Skip to content
43

vitamin c and zinc

Skip it

Prices mostly outside the sweet spot ($2.92–$13.50) — this niche doesn't clear our bar today.

Market size 35Growth 5Conversion 97Competition 27Returns 100Price range 0Avg price 22Brand share 58Review moat 51Quality gap 33

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible15.7%

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

Brand share

Good70%

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

Review moat

Good1,442.63

avg incumbent reviews — the moat a new listing must climb

Market size

Okay£169K

£169K/yr · 132K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay69%

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

Avg price

Bad£8.10

avg listing price — sweet spot $15–$100

Growth

Bad-40.6%

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

Price range

Bad£2.92–£13.50

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

According to Flapen's Amazon United Kingdom niche tracking, vitamin c and zinc is a £169K/yr Amazon United Kingdom market (132K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Jan–Feb–Oct. Verdict: Skip it — 43/100.

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

vitamin c and zinc market data

Units sold / yr
15K–20K
avg 1,000–1,250/product
Revenue / yr
£122K–£162K
units × avg price
Conversion rate
15.7%
Avg BSR
#48
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
0.5%
Avg brand age
74 months
Avg seller age
165 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 falling

Sellers

48

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

23%

  • WeightWorld26%
  • yrhealth17%
  • VL Vita London11%
  • Horbäach9%
  • ALPHA018%
  • Vitamin Store7%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -40.6% search growth over the last 90 days.
7K5KSpike '24Spike '25SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Oct · busiest ÷ quietest = 2.5×

Top vitamin c and zinc search terms

  • vitamin c and zinc70K/yr
  • vitamin c with zinc13K/yr
  • vitamin c and zinc tablets15K/yr
  • vit c and zinc11K/yr
  • vitamin c zinc10K/yr
  • zinc and vitamin c10K/yr
  • zinc vitamin c3K/yr
All search terms

Top vitamin c and zinc 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.

0%10%£17K20%£34K30%£51K40%£67K1001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

What buyers say about vitamin c and zinc

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

What buyers love

Vitamin17%

“Good source of required vitamins”

Quality-Overall15%

“It is a good product to have available”

Value For Money13%

“Amazing value”

Taste-Overall8%

“it turns into a refreshing drink within seconds”

Cold Relief4%

“These seem to work really well for preventing a cold”

Solubility4%

“dissolves quickly”

Ease Of Use4%

“most pleasant to use”

Immunity Booster3%

“Help for immune system”

Advertised Vs Actual Product3%

“do the job”

Ease Of Chewing/Swallowing3%

“easy enough yo get down with a food mouthful of water”

What buyers complain about

Ease Of Chewing/Swallowing25%

“Impossible to swallow”

Size-Overall15%

“Large capsules”

Solubility9%

“Dissolves instantly in your mouth, awful taste”

Taste-Overall8%

“Dissolves instantly in your mouth, awful taste”

Bitter3%

“are very bitter”

Sweetness2%

“The drink has a light citrus flavour that isnt overly sweet”

Quality-Overall2%

“Poor tablet quality”

Flavor2%

“Flavour not the best on the market, weaker and less fizzy than others,”

Functionality-Overall2%

“Not sure that these worked at all”

Thickness2%

“I buy for the second time and they are now thin, long tablet's and they are even harder to swallow”

Common questions

Is vitamin c and zinc profitable to sell on Amazon United Kingdom?
The niche generates £169K/yr across 16 tracked products. 90-day search growth is -40.6%. Flapen's verdict: Skip it (43/100).
How competitive is the vitamin c and zinc niche?
15 brands and 48 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in vitamin c and zinc?
Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Solubility. The return rate is 0.1%.
When does demand for vitamin c and zinc peak?
Demand peaks in Jan–Feb–Oct; the busiest month runs 2.5× the quietest.
What does it cost to enter the vitamin c and zinc niche?
Listings span £2.92–£13.50; the average listing price is £8.10 (sweet spot $15–$100). The average incumbent carries 1,443 reviews — the moat a new listing must climb.