Is milk bottle tops profitable to sell on Amazon United Kingdom?

The niche generates £64K/yr across 15 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -16.8%. Flapen's verdict: Skip it (39/100).

How competitive is the milk bottle tops niche?

9 brands and 12 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in milk bottle tops?

Top complaints mined from reviews: Size-Overall, Leak-Proof, Value For Money. The return rate is 0.6%.

When does demand for milk bottle tops peak?

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

What does it cost to enter the milk bottle tops niche?

Listings span £3.11–£8.43; the average listing price is £5.31 (sweet spot $15–$100). The average incumbent carries 2,709 reviews — the moat a new listing must climb.

milk bottle tops

Skip it

Prices mostly outside the sweet spot ($3.11–$8.43) — this niche doesn't clear our bar today.

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Conversion

Incredible13.8%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,708.87

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay87%

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

Competition

Okay68%

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

Growth

Bad-16.8%

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

Market size

Bad£64K

£64K/yr · 87K searches

Avg price

Bad£5.31

avg listing price — sweet spot $15–$100

Price range

Bad£3.11–£8.43

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

According to Flapen's Amazon United Kingdom niche tracking, milk bottle tops is a £64K/yr Amazon United Kingdom market (87K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 39/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

milk bottle tops market data

Units sold / yr: 10K–13K; avg 750–1,000/product
Revenue / yr: £53K–£66K; units × avg price
Conversion rate: 13.8%
Avg BSR: #552
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 8.9%
Avg brand age: 25 months
Avg seller age: 195 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

MOOPOPS29%
Yuecda18%
Wingcases18%
Cosy Little Home14%
MilkTopz8%
HeiTao5%
Open — no brand owns it (3 brands, 8%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.8% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top milk bottle tops search terms

milk bottle tops61K/yr -16.1%13.1% conv.
glass milk bottle tops6K/yr -34.0%12.9% conv.
milk bottle tops for uk glass bottles5K/yr -16.9%10.1% conv.
reusable milk bottle tops5K/yr -5.3%11.1% conv.
milk bottle lids4K/yr -19.8%9.3% conv.
silicone milk bottle tops3K/yr -10.8%14.7% conv.
milk bottle caps3K/yr -11.4%11.2% conv.

All search terms

Top milk bottle tops 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 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

MOOPOPS£5.044.7★10,713 rev

Milk Bottle Tops [One Pint NOT 1L] Reusable Silicone Mixed without Bottle Perfect Fit for UK One Pint Milk Glass Bottles Dishwasher Safe 100% Leakproof Multicolour (3 pcs)

Yuecda£4.214.6★389 rev

Cosy Little Home Airtight Milk Bottle Tops (5 pack) reusable specifically designed to fit standard UK one pint glass milk bottles. Made in UK

Cosy Little Home£5.554.6★4,070 rev

Wingcases-Milk Bottle Tops [One PintNOT 1L] Reusable Silicone Mixed 3 Pack without Bottle Designed Only for The UK One Pint Milk Glass Bottle Dishwasher 100% Leakproof Multicolour

Wingcases£4.094.6★586 rev

MilkTopz - 6 x 100% LeakProof Airtight Reusable Silicone Milk Bottle Tops for UK 1 Pint Milk Bottles x 6 (Multi Colour) - BOTTLES NOT INCLUDED

MilkTopz£6.694.7★1,149 rev

Newest

by launch date

3 Pcs Reusable Silicone Milk Bottle Tops Dishwasher Safe Airtight Bottle Seal Designed To Fit Standard UK One Pint Glass Milk Bottles(Multicolour 33mm Diameter)

HeiTao£3.408 rev

3mo ago

Wingcases Milk Bottle Tops Crown Caps Design [One PintNOT 1L] Reusable Silicone Mixed 3 Pack without Bottle Only for The UK One Pint Glass Bottle Dishwasher 100% Leakproof Blue Sage Green Pink

Wingcases£3.18123 rev

4mo ago

6 Pack Milk Bottle Tops [One Pint NOT 1L] Reusable Silicone Lids for One Pint Milk Glass Bottles Leakproof & Dishwasher Safe Durable Food-Grade Silicone

ENAESLOT£5.3910 rev

8mo ago

4 pcs leak-proof dishwasher-safe silicone milk bottle caps fits 48mm glass milk bottles in 3 colors.

Girejujon£3.1110 rev

11mo ago

Milk Bottle Tops [One Pint NOT 1L] Reusable Silicone Mixed without Bottle Perfect Fit for UK One Pint Milk Glass Bottles Dishwasher Safe 100% Leakproof Multicolour (3 pcs)

Yuecda£4.21389 rev

1y ago

What buyers say about milk bottle tops

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

What buyers love

Size-Overall26%

“fit the bottle perfectly”

Quality-Overall12%

“Really good lids”

Ease Of Use10%

“Easy to put on and take off”

Value For Money8%

“Great value”

Ease Of Cleaning8%

“Easy to clean”

Leak-Proof6%

“and the lids stay in and don't leak”

Advertised Vs Actual Product5%

“Exactly what I was looking for”

Color4%

“The colours are useful too”

Efficiency3%

“Does the job”

Locally Manufactured3%

“Great UK product”

What buyers complain about

Size-Overall49%

“A bit loose”

Leak-Proof11%

“NOT leak proof”

Value For Money6%

“a bit expensive”

Smell5%

“Not for keeping smells out”

Durability2%

“One of the pourers came apart on first hand wash”

Natural Resource Wastage2%

“WASTE OF MONEY”

Strength2%

“Flimsy and deficient functionally”

Display Colors2%

“The colours are nothing like the ones shown”

Color2%

“Not the colours shown”

Compatibility-Overall1%

“won't fit every milk container”

Top return reasons

Size-Overall84%

Leak-Proof5%

Advertised Vs Actual Product3%

Compatibility-Overall2%

Color2%

Value For Money1%

Ease Of Use1%

Thickness1%

Safety Standards1%

Wet Cleaning1%

Common questions

Is milk bottle tops profitable to sell on Amazon United Kingdom?: The niche generates £64K/yr across 15 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -16.8%. Flapen's verdict: Skip it (39/100).
How competitive is the milk bottle tops niche?: 9 brands and 12 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 87% of demand.
What do buyers complain about in milk bottle tops?: Top complaints mined from reviews: Size-Overall, Leak-Proof, Value For Money. The return rate is 0.6%.
When does demand for milk bottle tops peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the milk bottle tops niche?: Listings span £3.11–£8.43; the average listing price is £5.31 (sweet spot $15–$100). The average incumbent carries 2,709 reviews — the moat a new listing must climb.