Is fucoxanthin profitable to sell on Amazon United States?

The niche generates $85K/yr across 16 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -14.7%. Flapen's verdict: Worth a look (50/100).

How competitive is the fucoxanthin niche?

15 brands and 32 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 76% of demand.

What do buyers complain about in fucoxanthin?

Top complaints mined from reviews: Advertised Vs Actual Product, Nutritional Content, Dosage. The return rate is 0.0%.

When does demand for fucoxanthin peak?

Demand peaks in Feb; the busiest month runs 1.8× the quietest.

What does it cost to enter the fucoxanthin niche?

Listings span $6.87–$63.60; the average listing price is $30.68 (sweet spot $15–$100). The average incumbent carries 261 reviews — the moat a new listing must climb.

fucoxanthin

Worth a look

Shows low returns (0.0%), but soft demand (-14.7% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$30.68

avg listing price — sweet spot $15–$100

Review moat

Great260.56

avg incumbent reviews — the moat a new listing must climb

Price range

Great$6.87–$63.60

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good6.0%

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

Brand share

Okay76%

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

Market size

Bad$85K

$85K/yr · 46K searches

Competition

Bad76%

top-5 click share — a locked-up shelf

Growth

Bad-14.7%

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

According to Flapen's Amazon United States niche tracking, fucoxanthin is a $85K/yr Amazon United States market (46K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Feb. Verdict: Worth a look — 50/100.

Data updated Jul 26, 2026 · scored weekly · How we score niches

fucoxanthin market data

Units sold / yr: 2K–3K; avg 100–250/product
Revenue / yr: $61K–$77K; units × avg price
Conversion rate: 6.0%
Avg BSR: #3,289
Page quality: 0%
Prime: 94%
Sponsored: 75%
Out of stock: 2.7%
Avg brand age: 66 months
Avg seller age: 168 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

15 rising

Sellers

Top-5 brand share

76%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

16%

Horbäach22%
MIUT18%
Naturalis14%
NusaPure13%
Piping Rock9%
Garden of Life8%
Open — no brand owns it (9 brands, 16%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -14.7% search growth over the last 90 days.

Peak months: Feb · busiest ÷ quietest = 1.8×

Open Trend

Top fucoxanthin search terms

fucoxanthin25K/yr -3.3%3.1% conv.
brown seaweed9K/yr -32.9%7.4% conv.
fucoxanthin supplement6K/yr -28.3%5.2% conv.
brown seaweed supplement4K/yr -22.2%7.6% conv.
brown seaweed extract2K/yr -16.4%5.8% conv.

All search terms

Top fucoxanthin 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 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Horbach Brown Seaweed Extract Capsules | 200 Pills

Horbäach$17.824.5★678 rev

MIUT Fucoxanthin Brown Seaweed Extract Supplement 250mg - 10% Standardized Fucoxanthin w/Vitamin E & MCT Oil Antioxidant & Metabolic Support - Vegan Marine Carotenoid Formula Non-GMO - 100 Capsules

MIUT$20.144.6★29 rev

Naturalis New Zealand Fucoxanthin 4mg 60 Softgels | Better Body Metabolism*

Naturalis$39.764.3★50 rev

NusaPure Brown Seaweed Capsules 200 mg 200 Veg Capsules (Non-GMO Vegan)

NusaPure$23.164.5★788 rev

Piping Rock Brown Seaweed Capsules | 60 Count

Piping Rock$6.874.4★157 rev

Newest

by launch date

Zoone Nutra Lymphatic Drainage Capsules - Bloating & Water Retention Relief with Fucoxanthin for Metabolism Boost - Detox Lymph & Immune Support with Dandelion - 90 Veggie Caps

Zoone Nutra$24.8723 rev

3mo ago

MIUT Fucoxanthin Brown Seaweed Extract Supplement 250mg - 10% Standardized Fucoxanthin w/Vitamin E & MCT Oil Antioxidant & Metabolic Support - Vegan Marine Carotenoid Formula Non-GMO - 100 Capsules

MIUT$20.1429 rev

4mo ago

Fucoidan 500mg Brown Seaweed Extract Supplement from a Natural Source of Fucoidan & Fucoxanthin | 120 Vegetarian Capsules for Energy & Wellness | Made in USA GMP Certified

LongLifeNutri$25.7851 rev

1y ago

VINATURA Caralluma Fimbriata EGCG 45% Extract 1250mg + Fucoxanthin 3mg per Serving for Immune Support Energy and Mental Focus - 60 Capsules 30 Servings

VINATURA$24.09107 rev

3y ago

Piping Rock Brown Seaweed Capsules | 60 Count

Piping Rock$6.87157 rev

4y ago

What buyers say about fucoxanthin

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

What buyers love

Ingredients-Overall8%

“Great selection of ingredients”

Quality-Overall7%

“Excellent product and fast results”

Ease Of Chewing/Swallowing6%

“The capsules are easy to take”

Taste-Overall5%

“I love that there is no bad taste or smell”

Regulates Digestion5%

“do not give him any issues during digestion”

Value For Money5%

“not over priced”

Vitamin4%

“The supportive vitamins are decent amounts”

Side Effects4%

“dont leave any weird aftertaste”

Ease Of Use4%

“easy to use”

Nutritional Content4%

“I really like this supplement”

What buyers complain about

Advertised Vs Actual Product9%

“Blatant false advertising”

Nutritional Content6%

“she lost 2kg during this time. though this could be due to other dietary changes”

Dosage5%

“The very small dose. 100 mg”

Functionality-Overall5%

“Didnt work for me”

Flavor3%

“it has an artificial raspberry flavor that reminds me a bit of cough medicine”

Taste-Overall3%

“The taste is not great”

Regulates Digestion3%

“It is rare to find a supplement that delivers such tangible physical relief without causing any digestive jitters or discomfort”

Color3%

“The color is a bit off-putting”

Sleep Quality2%

“Gave me insomnia”

Ingredients-Overall2%

“Fucoxanthin is one of those ingredients that doesnt get as much attention as it should”

Top return reasons

Certifications100%

Common questions

Is fucoxanthin profitable to sell on Amazon United States?: The niche generates $85K/yr across 16 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -14.7%. Flapen's verdict: Worth a look (50/100).
How competitive is the fucoxanthin niche?: 15 brands and 32 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 76% of demand.
What do buyers complain about in fucoxanthin?: Top complaints mined from reviews: Advertised Vs Actual Product, Nutritional Content, Dosage. The return rate is 0.0%.
When does demand for fucoxanthin peak?: Demand peaks in Feb; the busiest month runs 1.8× the quietest.
What does it cost to enter the fucoxanthin niche?: Listings span $6.87–$63.60; the average listing price is $30.68 (sweet spot $15–$100). The average incumbent carries 261 reviews — the moat a new listing must climb.