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Vitamin C 500mg

brand-locked demand (top 5 brands take 98% of clicks) — Vitamin C 500mg doesn't clear our bar today.

Flapen Score

34
Skip it
Market size 22Growth 6Conversion 99Competition 17Returns 100Price range 22Avg price 24Brand share 5Review moat 41Quality gap 28
This niche Category average

Is Vitamin C 500mg profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Vitamin C 500mg is a £89K/yr Amazon United Kingdom market (56K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 34/100.

Vitamin C 500mg: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -38.8% over the last 90 days and 18.3% of searches end in a purchase.

£89K

revenue / yr

Units sold / yr10K
Search volume / yr-38.8%56K
Conversion rate18.3%
Avg price£8.66

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 · 42
Top-5 product click share80%
Open market2%
Avg brand age75 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.6★ — the gap to enter on.

0/100

page quality · 10 products

Sponsored placement100%
New entrants (1y)0· 0 succeeded
Avg rating4.6★
Avg reviews2,357

Top Vitamin C 500mg 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 80% of clicks — a locked-up shelf that new listings rarely crack.

£0£9K£18K£27K£36K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

6 flat

Sellers

42

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

0%

  • Solgar72%
  • Natures Aid9%
  • G R O U N D E D COFFEE SCRUB7%
  • Simply Supplements6%
  • Vitabiotics Ultra4%
  • Vita Thrive2%
  • Open — no brand owns it (0%)

Vitamin C 500mg demand & seasonality

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

Volume56KCVR18.3%Products10Brands6Top 5 Brands98%OOS Rate0.8%Rating4.6★Reviews2,357Avg BSR#61
2K1KSpike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26

Top Vitamin C 500mg search terms shoppers use

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

  • vitamin c 500mg20K/yr
  • solgar vitamin c19K/yr
  • vitamin c 500mg tablets5K/yr
  • vitamin c solgar5K/yr
  • vitamin c tablets 500mg4K/yr
  • solgar vitamin c 1000mg4K/yr

What reviews say buyers love and hate about Vitamin C 500mg

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

What buyers love

91% of reviews
Vitamin36%

Good quality vitamin capsules

Quality-Overall14%

the product seems well made

Ease Of Chewing/Swallowing13%

Pleasant to chew

Value For Money10%

reasonable price

Taste-Overall6%

Taste great

What buyers complain about

77% of reviews
Size-Overall17%

very big

Ease Of Chewing/Swallowing14%

it hurts to swallow them

Vitamin9%

I received a broken vitamin

Taste-Overall9%

tasted like mildew I took out more

Strength9%

Too strong

Common Vitamin C 500mg questions

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

Flapen scores Vitamin C 500mg 34/100 on Amazon United Kingdom — Skip it. The niche generates £89K/yr across 10 tracked products. Search demand moved -38.8% over the last 90 days.
Vitamin C 500mg buyers on Amazon United Kingdom complain most about Size-Overall, Ease Of Chewing/Swallowing, Vitamin, the themes mined from the niche's reviews. Its return rate is 0.0%.