demand for bladderwrack peak?

Demand peaks in Aug; the busiest month runs 1.5× the quietest.

What does it cost to enter the bladderwrack niche?

Listings span $5.62–$36.07; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 2,660 reviews — the moat a new listing must climb.

bladderwrack

Worth a look

Shows low returns (0.0%), but soft demand (-21.1% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$17.58

avg listing price — sweet spot $15–$100

Conversion

Great7.5%

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

Brand share

Good63%

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

Price range

Good$5.62–$36.07

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

Competition

Good51%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay2,659.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$78K

$78K/yr · 59K searches

Growth

Bad-21.1%

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

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, bladderwrack is a $78K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Aug. Verdict: Worth a look — 51/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

bladderwrack market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: $70K–$88K; units × avg price
Conversion rate: 7.5%
Avg BSR: #3,113
Page quality: 0%
Prime: 97%
Sponsored: 80%
Out of stock: 0.8%
Avg brand age: 63 months
Avg seller age: 169 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

22 falling

Sellers

Top-5 brand share

63%

Top 20: 99%

Top-5 click share

51%

Top 20: 91%

Open market

31%

Starwest Botanicals19%
SOLARAY16%
Halo Naturals12%
Oregon's Wild Harvest10%
HERBAMAMA6%
Clean Nutraceuticals6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -21.1% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 1.5×

Open Trend

Top bladderwrack search terms

bladderwrack39K/yr -21.1%5.9% conv.
bladderwrack organic10K/yr -30.2%5.7% conv.
bladderwrack capsules6K/yr -6.8%8.7% conv.
bladderwrack herb4K/yr -19.3%6.3% conv.

All search terms

Top bladderwrack 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SOLARAY Bladderwrack 580 mg 100 VegCaps

SOLARAY$13.744.6★1,034 rev

Halo Naturals Organic Bladderwrack Cut & Sifted 4 Ounces USDA Certified | Resealable Pouch| Packaged in The USA

Halo Naturals$9.834.6★47 rev

Oregons Wild Harvest Bladderwrack Organic Non-GMO pullulan (Plant sourced) Vegan Capsules 90 Count

Oregon's Wild Harvest$19.334.6★830 rev

Starwest Botanicals Dried Bladderwrack Organic Powder - Natural Seaweed Herb Versatile Marine Botanical Certified Kosher Non-GMO - 4 oz Pouch

Starwest Botanicals$8.984.6★1,711 rev

Starwest Botanicals Dried Bladderwrack Organic Powder - Natural Seaweed Herb Versatile Marine Botanical Certified Kosher Non-GMO - Bulk 1 lb Bag

Starwest Botanicals$19.784.6★1,711 rev

Newest

by launch date

Oceans Balance Clean Organic Bladderwrack Powder (Fucus vesiculosus) from The Pristine Maine Coast | Vegan LabTested Purity Skin & Digestive Wellness 4 Oz

Ocean's Balance Clean Taste of Maine$11.811 rev

10mo ago

Sea Tox Organic Spirulina and Chlorella Capsules Natural Cleansing & Nourishment Sea Moss Bladderwrack Chlorophyll Burdock Root Ashwagandha Turmeric 90 Vegan Black Seed Oil Capsules By Clean Nutra

Clean Nutraceuticals$22.24152 rev

10mo ago

Halo Naturals Organic Bladderwrack Cut & Sifted 1 Pound (Fucus vesiculosus) USDA Certified | Resealable Pouch| Packaged in The USA

Halo Naturals$30.1147 rev

11mo ago

Clean Nutra Black Seed Oil Capsules + Sea Moss Ashwagandha Burdock Root Bladderwrack Seaweed Skin Detox Stress Relief Immune Support Focus Supplement Nigella Sativa 60 Pills

Clean Nutraceuticals$12.09197 rev

1y ago

Halo Naturals Organic Bladderwrack Cut & Sifted 4 Ounces USDA Certified | Resealable Pouch| Packaged in The USA

Halo Naturals$9.8347 rev

1y ago

What buyers say about bladderwrack

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

What buyers love

Quality-Overall18%

“Quality and easy to take with no issues”

Taste-Overall12%

“No weird flavor or after taste”

Energy Level8%

“Has improved my energy”

Vitamin8%

“I love these vitamins that make me feel healthy”

Efficiency7%

“Effective”

Value For Money6%

“Great deal”

Advertised Vs Actual Product5%

“As advertised”

Ease Of Chewing/Swallowing3%

“its chewable”

Ingredients-Overall3%

“I was told by my physician that the ingredients are all very healthy”

Regulates Digestion2%

“Helps with digestion, constipation”

What buyers complain about

Dosage7%

“Dosages are too low”

Taste-Overall7%

“Tastes like fish”

Functionality-Overall6%

“Didn't work for me”

Value For Money5%

“Not worth the money”

Side Effects4%

“But this month I started experiencing UTI symptoms and was confused”

Allergies3%

“I may be allergic to something in it mildly”

Advertised Vs Actual Product3%

“Does not reflect the advertisement”

Sleep Quality3%

“I dont sleep well at night”

Nutritional Content3%

“make your own again these isn't use for taste those nutrients”

Visibility3%

“Didn't see or feel a difference”

Top return reasons

Inflammation25%

Advertised Vs Actual Product25%

Moist/Dry25%

Hard Feel13%

Ease Of Chewing/Swallowing13%

Common questions

Is bladderwrack profitable to sell on Amazon United States?: The niche generates $78K/yr across 30 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -21.1%. Flapen's verdict: Worth a look (51/100).
How competitive is the bladderwrack niche?: 22 brands and 42 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in bladderwrack?: Top complaints mined from reviews: Dosage, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
When does demand for bladderwrack peak?: Demand peaks in Aug; the busiest month runs 1.5× the quietest.
What does it cost to enter the bladderwrack niche?: Listings span $5.62–$36.07; the average listing price is $17.58 (sweet spot $15–$100). The average incumbent carries 2,660 reviews — the moat a new listing must climb.