Is mars profitable to sell on Amazon United Kingdom?

The niche generates £215K/yr across 17 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -13.3%. Flapen's verdict: Skip it (47/100).

How competitive is the mars niche?

4 brands and 99 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in mars?

Top complaints mined from reviews: Size-Overall, Taste-Overall, Storage Temperature. The return rate is 0.1%.

When does demand for mars peak?

Demand peaks in Nov; the busiest month runs 1.6× the quietest.

What does it cost to enter the mars niche?

Listings span £1.40–£25.78; the average listing price is £9.75 (sweet spot $15–$100). The average incumbent carries 1,040 reviews — the moat a new listing must climb.

mars

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great11.0%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Good1,040.24

avg incumbent reviews — the moat a new listing must climb

Price range

Okay£1.40–£25.78

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

Market size

Okay£215K

£215K/yr · 202K searches

Competition

Okay64%

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

Avg price

Okay£9.75

avg listing price — sweet spot $15–$100

Growth

Bad-13.3%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, mars is a £215K/yr Amazon United Kingdom market (202K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Nov. Verdict: Skip it — 47/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

mars market data

Units sold / yr: 25K–30K; avg 1,000–1,250/product
Revenue / yr: £244K–£293K; units × avg price
Conversion rate: 11.0%
Avg BSR: #397
Page quality: 0%
Prime: 76%
Sponsored: 12%
Out of stock: 0.0%
Avg brand age: 46 months
Avg seller age: 165 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

4 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

Mars88%
SHANZA DEPARTMENTAL'S9%
ESSENTIAL PRODUCTS2%
Cadbury1%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -13.3% search growth over the last 90 days.

Peak months: Nov · busiest ÷ quietest = 1.6×

Open Trend

Top mars search terms

mars bar111K/yr -20.8%7.2% conv.
mars bars58K/yr +7.5%8.1% conv.
mars bars - full box of 48 bars15K/yr -26.6%4.4% conv.
mars chocolate8K/yr -24.9%2.6% conv.
mars bars - full box of 24 bars4K/yr +11.5%8.8% conv.
mars chocolate bars3K/yr -6.9%5.3% conv.
mars bars multipack3K/yr -56.5%6.7% conv.

All search terms

Top mars 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 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Mars Caramel Chocolate Bars 8 Pack - Milk Chocolate Nougat Multipack for Summer Holidays On-the-Go Snack Festival Snacks Sharing & Party Treats

Mars£3.113.3★5 rev

Mars Chocolate Bar Box 51g x24

Mars£15.024.6★2,988 rev

Mars Chocolate Fun Size Bars Multipack 16 x 18g

Mars£3.374.6★166 rev

Mars Milk Chocolate Caramel & Nougat Bars Bulk Box 48 Bars of 51g

Mars£25.324.5★954 rev

Mars Chocolate Bars Milk Chocolate Bulk Gift Treat Office Box 51g Pack Of 24 Bars

SHANZA DEPARTMENTAL'S£18.264.5★135 rev

Newest

by launch date

Mars Orange Chocolate Low Sugar High Protein Bars 12×55g | 18g Protein Only 2g Sugar | Healthy Energy Snack Individually Wrapped Protein Bar for Fitness Gym & OntheGo Fuel

Mars£18.1512 rev

5mo ago

Mars Caramel Chocolate Bars 8 Pack - Milk Chocolate Nougat Multipack for Summer Holidays On-the-Go Snack Festival Snacks Sharing & Party Treats

Mars£3.115 rev

6mo ago

Mars Caramel Milk Chocolate Bars Multipack 4 x 40g Chocolate Bars with Soft Nougat Chocolate Gift Box for Sharing Snacks Movie Nights & Office Treats

Mars£2.220 rev

6mo ago

Mars Chocolate Bar Box 51g x24

Mars£15.022,988 rev

9mo ago

Mars Bar Chocolate Bundle Pack of 10 | 51g

Mars£8.812,988 rev

1y ago

What buyers say about mars

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

What buyers love

Taste-Overall28%

“Good taste”

Value For Money22%

“Good value”

Sweetness6%

“Very sweet”

Quality-Overall6%

“Good variety”

Soft Feel4%

“Delights soft nougat”

Nutritional Content4%

“Tasty protein bars”

Size-Overall4%

“good size”

Flavor3%

“A lovely little find, ideal for that little treat, they taste lovely soft chewy nougat center in milk chocolate, satisfying”

Blend/Ratio3%

“Nice mix of chocolates”

Advertised Vs Actual Product3%

“As described”

What buyers complain about

Size-Overall12%

“find the full size ones too much for me”

Taste-Overall9%

“with very little taste”

Storage Temperature8%

“some of them had melted”

Value For Money8%

“poor not worth the money”

Durability8%

“Didn't last long as they were tasty”

Sweetness8%

“Far sugary than I remembered”

Quality-Overall6%

“they are not cheap”

Stale/Rotten/Spoiled6%

“It was stale”

Powdered/Crumbled6%

“14 Mars bars were crushed”

Hard Feel2%

“The caramel was hard and dry, not soft and smooth as normal with a stretch like mozzarella”

Top return reasons

Value For Money100%

Common questions

Is mars profitable to sell on Amazon United Kingdom?: The niche generates £215K/yr across 17 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -13.3%. Flapen's verdict: Skip it (47/100).
How competitive is the mars niche?: 4 brands and 99 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in mars?: Top complaints mined from reviews: Size-Overall, Taste-Overall, Storage Temperature. The return rate is 0.1%.
When does demand for mars peak?: Demand peaks in Nov; the busiest month runs 1.6× the quietest.
What does it cost to enter the mars niche?: Listings span £1.40–£25.78; the average listing price is £9.75 (sweet spot $15–$100). The average incumbent carries 1,040 reviews — the moat a new listing must climb.