Is simethicone profitable to sell on Amazon United Kingdom?

The niche generates £180K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.9%. Flapen's verdict: Skip it (38/100).

How competitive is the simethicone niche?

9 brands and 78 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 93% of demand.

What do buyers complain about in simethicone?

Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.1%.

When does demand for simethicone peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the simethicone niche?

Listings span £2.50–£16.05; the average listing price is £7.87 (sweet spot $15–$100). The average incumbent carries 2,993 reviews — the moat a new listing must climb.

simethicone

Skip it

Prices mostly outside the sweet spot ($2.50–$16.05) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great8.7%

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

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay£180K

£180K/yr · 263K searches

Review moat

Okay2,992.73

avg incumbent reviews — the moat a new listing must climb

Avg price

Bad£7.87

avg listing price — sweet spot $15–$100

Growth

Bad-12.9%

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

Brand share

Bad93%

top-5 brand share — brand-locked demand

Competition

Bad87%

top-5 click share — a locked-up shelf

Price range

Bad£2.50–£16.05

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

According to Flapen's Amazon United Kingdom niche tracking, simethicone is a £180K/yr Amazon United Kingdom market (263K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 38/100.

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

simethicone market data

Units sold / yr: 25K–30K; avg 1,500–2,000/product
Revenue / yr: £197K–£236K; units × avg price
Conversion rate: 8.7%
Avg BSR: #52
Page quality: 0%
Prime: 91%
Sponsored: 64%
Out of stock: 6.5%
Avg brand age: 61 months
Avg seller age: 164 days

Competition & brand share

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

87%

Top 20: 100%

Open market

Rennie55%
BLOATEZE15%
Windeze14%
Buscopan6%
Medic3%
Bisodol2%
Open — no brand owns it (3 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -12.9% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top simethicone search terms

simethicone59K/yr +3.3%9.4% conv.
simethicone tablets26K/yr +11.7%8.7% conv.
trapped wind relief for adults27K/yr -33.8%11.3% conv.
simeticone17K/yr +26.1%8.8% conv.
gas x14K/yr -4.5%4.7% conv.
wind relief for adults13K/yr -4.1%9.4% conv.
wind settlers gel capsules8K/yr +13.6%8.5% conv.
wind settlers16K/yr -44.2%7.1% conv.
gas-x10K/yr -0.7%3.5% conv.
espumisan8K/yr +6.4%2.8% conv.

All search terms

Top simethicone 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★)

All 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Rennie Wind Relief Pro Effective Relief from Flatulence and Gas-Related Complaints 250 mg Simeticone 50 Soft Gel Capsules

Rennie£9.804.4★331 rev

Rennie Deflatine Trapped Wind and Bloating Tablets Fast and Effective Heartburn Relief and Indigestion Relief Sugar Free Mint 1 Pack of 36 Tablets

Rennie£5.424.4★6,949 rev

Bloateze Stomach Bloating Cramping & Trapped Wind Relief for Adults | Begins to Work in 15 Minutes | with Active Carbon (20 Tablets)

BLOATEZE£5.964.3★574 rev

Windeze Gel Caps

Windeze£6.384.6★514 rev

Buscopan Targets the Source of Belly Pain Cramps & Discomfort Starts to Work in 15 Minutes 60 Tablets Relief from IBS Stomach Pain Cramps & Discomfort

Buscopan£10.024.7★5,762 rev

Newest

by launch date

Rennie Wind Relief Pro Effective Relief from Flatulence and Gas-Related Complaints 250 mg Simeticone 50 Soft Gel Capsules

Rennie£9.80331 rev

11mo ago

Buscopan Targets the Source of Belly Pain Cramps & Discomfort Starts to Work in 15 Minutes 60 Tablets Relief from IBS Stomach Pain Cramps & Discomfort

Buscopan£10.025,762 rev

1y ago

Bloateze Stomach Bloating Cramping & Trapped Wind Relief for Adults | Begins to Work in 15 Minutes | with Active Carbon (20 Tablets)

BLOATEZE£5.96574 rev

2y ago

Fybocalm Wind and bloating relief 30 capsules Naturally derived Wind and bloating relief long lasting relief Clinically proven Gluten free

Fybogel£9.26871 rev

2y ago

Bisodol Indigestion Relief Tablets Peppermint 1 Pack of 60 Tablets

Bisodol£2.501,212 rev

3y ago

What buyers say about simethicone

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

What buyers love

Value For Money15%

“Great value for money”

Efficiency13%

“Works ok”

Quality-Overall11%

“Good effective product”

Ease Of Use9%

“comes in handy”

Advertised Vs Actual Product9%

“Does what they advertise”

Acid Regulator/Stomach Ache Relief7%

“Helps with my tummy pain”

Regulates Digestion6%

“Works well to reduce painful bloating”

Heart Health3%

“Great for heart burn”

Joint Pain2%

“They work for IBS”

Dosage2%

“actually these are better than the powder ones/ chalky ones just 1 tablet works really well every 5hrs”

What buyers complain about

Functionality-Overall22%

“Not effective enough”

Value For Money14%

“Waste of money”

Taste-Overall7%

“They dont taste of anything which is a positive”

Acid Regulator/Stomach Ache Relief6%

“I have tried alot of different tabs to relieve my bloating and horrible discomfort”

Pain Relief-Overall5%

“gripping pains you get with a dodgy tum”

Regulates Digestion5%

“My partner has developed quite uncomfortable bloating”

Dosage4%

“Cant take them”

Side Effects3%

“results were mixed for me”

Ease Of Chewing/Swallowing2%

“can be sucked or chewed”

Comfort-Overall2%

“making me uncomfortable”

Top return reasons

Functionality-Overall21%

Pain Relief-Overall21%

Leak-Proof14%

Product Condition14%

Dosage14%

Language Issues5%

Acid Regulator/Stomach Ache Relief5%

Side Effects5%

Common questions

Is simethicone profitable to sell on Amazon United Kingdom?: The niche generates £180K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.9%. Flapen's verdict: Skip it (38/100).
How competitive is the simethicone niche?: 9 brands and 78 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in simethicone?: Top complaints mined from reviews: Functionality-Overall, Value For Money, Taste-Overall. The return rate is 0.1%.
When does demand for simethicone peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the simethicone niche?: Listings span £2.50–£16.05; the average listing price is £7.87 (sweet spot $15–$100). The average incumbent carries 2,993 reviews — the moat a new listing must climb.