Is probiotics profitable to sell on Amazon United Kingdom?

The niche generates £2.7M/yr across 25 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.1%. Flapen's verdict: Worth a look (62/100).

How competitive is the probiotics niche?

14 brands and 102 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 69% of demand.

What do buyers complain about in probiotics?

Top complaints mined from reviews: Functionality-Overall, Acid Regulator/Stomach Ache Relief, Side Effects. The return rate is 0.1%.

When does demand for probiotics peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the probiotics niche?

Listings span £4.14–£52.39; the average listing price is £13.34 (sweet spot $15–$100). The average incumbent carries 2,345 reviews — the moat a new listing must climb.

probiotics

Worth a look

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

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Market size

Incredible£2.7M

£2.7M/yr · 2.3M searches

Conversion

Great8.7%

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

Price range

Great£4.14–£52.39

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

Avg price

Good£13.34

avg listing price — sweet spot $15–$100

Brand share

Good69%

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

Competition

Good53%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay2,344.88

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Growth

Bad-12.1%

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

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.

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

probiotics market data

Units sold / yr: 200K–250K; avg 12,500–15,000/product
Revenue / yr: £2.7M–£3.3M; units × avg price
Conversion rate: 8.7%
Avg BSR: #45
Page quality: 0%
Prime: 96%
Sponsored: 84%
Out of stock: 5.0%
Avg brand age: 52 months
Avg seller age: 157 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

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%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -12.1% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top probiotics search terms

probiotics726K/yr -4.4%3.8% conv.
probiotics for women331K/yr -31.3%3.0% conv.
optibac probiotics188K/yr -12.9%4.7% conv.
gut health194K/yr -14.3%1.6% conv.
probiotics for gut health210K/yr -4.5%3.9% conv.
probiotic109K/yr -3.8%2.8% conv.
optibac94K/yr -19.6%4.1% conv.
gut health supplements68K/yr -19.9%2.5% conv.
probiotics for men42K/yr -10.7%4.5% conv.
bio kult52K/yr +2.0%10.8% conv.

All search terms

Top 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Bio-Kult Everyday Multi-Strain Formulation Probiotics for Digestive System 60 Capsules (Pack of 1)

Bio-Kult£10.434.5★9,489 rev

Intimate Flora Probiotics for Women | 20 Billion CFU Fortified with 15 000mg Cranberry Fenugreek & Chlorella | Bio Cultures for Womens Intimate Flora | 60 Capsules | Free Soul

Free Soul£8.254.4★2,235 rev

Bio Cultures 80 Billion CFU: 20 Live Strains - Gut Health Supplements for Women & Men - 2 Month Supply - Including Lactobacillus Acidophilus & Casei High Strength Bio Cultures 60 Capsules UK Made

NEW LEAF PRODUCTS£8.514.5★325 rev

Bio-Kult Everyday | 14 Strains | Daily Gut Support for Ages 3+ | Live Bacteria Supplement | 30 Capsules

Bio-Kult£5.184.5★9,489 rev

Zipvit Bio Cultures 6 Billion CFU with Prebiotic Includes Lactobacillus & Bifidobacterium 5 Live Strains 60 Vegetarian Capsules 2 Months Supply

Zipvit£7.494.5★3,635 rev

Newest

by launch date

Hybrid Health Pre & Pro-Bio Cultures - 2 Months Supply 100 Billion CFU 20 Live Cultures with Fibres Multi-Strain Daily Pro Bio Cultures for Men & Women Vegan

Hybrid Health£8.290 rev

3w ago

Bio Cultures 80 Billion CFU: 20 Live Strains - Gut Health Supplements for Women & Men - 2 Month Supply - Including Lactobacillus Acidophilus & Casei High Strength Bio Cultures 60 Capsules UK Made

NEW LEAF PRODUCTS£8.51325 rev

1y ago

Oxford Origins£4.66435 rev

1y ago

80 Billion CFU Probiotics - 20 Strains + Prebiotics | Lactobacillus and Bifidobacterium Strains | Probiotics for Women and Men | Made in The UK 2 Month Supply

Macro Greens£8.282,101 rev

2y ago

Wellgard Gutstar Bio Cultures for Gut Health 20 Billion CFU - 16 Strains Bio Culture Supplement for Women & Men with Fennel Ginger & Vitamin B12 Vegan 30 Capsules UK Made

Wellgard£10.19693 rev

2y ago

What buyers say about probiotics

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

What buyers love

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”

Nutritional Content5%

“Great probiotics”

Regulates Digestion4%

“Gut health”

Vitamin4%

“I highly recomend these vitamins”

Side Effects3%

“Have had no negative reactions so far”

Dosage3%

“I think these pills really did the job”

What buyers complain about

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”

Allergies4%

“Caused my skin to breakout really badly”

Taste-Overall3%

“Tasteless”

Advertised Vs Actual Product3%

“As false advertising”

Quality-Overall3%

“Poor quality”

Ingredients-Overall3%

“Tablets are extremely high in ingredients and caused a lot of pain, cramping, bloating and excess discharge and even unwanted bleeding”

Common questions

Is probiotics profitable to sell on Amazon United Kingdom?: The niche generates £2.7M/yr across 25 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.1%. Flapen's verdict: Worth a look (62/100).
How competitive is the probiotics niche?: 14 brands and 102 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 69% of demand.
What do buyers complain about in probiotics?: Top complaints mined from reviews: Functionality-Overall, Acid Regulator/Stomach Ache Relief, Side Effects. The return rate is 0.1%.
When does demand for probiotics peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the probiotics niche?: Listings span £4.14–£52.39; the average listing price is £13.34 (sweet spot $15–$100). The average incumbent carries 2,345 reviews — the moat a new listing must climb.