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Probiotics

Probiotics shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

62
Worth a look
Market size 96Growth 19Conversion 82Competition 54Returns 100Price range 77Avg price 61Brand share 59Review moat 42Quality gap 35
This niche Category average

Is Probiotics profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Probiotics is a £2.7M/yr Amazon United Kingdom market (2.3M searches/yr). The top 5 brands hold 69% of demand. Verdict: Worth a look — 62/100.

Probiotics: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -12.1% over the last 90 days and 8.7% of searches end in a purchase.

£2.7M

revenue / yr

Units sold / yr250K
Search volume / yr-12.1%2.3M
Conversion rate8.7%
Avg price£13.34

Who owns the niche?

The top 5 brands hold 69% of demand, so 31% of the market is open.

31%

open market share

Brands · sellers14 · 102
Top-5 product click share53%
Open market31%
Avg brand age52 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 · 25 products

Sponsored placement84%
New entrants (1y)1· 0 succeeded
Avg rating4.5★
Avg reviews2,345

Top Probiotics 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 take 53% of clicks — established leaders, but buyers still shop beyond them.

£0£133K£265K£398K£530K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

14 rising

Sellers

102

Top-5 brand share

69%

Top 20: 100%

Top-5 click share

53%

Top 20: 95%

Open market

25%

  • Bio-Kult27%
  • Optibac Probiotics16%
  • Free Soul9%
  • NEW LEAF PRODUCTS9%
  • Zipvit8%
  • Wellgard6%

Probiotics demand & seasonality

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

Volume2.3MCVR8.7%Products25Brands14Top 5 Brands69%OOS Rate5.0%Rating4.5★Reviews2,345Avg BSR#45
50K30KSpike '25Prime Day '25Prime Day '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top Probiotics search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • probiotics726K/yr
  • probiotics for women331K/yr
  • optibac probiotics188K/yr
  • gut health194K/yr
  • probiotics for gut health210K/yr
  • probiotic109K/yr
  • optibac94K/yr
  • gut health supplements68K/yr
  • probiotics for men42K/yr
  • bio kult52K/yr

What reviews say buyers love and hate about Probiotics

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

What buyers love

76% of reviews
Quality-Overall19%

Excellent product

Value For Money14%

Excellent price

Efficiency9%

Excellent and effective

Acid Regulator/Stomach Ache Relief8%

No more bloating

Ease Of Chewing/Swallowing6%

Easy to swallow

What buyers complain about

67% of reviews
Functionality-Overall18%

Didn't work for me

Acid Regulator/Stomach Ache Relief11%

experience stomach pain

Side Effects11%

was nauseaus first day

Value For Money7%

Waste of money for me :-

Regulates Digestion5%

I was having digestive issues after taking a course of cholesterol reducing medication

Common Probiotics questions

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

Flapen scores Probiotics 62/100 on Amazon United Kingdom — Worth a look. The niche generates £2.7M/yr across 25 tracked products. 0 of 1 products launched in the last 360 days are still selling. Search demand moved -12.1% over the last 90 days.
Search demand for Probiotics on Amazon United Kingdom is steady year-round — the busiest month runs 1.3× the quietest.