heartburn liquid
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible21.8%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Review moat
Good569.78avg incumbent reviews — the moat a new listing must climb
Market size
Good£607K£607K/yr · 314K searches
Competition
Bad70%top-5 click share — a locked-up shelf
Avg price
Okay£8.85avg listing price — sweet spot $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Price range
Bad£3.94–£17.39cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-16.1%90-day search growth — must beat 0% to launch
Brand share
Bad98%top-5 brand share — brand-locked demand
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.
Data updated Jul 25, 2026 · scored weekly · How we score niches
heartburn liquid market data
- Units sold / yr
- 60K–80K
- avg 4,000–5,000/product
- Revenue / yr
- £531K–£708K
- units × avg price
- Conversion rate
- 21.8%
- Avg BSR
- #45
- Page quality
- 0%
- Prime
- 78%
- Sponsored
- 83%
- Out of stock
- 0.0%
- Avg brand age
- 77 months
- Avg seller age
- 175 days
Competition & brand share
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.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%
Demand
Weekly Amazon search volume, last 42 weeks — -16.1% search growth over the last 90 days.Top heartburn liquid search terms
- 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
Top heartburn liquid 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.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Gaviscon Double Action Sachets Mint 24 X 10ml Heartburn Relief Acid Reflux Indigestion Liquid Gerd Gastro Resistant Gets To Work Instantly Lasts 2X Longer Antacids Digestion and Nausea
Gaviscon£8.094.7★3,562 rev
Gaviscon Double Action Mint Liquid 500ml - Heartburn & Acid Reflux Relief Fast-Acting Formula Long-Lasting Comfort Suitable for Pregnancy Digestion and Nausea (500 ml (Pack of 1))
Gaviscon£10.054.8★902 rev
Gaviscon Double Action Aniseed Liquid 500ml - Heartburn Indigestion Stomach Pain Acid Reflux Relief Digestive Health Long-Lasting Antacid Pregnancy Safe
Gaviscon£10.184.8★266 rev
Gaviscon Double Action Heartburn & Indigestion Relief Mint Flavour Liquid Sachets 10ml Pack of 48
Gaviscon£15.854.8★616 rev
Gaviscon Original Aniseed Liquid 500ml - Heartburn & Acid Reflux Relief Fast-Acting Formula Protective Barrier Long-Lasting Comfort Suitable for Pregnancy Antacids Digestion and Nausea
Gaviscon£9.284.8★266 rev
Newest
by launch date
Acidex Aniseed 500ml Sugar Free Liquid for Fast Acting Heartburn Indigestion Acid Reflux & Nausea Relief Suitable for Pregnancy & Breast Feeding Pack of 2
Generic£15.5725 rev
Peptac Liquid Aniseed 500 ml Sugar-Free Indigestion Relief - Free Measuring Cup - Fast-Acting Heartburn Indigestion Acid Reflux and Nausea Relief
ANCIENT CARE CREATING HEALTHIER LIVES£7.99106 rev
Gaviscon Original Peppermint Liquid 500ml - Heartburn & Acid Reflux Relief Fast-Acting Formula Protective Barrier Long-Lasting Comfort Suitable for Pregnancy Antacids Digestion and Nausea
Gaviscon£8.6377 rev
Gaviscon Double Action Aniseed Liquid 500ml - Heartburn Indigestion Stomach Pain Acid Reflux Relief Digestive Health Long-Lasting Antacid Pregnancy Safe
Gaviscon£10.18266 rev
Gaviscon Original Aniseed Liquid 500ml - Heartburn & Acid Reflux Relief Fast-Acting Formula Protective Barrier Long-Lasting Comfort Suitable for Pregnancy Antacids Digestion and Nausea
Gaviscon£9.28266 rev
Trending
90-day click momentumPeptac Liquid Aniseed 500 ml Sugar-Free Indigestion Relief - Free Measuring Cup - Fast-Acting Heartburn Indigestion Acid Reflux and Nausea Relief
ANCIENT CARE CREATING HEALTHIER LIVES£7.994.7★
Gaviscon Double Action Aniseed Liquid 250ml - Fast Heartburn & Indigestion Relief Convenient Sachets Antacids for Effective Digestion Acid Reflux Relief Pregnancy Safe
Gaviscon£7.584.8★
Acidex Aniseed 500ml Sugar Free Liquid for Fast Acting Heartburn Indigestion Acid Reflux & Nausea Relief Suitable for Pregnancy & Breast Feeding Pack of 2
Generic£15.574.2★
Pepto-Bismol for Nausea Heartburn Indigestion Upset Stomach and Diarrhoea Relief 5 Symptom Relief 120ml
Pepto Bismol£3.944.4★
Care Heartburn & Indigestion Relief Peppermint Flavour Oral Suspension Fast-Acting Soothing Formula for Acid Reflux and Indigestion Gentle on Stomach Long-Lasting Relief 1 x 500ml
Care£6.504.5★
What buyers say about heartburn liquid
What buyers praise and complain about, mined from review topics.What buyers love
“Good Price”
“Excellent product”
“Effective”
“as advertised”
“Very good for heart burn”
“Acid reflux relief”
“Indigestion Relief”
“Tastes minty, a little medicinely”
“easy to use”
“Nice flavor”
What buyers complain about
“same bottle different taste for market one”
“bit expensive”
“Didnt work for me”
“Terrible TV advert”
“I thought the bottle would be bigger”
“Acid reflux”
“But I have a very sensitive stomach”
“I had nausea to the point of thinking I was going to vomit”
“Parcel was leaking one of bottles were cracked be careful when opening package as I did cut myself on the glass of the bottle”
“I wish I'd picked the mint flavour though”
Top return reasons
Common questions
- Is heartburn liquid profitable to sell on Amazon United Kingdom?
- The niche generates £607K/yr across 18 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Skip it (44/100).
- How competitive is the heartburn liquid niche?
- 6 brands and 81 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in heartburn liquid?
- Top complaints mined from reviews: Taste-Overall, Value For Money, Functionality-Overall. The return rate is 0.1%.
- What does it cost to enter the heartburn liquid niche?
- Listings span £3.94–£17.39; the average listing price is £8.85 (sweet spot $15–$100). The average incumbent carries 570 reviews — the moat a new listing must climb.