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Phosphatidylserine

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

Flapen Score

49
Skip it
Market size 25Growth 17Conversion 95Competition 19Returns 100Price range 72Avg price 80Brand share 47Review moat 69Quality gap 48
This niche Category average

Is Phosphatidylserine profitable on Amazon?

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.

Phosphatidylserine: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -15.0% over the last 90 days and 12.2% of searches end in a purchase.

£101K

revenue / yr

Units sold / yr5K
Search volume / yr-15.0%49K
Conversion rate12.2%
Avg price£17.03

Who owns the niche?

The top 5 brands hold 77% of demand, so 23% of the market is open.

23%

open market share

Brands · sellers11 · 17
Top-5 product click share77%
Open market23%
Avg brand age58 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.

0/100

page quality · 11 products

Sponsored placement82%
New entrants (1y)3· 1 succeeded
Avg rating4.5★
Avg reviews750

Top Phosphatidylserine products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

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

£0£15K£30K£45K£60K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 rising

Sellers

17

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%)

Phosphatidylserine demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume49KCVR12.2%Products11Brands11Top 5 Brands77%OOS Rate8.5%Rating4.5★Reviews750Avg BSR#1,317
1K750Black Friday '25Spike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26

What reviews say buyers love and hate about Phosphatidylserine

What buyers mention most, as a share of all reviews.

What buyers love

82% of reviews
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

What buyers complain about

78% of reviews
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

Common Phosphatidylserine questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Phosphatidylserine 49/100 on Amazon United Kingdom — Skip it. The niche generates £101K/yr across 11 tracked products. 1 of 3 products launched in the last 360 days are still selling. Search demand moved -15.0% over the last 90 days.
Phosphatidylserine buyers on Amazon United Kingdom complain most about Dosage, Quality-Overall, Magnesium, the themes mined from the niche's reviews. Its return rate is 0.0%.