Is phosphatidylserine profitable to sell on Amazon United Kingdom?

The niche generates £101K/yr across 11 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -15.0%. Flapen's verdict: Skip it (49/100).

How competitive is the phosphatidylserine niche?

11 brands and 17 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 77% of demand.

What do buyers complain about in phosphatidylserine?

Top complaints mined from reviews: Dosage, Quality-Overall, Magnesium. The return rate is 0.0%.

What does it cost to enter the phosphatidylserine niche?

Listings span £7.57–£34.36; the average listing price is £17.03 (sweet spot $15–$100). The average incumbent carries 750 reviews — the moat a new listing must climb.

phosphatidylserine

Skip it

Soft demand (-15.0% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible12.2%

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

Avg price

Great£17.03

avg listing price — sweet spot $15–$100

Price range

Good£7.57–£34.36

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

Review moat

Good750.27

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay77%

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

Market size

Okay£101K

£101K/yr · 49K searches

Competition

Bad77%

top-5 click share — a locked-up shelf

Growth

Bad-15.0%

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

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, phosphatidylserine is a £101K/yr Amazon United Kingdom market (49K searches/yr). The top 5 brands hold 77% of demand. Verdict: Skip it — 49/100.

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

phosphatidylserine market data

Units sold / yr: 4K–5K; avg 100–250/product
Revenue / yr: £68K–£85K; units × avg price
Conversion rate: 12.2%
Avg BSR: #1,317
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 8.5%
Avg brand age: 58 months
Avg seller age: 187 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 rising

Sellers

Top-5 brand share

77%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

18%

Vinco Supplements45%
Double Wood Supplements10%
ALZURO LABS8%
Time Health7%
NutriMali6%
DEAL SUPPLEMENT5%
Open — no brand owns it (5 brands, 18%)

Demand

Weekly Amazon search volume, last 38 weeks — -15.0% search growth over the last 90 days.

Open Trend

Top phosphatidylserine 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Vinco Phosphatidylserine Supplement - 120 High Strength Phosphatidylserine Capsules - 300mg Per Serving - Non GMO & Gluten Free (White)

Vinco Supplements£13.514.4★124 rev

Double Wood Phosphatidylserine Supplement | 90 High Strength Phosphatidylserine Capsules - 300mg per Serving | Non-GMO & Gluten Free

Double Wood Supplements£29.884.5★5,952 rev

ALZURO LABS£21.514.7★122 rev

Phosphatidylserine - 160mg per Capsule - Naturally Derived from Sunflower Seeds - Premium Brand SunPS - Soy Free - Vegan - Zero Additives - Pullulan (60 Capsules)

Time Health£17.144.4★123 rev

Phosphatidylserine Capsules | High Strength Formula - 200mg | 90 Vegan Capsules | Food Supplement Non GMO | By NutriMali

NutriMali£11.384.7★6 rev

Newest

by launch date

Phosphatidylserine Capsules | High Strength Formula - 200mg | 90 Vegan Capsules | Food Supplement Non GMO | By NutriMali

NutriMali£11.386 rev

3mo ago

Vinco Phosphatidylserine Supplement - 120 High Strength Phosphatidylserine Capsules - 300mg Per Serving - Non GMO & Gluten Free (White)

Vinco Supplements£13.51124 rev

6mo ago

Nutrality Phosphatidylserine 300mg Nootropic Supplement 60 Vegan Capsules

Nutrality£9.9536 rev

9mo ago

ALZURO LABS£21.51122 rev

1y ago

Fitimins£10.0817 rev

1y ago

What buyers say about phosphatidylserine

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

What buyers love

Quality-Overall22%

“Well manufactured capsules”

Sleep Quality13%

“providing me with better sleep”

Vitamin10%

“Brilliant value supplement”

Focus Enhancement8%

“Been using this as part of a daily stack and its a decent addition if youre looking to support focus and memory”

Stress/Anxiety8%

“I like this product, and absolutely see the benefits for mood regulation and stress”

Locally Manufactured6%

“is made in the UK”

Heart Health5%

“For health conscious people”

Ease Of Chewing/Swallowing4%

“Ease of swallowing: The capsules are relatively small”

Value For Money3%

“This is cheaper than my usual buy”

Side Effects3%

“Good value and works with no side effects”

What buyers complain about

Dosage26%

“I want to try a lower dose so will have to try a different product as these can't be split”

Quality-Overall12%

“Poor quality”

Magnesium8%

“the only thing I noticed was that I missed the magnesium when I tried the PD alone”

Sleep Quality8%

“Otherwise taking later - disturbing my sleep”

Focus Enhancement8%

“Nowadays we had so many distractions and its difficult to always manage to focus and perform”

Strength5%

“Reduced strength”

Size-Overall4%

“The capsules are quite large”

Advertised Vs Actual Product4%

“the listing is incorrect”

Value For Money3%

“Not worth it”

Acid Regulator/Stomach Ache Relief1%

“I do have a sensitive stomach”

Common questions

Is phosphatidylserine profitable to sell on Amazon United Kingdom?: The niche generates £101K/yr across 11 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -15.0%. Flapen's verdict: Skip it (49/100).
How competitive is the phosphatidylserine niche?: 11 brands and 17 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 77% of demand.
What do buyers complain about in phosphatidylserine?: Top complaints mined from reviews: Dosage, Quality-Overall, Magnesium. The return rate is 0.0%.
What does it cost to enter the phosphatidylserine niche?: Listings span £7.57–£34.36; the average listing price is £17.03 (sweet spot $15–$100). The average incumbent carries 750 reviews — the moat a new listing must climb.