Is chitosan profitable to sell on Amazon United States?

The niche generates $94K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +19.6%. Flapen's verdict: Worth a look (52/100).

How competitive is the chitosan niche?

10 brands and 24 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in chitosan?

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

When does demand for chitosan peak?

Demand peaks in Sep; the busiest month runs 1.6× the quietest.

What does it cost to enter the chitosan niche?

Listings span $9.75–$33.82; the average listing price is $18.60 (sweet spot $15–$100). The average incumbent carries 367 reviews — the moat a new listing must climb.

chitosan

Worth a look

Shows low returns (0.0%), but a concentrated shelf (top 5 take 75% of clicks) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$18.60

avg listing price — sweet spot $15–$100

Review moat

Great367.42

avg incumbent reviews — the moat a new listing must climb

Price range

Great$9.75–$33.82

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

Conversion

Good6.0%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Okay+19.6%

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

Brand share

Okay81%

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

Market size

Bad$94K

$94K/yr · 84K searches

Competition

Bad75%

top-5 click share — a locked-up shelf

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, chitosan is a $94K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Sep. Verdict: Worth a look — 52/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

chitosan market data

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $112K–$149K; units × avg price
Conversion rate: 6.0%
Avg BSR: #2,196
Page quality: 0%
Prime: 83%
Sponsored: 50%
Out of stock: 4.6%
Avg brand age: 80 months
Avg seller age: 174 days

Competition & brand share

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

Brands

10 flat

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

12%

Nutricost27%
Carlyle18%
NOW Foods13%
BulkSupplements12%
Best Naturals10%
NusaPure7%
Open — no brand owns it (4 brands, 12%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +19.6% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 1.6×

Open Trend

Top chitosan search terms

chitosan53K/yr +12.9%5.7% conv.
chitosan supplements17K/yr +7.5%6.9% conv.
chitin5K/yr +44.8%0.4% conv.
quitosano de abeja7K/yr >1,000%1.2% conv.
chitosan supplements for weight loss3K/yr +5.7%6.3% conv.

All search terms

Top chitosan 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 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nutricost Chitosan Supplement (1 200mg) 120 Capsules 40 Servings GMO-Free

Nutricost$9.754.4★65 rev

Carlyle Chitosan Supplement 1200mg | 120 Quick Release Capsules

Carlyle$9.964.4★361 rev

Best Naturals -- Chitosan -- 500 mg -- 120 Tablets

Best Naturals$9.834.4★1,009 rev

NOW Supplements Chitosan 500 mg plus Chromium Weight Management* 240 Veg Capsules

NOW Foods$22.694.4★1,186 rev

BulkSupplements.com Chitosan Capsules - Chitosan Supplements Chitosan 1000mg - from Shellfish 2 Capsule per Serving 180 Capsules (Pack of 1)

BulkSupplements$20.114.6★69 rev

Newest

by launch date

Nutricost Chitosan Supplement (1 200mg) 120 Capsules 40 Servings GMO-Free

Nutricost$9.7565 rev

9mo ago

BulkSupplements.com Chitosan Capsules - Chitosan Supplements Chitosan 1000mg - from Shellfish 2 Capsule per Serving 180 Capsules (Pack of 1)

BulkSupplements$20.1169 rev

2y ago

Carlyle Chitosan Supplement 1200mg | 120 Quick Release Capsules

Carlyle$9.96361 rev

3y ago

Chitosan (Plant-Based) Gluten-Free Vegan - 5g/0.2oz

Modernist Pantry$14.9316 rev

6y ago

NusaPure Chitosan 1200mg 150 Caps (Non-GMO & Soyfree) with Bioperine

NusaPure$23.10781 rev

6y ago

What buyers say about chitosan

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

What buyers love

Quality-Overall14%

“Ingredient sourcing reflects consistent quality”

Weight Loss8%

“These are a very affordable weight loss supplement”

Advertised Vs Actual Product8%

“Works as advertised”

Efficiency7%

“It is effective”

Value For Money6%

“the value for the price is excellent”

Functionality-Overall6%

“Research indicates it helps remove plastic from the body. I'm confident that it works”

Ease Of Chewing/Swallowing4%

“very easy to swallow”

Vitamin4%

“The brand always delivers a quality supplement with a decent price tag”

Size-Overall3%

“The capsules themselves are standard in size”

Disinfection3%

“Great for Mold detox”

What buyers complain about

Functionality-Overall17%

“Didn't work for me”

Dosage11%

“I was a bit puzzled by the serving quantity from the start”

Side Effects7%

“Unfortunately, after taking them consistently as directed for the full 40 days, I didn't notice any significant benefits that would make me want to continue”

Bitter6%

“it was too bitter”

Nutritional Content6%

“But saw no health improvement”

Size-Overall6%

“Small capsules”

Weight Loss4%

“you will wither maintain your goal weight or lose weight if you are in a caloric deficit”

Acid Regulator/Stomach Ache Relief4%

“Gas, nausea, and PAINFUL bloating are what Ive experienced this and the last few times”