---
title: "Spirulina and Chlorella Capsules — $674K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/spirulina-and-chlorella-capsules"
last_updated: "2026-08-06T02:49:40.167Z"
locale: en
meta:
description: "Niche score 57/100 · $674K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $674K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Spirulina and Chlorella Capsules — $674K/yr Amazon US Niche (2026) - Flapen"
---
# **spirulina and chlorella capsules**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 67Growth 35Conversion 80Competition 30Returns 100Price range 86Avg price 95Brand share 44Review moat 49Quality gap 28
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$24.87**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.15–$45.38**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****8.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$674K**
$674K/yr · 326K searches
**Review moat**
**Okay****1,552.87**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+7.9%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****67%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, spirulina and chlorella capsules is a $674K/yr Amazon United States market (326K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 57/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spirulina and chlorella capsules market data**
- **Units sold / yr**
- **25K–30K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$622K–$746K**
- units × avg price
- **Conversion rate**
- **8.3%**
- **Avg BSR**
- **#36**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **87%**
- **Out of stock**
- **2.4%**
- **Avg brand age**
- **74 months**
- **Avg seller age**
- **153 days**
## **Competition & brand share**
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**42**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**67%**
Top 20: 100%
**Open market**
**16%**
- Micro Ingredients49% - Sunlit Best Green Organics9% - Snap Supplements9% - HCL HERBAL CODE LABS6% - Carlyle5% - Sunfood Superfoods5% - Open — no brand owns it (6 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +7.9% search growth over the last 90 days.
10K6KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/spirulina-and-chlorella-capsules/trend)
## **Top spirulina and chlorella capsules search terms**
- **spirulina chlorella**79K/yr+5.3%6.3% conv. - **chlorella spirulina tablets**59K/yr+10.6%7.8% conv. - **spirulina chlorella tablets**35K/yr+64.0%7.9% conv. - **spirulina and chlorella capsules**49K/yr-8.0%7.1% conv. - **spirulina and chlorella**19K/yr+73.7%4.9% conv. - **chlorella spirulina**21K/yr-19.2%3.9% conv. - **clorela y espirulina orgnica**14K/yr-24.4%1.9% conv. - **chorella/spirulina tablets organic**14K/yr-23.0%5.4% conv. - **organic chlorella spirulina tablets**4K/yr-18.1%12.1% conv. - **spirulina and chlorella tablets**4K/yr+5.7%8.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/spirulina-and-chlorella-capsules/search-terms)
## **Top spirulina and 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.
0%10%$67K20%$135K30%$202K40%$270K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Micro Ingredients Organic Spirulina Chlorella Tablets 720 Count | 4 Month Supply | 50/50 Algae Blend | Broken Cell Wall | Non-GMO Filler Free**Micro Ingredients**$29.04**4.6★9,238 rev](https://www.amazon.com/dp/B01DPW5JSW) [2**Micro Ingredients Organic Spirulina Chlorella Mini Tablets 2 500 Tablets (8 Month Supply) | 50/50 Algae Blend | No Fillers Non-GMO**Micro Ingredients**$26.72**4.7★478 rev](https://www.amazon.com/dp/B0F3GG32FF) [3**Chlorella Spirulina Powder Capsules 3000 mg of BMAA Free Purest Blue Green Algae - Best Natural Detox Raw Vegan Vitamins Protein Green Superfood - Made in USA**HCL HERBAL CODE LABS**$23.17**4.7★2,336 rev](https://www.amazon.com/dp/B076VWP277) [4**Snap Supplements USDA Organic Spirulina and Chlorella 120 Vegan Capsules**Snap Supplements**$20.89**4.6★798 rev](https://www.amazon.com/dp/B0B8F1LQVP) [5**Carlyle Organic Chlorella Spirulina Tablets | 1300 Count | 50/50 Blend**Carlyle**$19.61**4.6★522 rev](https://www.amazon.com/dp/B0C6YNWB5P)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Good Natured Premium Spirulina and Chlorella Capsules 1 250 Tablets Non-GMO Vegan Chlorella Tablets Sunlight Grown Cracked Cell Wall High Protein Heavy Metal Detox**Good Natured**$30.04**701 rev4mo ago](https://www.amazon.com/dp/B0GTWGHPQG) [**Nutricost Organic Spirulina + Chlorella (3 000mg) 180 Tablets - USDA Organic 1 500mg Spirulina 1 500mg Chlorella Vegan GMO-Free Gluten-Free 30 Servings**Nutricost**$17.54**22 rev10mo ago](https://www.amazon.com/dp/B0FSG87FQD) [**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**$22.30**146 rev10mo ago](https://www.amazon.com/dp/B0FQMYP78T) [**Snap Supplements Gut Health Supplement & Organic Spirulina Chlorella Bundle**Snap Supplements**$39.75**669 rev1y ago](https://www.amazon.com/dp/B0F55TKHBB) [**Micro Ingredients Organic Spirulina Chlorella Mini Tablets 2 500 Tablets (8 Month Supply) | 50/50 Algae Blend | No Fillers Non-GMO**Micro Ingredients**$26.72**478 rev1y ago](https://www.amazon.com/dp/B0F3GG32FF)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Good Natured Premium Spirulina and Chlorella Capsules 1 250 Tablets Non-GMO Vegan Chlorella Tablets Sunlight Grown Cracked Cell Wall High Protein Heavy Metal Detox**Good Natured**$30.04**4.5★**▲ 252%**](https://www.amazon.com/dp/B0GTWGHPQG) [**Nutricost Organic Spirulina + Chlorella (3 000mg) 180 Tablets - USDA Organic 1 500mg Spirulina 1 500mg Chlorella Vegan GMO-Free Gluten-Free 30 Servings**Nutricost**$17.54**4.6★**▲ 160%**](https://www.amazon.com/dp/B0FSG87FQD) [**Sunlit Best Chlorella Spirulina Tablets - Organic USDA Premium Spirulinas and Chlorella Capsules 500 Pills - Chlorellas Natural Superfood with Spirulina Algae Enzymes Chlorophyll & Vegan Protein**Sunlit Best Green Organics**$17.92**4.6★**▲ 76%**](https://www.amazon.com/dp/B096N13J3H) [**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**$22.30**4.6★**▲ 57%**](https://www.amazon.com/dp/B0FQMYP78T) [**Micro Ingredients Organic Spirulina Chlorella Mini Tablets 2 500 Tablets (8 Month Supply) | 50/50 Algae Blend | No Fillers Non-GMO**Micro Ingredients**$26.72**4.7★**▲ 37%**](https://www.amazon.com/dp/B0F3GG32FF)
**~~View all trending →~~**
## **What buyers say about spirulina and chlorella capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Great quality, clean ingredients”*
**Value For Money**8%
*“Worth the price”*
**Energy Level**7%
*“boost my energy”*
**Vitamin**5%
*“Fantastic supplement”*
**Efficiency**5%
*“Works great”*
**Ease Of Use**5%
*“These tablets are easy to take”*
**Nutritional Content**4%
*“Good supplements”*
**Vegan/Organic**3%
*“I loved that is organic”*
**Detoxification**3%
*“Great detox”*
**Advertised Vs Actual Product**3%
*“Excellent product, as advertised”*
### **What buyers complain about **
**Dosage**9%
*“Too many pills to take”*
**Acid Regulator/Stomach Ache Relief**7%
*“Made me very sick to my stomach”*
**Functionality-Overall**7%
*“Didn't work”*
**Value For Money**6%
*“What is a disappointment is the amount of product for the cost”*
**Side Effects**6%
*“Made me very sick to my stomach”*
**Size-Overall**6%
*“And the tabs are small”*
**Smell**5%
*“dont smell as bonus”*
**Ease Of Chewing/Swallowing**4%
*“difficulty swallowing”*
**Advertised Vs Actual Product**4%
*“I still have mucus which it was advertised to clear up”*
**Allergies**3%
*“Adverse reaction”*
### **Top return reasons **
**Contamination**50%
**Strength**50%
## **Common questions**
- **Is spirulina and chlorella capsules profitable to sell on Amazon United States?**
- The niche generates $674K/yr across 15 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.9%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the spirulina and chlorella capsules niche?**
- 12 brands and 42 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in spirulina and chlorella capsules?**
- Top complaints mined from reviews: Dosage, Acid Regulator/Stomach Ache Relief, Functionality-Overall. The return rate is 0.0%.
- **When does demand for spirulina and chlorella capsules peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the spirulina and chlorella capsules niche?**
- Listings span $11.15–$45.38; the average listing price is $24.87 (sweet spot $15–$100). The average incumbent carries 1,553 reviews — the moat a new listing must climb.
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