Is pure marine collagen profitable to sell on Amazon United Kingdom?

The niche generates £63K/yr across 5 tracked products. 90-day search growth is -43.6%. Flapen's verdict: Skip it (33/100).

How competitive is the pure marine collagen niche?

3 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in pure marine collagen?

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

What does it cost to enter the pure marine collagen niche?

Listings span £8.23–£16.05; the average listing price is £12.88 (sweet spot $15–$100). The average incumbent carries 7,925 reviews — the moat a new listing must climb.

pure marine collagen

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible15.6%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good£12.88

avg listing price — sweet spot $15–$100

Review moat

Bad7,925.2

avg incumbent reviews — the moat a new listing must climb

Market size

Bad£63K

£63K/yr · 32K searches

Price range

Bad£8.23–£16.05

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

Growth

Bad-43.6%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, pure marine collagen is a £63K/yr Amazon United Kingdom market (32K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 33/100.

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

pure marine collagen market data

Units sold / yr: 4K–5K; avg 750–1,000/product
Revenue / yr: £52K–£64K; units × avg price
Conversion rate: 15.6%
Avg BSR: #25
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 41 months
Avg seller age: 189 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

NEW LEAF PRODUCTS60%
WeightWorld36%
Nutravita4%

Demand

Weekly Amazon search volume, last 42 weeks — -43.6% search growth over the last 90 days.

Open Trend

Top pure marine collagen search terms

pure marine collagen11K/yr -33.0%13.8% conv.
new leaf marine collagen9K/yr -62.7%14.4% conv.
pure marine collagen capsules4K/yr -26.9%17.6% conv.
100% marine collagen3K/yr -28.8%12.9% conv.
new leaf collagen4K/yr -50.3%13.3% conv.

All search terms

Top pure marine collagen 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 5 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Pure Marine Collagen 100% Marine Collagen Type 1 Hydrolysed Collagen Peptides Enhanced with Hyaluronic Acid & Vitamin C -Essential Amino Acids - Collagen Supplements for Women and Men 60 Capsules

NEW LEAF PRODUCTS£8.234.4★6,673 rev

Pure Marine Collagen Capsules - 120 Capsules - 1200mg - 2 Months Supply

WeightWorld£14.984.5★15,310 rev

Pure Marine Collagen 100% Marine Collagen Type 1 1500mg - 180 Capusles Hydrolysed Collagen Peptides Enhanced with Hyaluronic Acid & Vitamin C High Strength Collagen Supplements for Women and Men

NEW LEAF PRODUCTS£16.054.4★6,673 rev

WeightWorld Marine Collagen Capsules 1455mg | 120 Capsules

WeightWorld£14.254.4★10,219 rev

Nutravita Pure Marine Collagen 1200mg Bioavailable Hydrolysed Collagen Peptides - 120 Collagen Tablets - Collagen Supplements for Women - Alternative to Marine Collagen Capsules

Nutravita£10.914.3★751 rev

Newest

by launch date

Nutravita Pure Marine Collagen 1200mg Bioavailable Hydrolysed Collagen Peptides - 120 Collagen Tablets - Collagen Supplements for Women - Alternative to Marine Collagen Capsules

Nutravita£10.91751 rev

2y ago

Pure Marine Collagen 100% Marine Collagen Type 1 1500mg - 180 Capusles Hydrolysed Collagen Peptides Enhanced with Hyaluronic Acid & Vitamin C High Strength Collagen Supplements for Women and Men

NEW LEAF PRODUCTS£16.056,673 rev

3y ago

Pure Marine Collagen 100% Marine Collagen Type 1 Hydrolysed Collagen Peptides Enhanced with Hyaluronic Acid & Vitamin C -Essential Amino Acids - Collagen Supplements for Women and Men 60 Capsules

NEW LEAF PRODUCTS£8.236,673 rev

5y ago

Pure Marine Collagen Capsules - 120 Capsules - 1200mg - 2 Months Supply

WeightWorld£14.9815,310 rev

8y ago

WeightWorld Marine Collagen Capsules 1455mg | 120 Capsules

WeightWorld£14.2510,219 rev

8y ago

What buyers say about pure marine collagen

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

What buyers love

Quality-Overall26%

“Always buy, great and reliable”

Value For Money13%

“Great value for money”

Skin Health6%

“Skin benefits”

Ease Of Chewing/Swallowing6%

“Easy on the stomach”

Advertised Vs Actual Product6%

“As advertised”

Ease Of Use5%

“Easier to use than the powdered form and pleasing results”

Joint Pain4%

“my joints definitely seem improved”

Calcium4%

“Best collagen”

Hair Growth4%

“Hair improvement”

Side Effects3%

“There is zero side effects”

What buyers complain about

Side Effects12%

“Gave me stomach problems”

Size-Overall9%

“Very big tablets”

Functionality-Overall6%

“Don't work”

Taste-Overall5%

“They are tasteless”

Ease Of Chewing/Swallowing5%

“Only thing is they are a bit big for me to swallow”

Allergies5%

“cannot take it because it give me a skin rash”

Acid Regulator/Stomach Ache Relief5%

“Tummy upsets”

Value For Money4%

“Price v competitive ask me in 6 months time as to effective”

Quality-Overall3%

“Not Very Good”

Skin Health2%

“however the actual dose of collagen is so low that it wont actually make any difference to your skin”

Common questions

Is pure marine collagen profitable to sell on Amazon United Kingdom?: The niche generates £63K/yr across 5 tracked products. 90-day search growth is -43.6%. Flapen's verdict: Skip it (33/100).
How competitive is the pure marine collagen niche?: 3 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in pure marine collagen?: Top complaints mined from reviews: Side Effects, Size-Overall, Functionality-Overall. The return rate is 0.0%.
What does it cost to enter the pure marine collagen niche?: Listings span £8.23–£16.05; the average listing price is £12.88 (sweet spot $15–$100). The average incumbent carries 7,925 reviews — the moat a new listing must climb.