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Heartburn Liquid

brand-locked demand (top 5 brands take 98% of clicks) — Heartburn Liquid doesn't clear our bar today.

Flapen Score

44
Skip it
Market size 64Growth 17Conversion 100Competition 25Returns 100Price range 18Avg price 25Brand share 4Review moat 73Quality gap 21
This niche Category average

Is Heartburn Liquid profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Heartburn Liquid is a £607K/yr Amazon United Kingdom market (314K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 44/100.

Heartburn Liquid: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -16.1% over the last 90 days and 21.8% of searches end in a purchase.

£607K

revenue / yr

Units sold / yr80K
Search volume / yr-16.1%314K
Conversion rate21.8%
Avg price£8.85

Who owns the niche?

The top 5 brands hold 98% of demand, so 2% of the market is open.

2%

open market share

Brands · sellers6 · 81
Top-5 product click share70%
Open market2%
Avg brand age77 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.

0/100

page quality · 18 products

Sponsored placement83%
New entrants (1y)1· 0 succeeded
Avg rating4.7★
Avg reviews570

Top Heartburn Liquid 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 capture 70% of clicks — a locked-up shelf that new listings rarely crack.

£0£61K£121K£182K£243K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

6 rising

Sellers

81

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

0%

  • Gaviscon85%
  • ANCIENT CARE CREATING HEALTHIER LIVES5%
  • Care3%
  • Pepto Bismol3%
  • Generic2%
  • Reckitt Benckiser Healthcare (UK) Ltd2%

Heartburn Liquid demand & seasonality

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

Volume314KCVR21.8%Products18Brands6Top 5 Brands98%OOS Rate0.0%Rating4.7★Reviews570Avg BSR#45
7K5KOct '25Nov '25Jan '26Mar '26Apr '26Jun '26

Top Heartburn Liquid search terms shoppers use

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

  • gaviscon double action liquid145K/yr
  • gaviscon sachets48K/yr
  • gaviscon liquid30K/yr
  • indigestion liquid19K/yr
  • heartburn liquid19K/yr
  • antacid liquid11K/yr
  • acidex8K/yr
  • acidex advance liquid aniseed 500ml6K/yr
  • gaviscon aniseed7K/yr
  • gaviscon liquid sachets4K/yr

What reviews say buyers love and hate about Heartburn Liquid

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

What buyers love

81% of reviews
Value For Money13%

Good Price

Quality-Overall11%

Excellent product

Efficiency9%

Effective

Advertised Vs Actual Product9%

as advertised

Heart Health9%

Very good for heart burn

What buyers complain about

55% of reviews
Taste-Overall14%

same bottle different taste for market one

Value For Money10%

bit expensive

Functionality-Overall5%

Didnt work for me

Advertised Vs Actual Product5%

Terrible TV advert

Size-Overall4%

I thought the bottle would be bigger

Heartburn Liquid return rate & reasons

Why buyers send it back, as a share of all return requests.

0.1%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Leak-Proof
59%
2Flavor
10%
3Maintenance And Repair
4%
4Contamination
3%
5Value For Money
2%

Common Heartburn Liquid questions

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

Flapen scores Heartburn Liquid 44/100 on Amazon United Kingdom — Skip it. The niche generates £607K/yr across 18 tracked products. 0 of 1 products launched in the last 360 days are still selling. Search demand moved -16.1% over the last 90 days.
Heartburn Liquid buyers on Amazon United Kingdom complain most about Taste-Overall, Value For Money, Functionality-Overall, the themes mined from the niche's reviews. Its return rate is 0.1%.