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50

bio cultures complex probiotics

Worth a look

Shows low returns (0.0%), but a small market ($41K/yr) keeps it on the watch list.

Market size 10Growth 58Conversion 95Competition 21Returns 100Price range 71Avg price 61Brand share 41Review moat 39Quality gap 48

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible12.6%

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

Price range

Good£7.49–£33.09

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

Avg price

Good£13.35

avg listing price — sweet spot $15–$100

Growth

Good+32.4%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay80%

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

Review moat

Okay2,623.87

avg incumbent reviews — the moat a new listing must climb

Competition

Bad75%

top-5 click share — a locked-up shelf

Market size

Bad£41K

£41K/yr · 24K searches

According to Flapen's Amazon United Kingdom niche tracking, bio cultures complex probiotics is a £41K/yr Amazon United Kingdom market (24K searches/yr). The top 5 brands hold 80% of demand. Verdict: Worth a look — 50/100.

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

bio cultures complex probiotics market data

Units sold / yr
4K–5K
avg 250–500/product
Revenue / yr
£53K–£67K
units × avg price
Conversion rate
12.6%
Avg BSR
#91
Page quality
0%
Prime
93%
Sponsored
87%
Out of stock
5.1%
Avg brand age
72 months
Avg seller age
179 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 rising

Sellers

51

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

14%

  • Nu U Nutrition31%
  • NEW LEAF PRODUCTS26%
  • Nutravita9%
  • Oxford Origins7%
  • SuperSelf7%
  • A to Z Pure Health5%
  • Open — no brand owns it (6 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +32.4% search growth over the last 90 days.
1K600Spike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Top bio cultures complex probiotics search terms

  • bio cultures complex probiotics15K/yr
  • bio cultures complex6K/yr
  • bio cultures4K/yr
All search terms

Top bio cultures complex probiotics 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.

0%10%£4K20%£8K30%£12K40%£16K1001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 15 tracked products in this niche — three views at once, no toggling.

What buyers say about bio cultures complex probiotics

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

What buyers love

Value For Money17%

“The 120 capsule bottle is also great value”

Quality-Overall11%

“Im very happy with Nutravita, which is a very well established and reputable brand”

Regulates Digestion8%

“Overall, it is a comprehensive, high-strength symbiotic supplement that is practical for daily use and designed to support both gut health and digestion effectively”

Ease Of Chewing/Swallowing8%

“The capsules are a comfortable size to swallow”

Nutritional Content7%

“Good probiotic”

Advertised Vs Actual Product6%

“as described”

Acid Regulator/Stomach Ache Relief6%

“these helped settle my stomach issues down so I was able to go about my day without worrying where the closest toilet was”

Vegan/Organic5%

“The capsules are vegan-friendly”

Ease Of Use3%

“is convenient for everyday use”

Vitamin2%

“Excellent vitamins and probiotic”

What buyers complain about

Functionality-Overall17%

“Did absolutely nothing”

Nutritional Content9%

“Not a good probiotic”

Regulates Digestion8%

“constipated to diarrhoea”

Value For Money6%

“Can be expensive”

Ease Of Chewing/Swallowing6%

“Extremely large and difficult to swallow”

Advertised Vs Actual Product6%

“As false advertising”

Calcium6%

“Calcium Phosphate so bad for you”

Dosage4%

“These capsules unfortunately fall into the category of less-so”

Vegan/Organic3%

“Contains MILK so not suitable for vegan diet. and maybe for lactose intolerant individuals”

Ingredients-Overall3%

“There are no photos of the ingredients either on Amazon”

Common questions

Is bio cultures complex probiotics profitable to sell on Amazon United Kingdom?
The niche generates £41K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +32.4%. Flapen's verdict: Worth a look (50/100).
How competitive is the bio cultures complex probiotics niche?
12 brands and 51 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in bio cultures complex probiotics?
Top complaints mined from reviews: Functionality-Overall, Nutritional Content, Regulates Digestion. The return rate is 0.0%.
When does demand for bio cultures complex probiotics peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the bio cultures complex probiotics niche?
Listings span £7.49–£33.09; the average listing price is £13.35 (sweet spot $15–$100). The average incumbent carries 2,624 reviews — the moat a new listing must climb.