Skip to content

Probiotics

Maybe

An estimated 0.1% of orders come back. But demand is soft, at -12.1% this quarter, so Probiotics is a Maybe.

Flapen Score
62
62 / 100
Top 6% of 2,035 Health & Personal Care niches · +14 vs the category median of 48
Market size
£2.7M/yr2.3M searches / yr
90-day growth
-12.1%search demand this quarter
Competition
53%top-5 click share · 14 brands · 102 sellers

Flapen Score

Probiotics against its category

The dotted line is the Health & Personal Care average. Past it, Probiotics is stronger. Inside it, weaker.

62Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Probiotics market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Probiotics 2.3M times last year and spent an estimated £2.7M. The top 5 brands take 69% of clicks. Flapen scores it 62 out of 100, a Maybe.

01 · Demand

An estimated 8.7% of those searches ended in a purchase.

Shoppers searched for this 2.3M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 8.7% of those searches ended in a purchase. Searches in the last 90 days moved -12.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated £2.7M a year.

Searches, last 12 months
2.3M
Growth, 90 days vs prior 90
-12.1%
Conversion, latest week
8.7%
Market size, estimated
£2.7Ma year
Peak month
January1.3× the quietest month
Top search term
probiotics726K searches a year

02 · Price

A sale here is worth £13.34.

Listings sell for £13.34 on average, from £4.14 to £52.39. Amazon reports units sold in ranges. This niche sold 200K to 250K a year. The average listing sells 12,500 to 15,000 of them. At £13.34 that is £167K to £200K a year per listing.

Average price
£13.34under the $15 to $100 sweet spot
Price range
£4.14–£52.39
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
200K–250K
Units per listing a year
12,500–15,000
Revenue per listing a year
£167K–£200K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is reviews.

84% of listings pay for placement with sponsored ads. 96% ship with Prime. On an average day, 5.0% of listings are out of stock. The average listing ranks #45 within Bacterial Cultures. It carries 2,345 reviews at 4.54 stars, so a new listing needs social proof before a better product.

Sponsored listings
84%
Prime listings
96%
Out of stock, average day
5.0%
Average rank
#45in Bacterial Cultures
Average rating
4.54 starsAmazon United Kingdom average 4.36 stars
Average reviews
2,345per listing
Listings tracked
25

04 · Newcomers

0 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 52 months on average, so the names here are settling in.

Launched, last 12 months
1
Successful launches
0Amazon's first-year sales bar
Average brand age
52 months

Products

Top Probiotics products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 53% of clicks. Leaders hold, but buyers still shop past 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

Est. top-5 brand share

69%

Top 20: 100%

Est. top-5 click share

53%

Top 20: 95%

Open market

25%

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

Demand

Probiotics search demand

Weekly searches over the year, seasonality beneath. Pick a range.

50K30KSpike '25Prime Day '25Prime Day '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Probiotics search terms shoppers use

The exact words shoppers type, with estimated 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

Reviews and returns

What reviews say buyers love and hate about Probiotics

We read the reviews and the return reasons for every product selling here.

19%of positive reviews mention “Quality-Overall”
18%of negative reviews mention “Functionality-Overall”
0.1%of orders come back
“Didn't work for me”
A buyer, on “Functionality-Overall”18% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

15 topics

NegativePositive

FAQ

Common Probiotics questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data