---
title: "Marine Collagen Capsules — $6K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/marine-collagen-capsules"
last_updated: "2026-08-12T13:34:56.054Z"
locale: en
meta:
description: "Amazon product research for marine collagen capsules: $6K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for marine collagen capsules: $6K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Marine Collagen Capsules — $6K/mo Amazon US Product Research"
---
# **Marine Collagen Capsules**
**Worth a look**
Shows low returns (0.0%), but a small market ($68K/yr) keeps it on the watch list.
Market size 17Growth 19Conversion 55Competition 60Returns 100Price range 81Avg price 95Brand share 58Review moat 25Quality gap 48
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$24.76**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.62–$49.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****4.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,252.24**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-12.2%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$68K**
$68K/yr · 60K searches
## **Is marine collagen capsules profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, marine collagen capsules is a $68K/yr Amazon United States market (60K searches/yr). The top 5 brands hold 70% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **marine collagen capsules market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$74K–$99K**
- units × avg price
- **Conversion rate**
- **4.6%**
- **Avg BSR**
- **#536**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **8.0%**
- **Avg brand age**
- **66 months**
- **Avg seller age**
- **156 days**
## **Competition: brands, sellers & click share**
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▲rising
**Sellers**
**617**
**Top-5 brand share**
**70%**
Top 20: 99%
**Top-5 click share**
**49%**
Top 20: 93%
**Open market**
**26%**
- NeoCell33% - Youtheory15% - C COLLAZING9% - CORREXIKO7% - New Leaf Products6% - Codeage4%
## **marine collagen capsules demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -12.2% search growth over the last 90 days.
1K600Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/marine-collagen-capsules/trend)
## **Top marine collagen capsules search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **marine collagen capsules**31K/yr-11.6%4.0% conv. - **marine collagen peptides capsules**8K/yr+18.4%5.3% conv. - **neocell marine collagen**9K/yr-19.7%5.3% conv. - **marine collagen pills**6K/yr-2.7%4.2% conv. - **neocell marine collagen peptides**3K/yr-11.4%7.2% conv. - **collagen marine capsules**4K/yr-69.0%3.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/marine-collagen-capsules/search-terms)
## **Top marine collagen capsules products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%$3K8%$5K12%$8K16%$11K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Youtheory Marine Collagen Tablets - 2 500 mg Fish-Sourced Collagen Peptides- with Vitamins A C E B6 & B12 - Supports Joint & Nail Health* - Highly Absorbable - 290 Tablets (58-Day Supply)**Youtheory**$18.55**4.4★1,989 rev](https://www.amazon.com/dp/B006VAZZJO) [2**NeoCell Marine Collagen Peptides Capsules | 120 Pills | with Hyaluronic Acid | Plus Vitamin C | for Women and Men**NeoCell**$16.14**4.5★3,757 rev](https://www.amazon.com/dp/B001FFCG38) [3**NeoCell Marine Collagen Peptides Capsules | 300 Pills**NeoCell**$20.10**4.5★155 rev](https://www.amazon.com/dp/B0F5BTFB5M) [4**C COLLAZING - Alaskan Wild-Caught Marine Collagen Peptides with Hyaluronic Acid & Vitamin C - Supports Skin Hair Nails Joints & Bones - Type 1 & 3 Collagen for Women & Men - 120 Powder Capsules**C COLLAZING**$29.71**4.5★650 rev](https://www.amazon.com/dp/B07GYM1VR2) [5**NeoCell Marine Collagen Peptides Supplement | 180 Caplets**NeoCell**$15.01**4.4★159 rev](https://www.amazon.com/dp/B0F5BTYJ76)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vital Proteins Enhanced Collagen Complex Capsules with BioCell Collagen - Supports Skin Elasticity Joint Health and Helps Reduce Fine Lines & Wrinkles (1) - 60 Count**Vital Proteins**$38.51**172 rev9mo ago](https://www.amazon.com/dp/B0FKFQZ4X2) [**Cevitol Marine Collagen Peptides - Hydrolyzed Ultra-fine Collagen Powder for Women & Men Hyaluronic Acid Biotin Vitamin C for Skin Hair Nails Joints Non-GMO Unflavored Easily Dissolved 16oz**Cevitol**$42.44**1,217 rev1y ago](https://www.amazon.com/dp/B0F6YMQPTF) [**SIGNILIFE Multi Collagen Peptides for Women & Men Hydrolyzed Collagen Peptides-Type I II III V X - with Hyaluronic Acid Vitamin C Biotin Supports Skin Hair Nail Non-GMO 280 Softgels**SIGNILIFE**$23.77**814 rev1y ago](https://www.amazon.com/dp/B0F63BXGQQ) [**NeoCell Marine Collagen Peptides Capsules | 300 Pills**NeoCell**$20.10**155 rev1y ago](https://www.amazon.com/dp/B0F5BTFB5M) [**NeoCell Marine Collagen Peptides Supplement | 180 Caplets**NeoCell**$15.01**159 rev1y ago](https://www.amazon.com/dp/B0F5BTYJ76)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pure Marine Collagen Supplements for Women & Men - with Hyaluronic Acid Vitamin C & Biotin - Collagen Peptides Hydrolyzed Collagen for Hair Skin & Nails - 60 Capsules by New Leaf UK Made**New Leaf Products**$13.99**4.4★**▲ 300%**](https://www.amazon.com/dp/B091V2W4Z2) [**Cevitol Marine Collagen Peptides - Hydrolyzed Ultra-fine Collagen Powder for Women & Men Hyaluronic Acid Biotin Vitamin C for Skin Hair Nails Joints Non-GMO Unflavored Easily Dissolved 16oz**Cevitol**$42.44**4.6★**▲ 146%**](https://www.amazon.com/dp/B0F6YMQPTF) [**GOLDOPUS Marine Collagen Peptides Capsules with Hyaluronic Acid Coenzyme Q10 Vitamin C - Preserve Beauty and Youth - Promote Firm Skin Strong Nails&Hair Healthy Joints 90 Capsules 1 Month Supply**GOLDOPUS**$49.71**4.5★**▲ 111%**](https://www.amazon.com/dp/B0BZBFWDM3) [**SIGNILIFE Multi Collagen Peptides for Women & Men Hydrolyzed Collagen Peptides-Type I II III V X - with Hyaluronic Acid Vitamin C Biotin Supports Skin Hair Nail Non-GMO 280 Softgels**SIGNILIFE**$23.77**4.5★**▲ 101%**](https://www.amazon.com/dp/B0F63BXGQQ) [**Vital Proteins Enhanced Collagen Complex Capsules with BioCell Collagen - Supports Skin Elasticity Joint Health and Helps Reduce Fine Lines & Wrinkles (1) - 60 Count**Vital Proteins**$38.51**4.7★**▲ 75%**](https://www.amazon.com/dp/B0FKFQZ4X2)
**~~View all trending →~~**
## **What reviews say buyers love and hate about marine collagen capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“the price is reasonable for the quality”*
**Joint Pain**7%
*“Helps my skin and joint pain”*
**Value For Money**7%
*“Good value for the money”*
**Calcium**6%
*“I remembered my old Chemistry professor in college telling us we needed Collagen to break down the Calcium so it would evenly distribute throughout our body”*
**Skin Health**6%
*“I have seen improvement in my skin”*
**Vitamin**6%
*“good vitamin”*
**Ease Of Use**4%
*“Much More Convenient”*
**Ease Of Chewing/Swallowing**4%
*“I have not problem swallowing with a gulp of water”*
**Hair Growth**4%
*“My hair is stronger”*
**Efficiency**3%
*“Effective”*
### **What buyers complain about **
**Taste-Overall**9%
*“Taste weird”*
**Value For Money**7%
*“Overpriced”*
**Dosage**6%
*“the recommended dosage is covered up which is so stupid”*
**Side Effects**6%
*“Makes me sick”*
**Functionality-Overall**6%
*“Not very effective”*
**Size-Overall**5%
*“Small bottle”*
**Allergies**5%
*“Skin rash and hives”*
**Acid Regulator/Stomach Ache Relief**3%
*“Horrible Stomach Pain”*
**Advertised Vs Actual Product**3%
*“Is I think this is not the same any more”*
**Ease Of Chewing/Swallowing**3%
*“Hard to swallow”*
### **Top return reasons **
**Value For Money**17%
**Acid Regulator/Stomach Ache Relief**13%
**Side Effects**13%
**Ingredients-Overall**8%
**Flavor**8%
**Vitamin**8%
**Certifications**8%
**Software/Application**8%
**Joint Pain**8%
**Dosage**8%
## **Common marine collagen capsules questions**
- **Is marine collagen capsules profitable to sell on Amazon United States?**
- The niche generates $68K/yr across 29 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.2%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the marine collagen capsules niche?**
- 21 brands and 617 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in marine collagen capsules?**
- Top complaints mined from reviews: Taste-Overall, Value For Money, Dosage. The return rate is 0.0%.
- **When does demand for marine collagen capsules peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the marine collagen capsules niche?**
- Listings span $7.62–$49.71; the average listing price is $24.76 (sweet spot $15–$100). The average incumbent carries 4,252 reviews — the moat a new listing must climb.
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