Is chlorella capsules profitable to sell on Amazon United States?

The niche generates $24K/yr across 25 tracked products. 90-day search growth is -5.6%. Flapen's verdict: Worth a look (50/100).

How competitive is the chlorella capsules niche?

18 brands and 34 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 68% of demand.

What do buyers complain about in chlorella capsules?

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

When does demand for chlorella capsules peak?

Demand peaks in Jan–Nov; the busiest month runs 2.2× the quietest.

What does it cost to enter the chlorella capsules niche?

Listings span $6.97–$34.54; the average listing price is $19.85 (sweet spot $15–$100). The average incumbent carries 1,511 reviews — the moat a new listing must climb.

chlorella capsules

Worth a look

Shows low returns (0.0%), but a small market ($24K/yr) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great10.2%

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

Avg price

Great$19.85

avg listing price — sweet spot $15–$100

Price range

Good$6.97–$34.54

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

Brand share

Good68%

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

Review moat

Okay1,511.16

avg incumbent reviews — the moat a new listing must climb

Competition

Okay56%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-5.6%

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

Market size

Bad$24K

$24K/yr · 12K searches

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, chlorella capsules is a $24K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Jan–Nov. Verdict: Worth a look — 50/100.

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

chlorella capsules market data

Units sold / yr: 1K–1K; avg 0–100/product
Revenue / yr: $20K–$25K; units × avg price
Conversion rate: 10.2%
Avg BSR: #182
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 2.1%
Avg brand age: 96 months
Avg seller age: 195 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

56%

Top 20: 95%

Open market

28%

Nutricost17%
NOW Foods17%
HCL HERBAL CODE LABS16%
Piping Rock11%
Micro Ingredients7%
Dr. Mercola4%

Demand & seasonality

Weekly Amazon search volume, last 99 weeks — -5.6% search growth over the last 90 days.

Peak months: Jan, Nov · busiest ÷ quietest = 2.2×

Open Trend

Top chlorella capsules search terms

chlorella capsules10K/yr -12.0%7.6% conv.
clorella capsules2K/yr +33.1%6.6% conv.
chlorella powder capsules organic145/yr -73.7%0.0% conv.

All search terms

Top chlorella capsules 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

Nutricost Chlorella Capsules 500mg 240 Vegetarian Capsules Gluten-Free

Nutricost$13.824.6★1,006 rev

Chlorella Capsules 3000 mg - Cracked Cell Wall Blue Green Algae Supplement - Best Natural Detox Cleanse - Plant Vitamins Minerals Chlorophyll Vegan Protein Powder Pills - Made in USA

HCL HERBAL CODE LABS$23.494.7★435 rev

Piping Rock Chlorella | 1000mg | 120 Tablets

Piping Rock$6.974.7★443 rev

NOW Foods Supplements Organic Chlorella 500 mg with naturally occurring Chlorophyll Beta-Carotene mixed Carotenoids Vitamin C Iron and Protein 200 Tablets

NOW Foods$12.884.5★3,205 rev

Now Chlorella Tablets 1000mg 200 Tabs - Premium Non-GMO Microalgae - Green Superfood Supplement

NOW Foods$25.324.6★780 rev

Newest

by launch date

Micro Ingredients Organic Spirulina Chlorella Mini Tablets 2 500 Tablets (8 Month Supply) | 50/50 Algae Blend | No Fillers Non-GMO

Micro Ingredients$26.72478 rev

1y ago

BulkSupplements.com Chlorella Capsules - Broken Cell Wall Chlorella Supplement - Superfood Supplement Vegan & Gluten Free 5 Capsules per Serving 150 Count (Pack of 1)

BulkSupplements$19.0726 rev

2y ago

Complete Natural Products Organic Chlorella Capsules 500mg 100ct Pure Green Algae Superfood Detox & Immune Support Vitamin B12 & Chlorophyll Rich Plant-Based Vegan Non-GMO

Complete Natural Products$15.9120 rev

2y ago

Carlyle Chlorella Tablets Organic 500 mg | 1000 Count

Carlyle$17.01119 rev

3y ago

Organic Spirulina and Chlorella Capsules Chlorophyll Pills & Blue Green Algae to Support Powerful Detox Energy & A Healthy Immune System 3X More Chlorella Spirulina Powder/Serving 90 Ct

Teaveli$14.661,861 rev

3y ago

What buyers say about chlorella capsules

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

What buyers love

Quality-Overall23%

“Great quality, clean ingredients”

Nutritional Content8%

“Its a great natural nutrition powerhouse”

Advertised Vs Actual Product7%

“As described”

Value For Money7%

“Great Value”

Ease Of Use6%

“Easy to use”

Energy Level6%

“can help with energy”

Vegan/Organic5%

“I loved that is organic”

Vitamin4%

“Easy supplement to take for my enhanced well-being”

Detoxification2%

“Seems to work well, good detox”

Ease Of Chewing/Swallowing2%

“Easy to swallow”

What buyers complain about

Functionality-Overall8%

“Didn't work”

Side Effects7%

“hence inferior in its effects”

Smell6%

“my flatulence was back to smelling horrible”

Ease Of Use5%

“I cant get it down”

Allergies4%

“Adverse reaction”

Dosage4%

“Works great, i just wish there were less pulls in a dose, 6 pills is a lot to consume at once”

Taste-Overall4%

“Reordered recently, the batch with the production date of OCT 2025 has a yellowish green color and doesnt taste right”

Heart Health3%

“Two days later I had a major cardiac event”

Ingredients-Overall3%

“Some ingredients conflict with my medication”

Vitamin3%

“it kept returning every time I started back taking this supplement”

Top return reasons

Advertised Vs Actual Product27%

Smell27%

Acid Regulator/Stomach Ache Relief9%

Color9%

Joint Pain9%

Certifications9%

Regulates Digestion9%

Common questions

Is chlorella capsules profitable to sell on Amazon United States?: The niche generates $24K/yr across 25 tracked products. 90-day search growth is -5.6%. Flapen's verdict: Worth a look (50/100).
How competitive is the chlorella capsules niche?: 18 brands and 34 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in chlorella capsules?: Top complaints mined from reviews: Functionality-Overall, Side Effects, Smell. The return rate is 0.0%.
When does demand for chlorella capsules peak?: Demand peaks in Jan–Nov; the busiest month runs 2.2× the quietest.
What does it cost to enter the chlorella capsules niche?: Listings span $6.97–$34.54; the average listing price is $19.85 (sweet spot $15–$100). The average incumbent carries 1,511 reviews — the moat a new listing must climb.