Marine Collagen Capsules
Worth a lookShows low returns (0.0%), but a small market ($68K/yr) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$24.76avg listing price — sweet spot $15–$100
Price range
Great$7.62–$49.71cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Brand share
Good70%top-5 brand share — brands hold most of the demand
Conversion
Good4.6%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad4,252.24avg 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
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.No pronounced peak months · busiest ÷ quietest = 1.3×
Top marine collagen capsules search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- marine collagen capsules31K/yr
- marine collagen peptides capsules8K/yr
- neocell marine collagen9K/yr
- marine collagen pills6K/yr
- neocell marine collagen peptides3K/yr
- collagen marine capsules4K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$18.554.4★1,989 rev
NeoCell Marine Collagen Peptides Capsules | 120 Pills | with Hyaluronic Acid | Plus Vitamin C | for Women and Men
NeoCell$16.144.5★3,757 rev
NeoCell Marine Collagen Peptides Capsules | 300 Pills
NeoCell$20.104.5★155 rev
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$29.714.5★650 rev
NeoCell Marine Collagen Peptides Supplement | 180 Caplets
NeoCell$15.014.4★159 rev
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$38.51172 rev
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$42.441,217 rev
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$23.77814 rev
NeoCell Marine Collagen Peptides Capsules | 300 Pills
NeoCell$20.10155 rev
NeoCell Marine Collagen Peptides Supplement | 180 Caplets
NeoCell$15.01159 rev
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$13.994.4★
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$42.444.6★
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$49.714.5★
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$23.774.5★
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$38.514.7★
What reviews say buyers love and hate about marine collagen capsules
What buyers praise and complain about, mined from review topics.What buyers love
“the price is reasonable for the quality”
“Helps my skin and joint pain”
“Good value for the money”
“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”
“I have seen improvement in my skin”
“good vitamin”
“Much More Convenient”
“I have not problem swallowing with a gulp of water”
“My hair is stronger”
“Effective”
What buyers complain about
“Taste weird”
“Overpriced”
“the recommended dosage is covered up which is so stupid”
“Makes me sick”
“Not very effective”
“Small bottle”
“Skin rash and hives”
“Horrible Stomach Pain”
“Is I think this is not the same any more”
“Hard to swallow”
Top return reasons
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.