Is vitamin c 500mg profitable to sell on Amazon United Kingdom?

The niche generates £89K/yr across 10 tracked products. 90-day search growth is -38.8%. Flapen's verdict: Skip it (34/100).

How competitive is the vitamin c 500mg niche?

6 brands and 42 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 98% of demand.

What do buyers complain about in vitamin c 500mg?

Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Vitamin. The return rate is 0.0%.

What does it cost to enter the vitamin c 500mg niche?

Listings span £3.83–£18.10; the average listing price is £8.66 (sweet spot $15–$100). The average incumbent carries 2,357 reviews — the moat a new listing must climb.

vitamin c 500mg

Skip it

Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible18.3%

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

Review moat

Okay2,356.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Avg price

Bad£8.66

avg listing price — sweet spot $15–$100

Market size

Bad£89K

£89K/yr · 56K searches

Price range

Bad£3.83–£18.10

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

Competition

Bad80%

top-5 click share — a locked-up shelf

Growth

Bad-38.8%

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, 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.

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

vitamin c 500mg market data

Units sold / yr: 8K–10K; avg 750–1,000/product
Revenue / yr: £69K–£87K; units × avg price
Conversion rate: 18.3%
Avg BSR: #61
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.8%
Avg brand age: 75 months
Avg seller age: 177 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

6 flat

Sellers

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

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%)

Demand

Weekly Amazon search volume, last 26 weeks — -38.8% search growth over the last 90 days.

Open Trend

Top vitamin c 500mg search terms

vitamin c 500mg20K/yr -32.6%13.6% conv.
solgar vitamin c19K/yr -17.3%21.1% conv.
vitamin c 500mg tablets5K/yr -15.5%11.6% conv.
vitamin c solgar5K/yr -65.1%19.7% conv.
vitamin c tablets 500mg4K/yr -63.3%9.2% conv.
solgar vitamin c 1000mg4K/yr -71.6%25.1% conv.

All search terms

Top vitamin c 500mg 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Solgar Vitamin C 1000mg - Healthy Immune System - Helps Fight Free Radicals - Vegan - Pack of 100 Capsules

Solgar£11.434.7★7,554 rev

Solgar 500 mg Vitamin C Vegetable Capsules - Pack of 100 - Seasonal Immunity Support - Potent Antioxidant - Reduces Tiredness and Fatigue - Collagen Formation - Vegan

Solgar£7.564.7★1,955 rev

Natures Aid Vitamin C 500mg 100 Chewable Tablets Supports Immune System & Skin Health - High Strength Sugar Free Vegan Non-GMO Antioxidant Supplement

Natures Aid£5.124.6★3,153 rev

Vitamin C 500 mg Enhanced with Rosehip Bioflavonoids 3 Month Supply (180 Tablets) Vegan & Vegetarian Friendly High Strength Premium Dose Slow Release VIT C for Immune Support UK Made by Grounded

G R O U N D E D COFFEE SCRUB£6.594.4★161 rev

Vitamin C 500mg | 60 Vegan Capsules | 2 Months Supply

Simply Supplements£5.414.4★173 rev

Newest

by launch date

VitaThrive Vitamin C 500mg Chewable Tablets High Strength Vitamin C Supplement for Immune Support Collagen Formation & Daily Wellness Orange Flavour Chewable Tablets 90 Tablets

Vita Thrive£3.83120 rev

4y ago

Vitamin C 500 mg Enhanced with Rosehip Bioflavonoids 3 Month Supply (180 Tablets) Vegan & Vegetarian Friendly High Strength Premium Dose Slow Release VIT C for Immune Support UK Made by Grounded

G R O U N D E D COFFEE SCRUB£6.59161 rev

5y ago

Natures Aid Vitamin C 500mg 100 Chewable Tablets Supports Immune System & Skin Health - High Strength Sugar Free Vegan Non-GMO Antioxidant Supplement

Natures Aid£5.123,153 rev

12y ago

Vitamin C 500mg | 60 Vegan Capsules | 2 Months Supply

Simply Supplements£5.41173 rev

13y ago

Solgar Ester-C 1000 mg Vitamin C Capsules - Pack of 90 - Gentle Non-Acidic Vitamin C Formula - Supports Immune System and Antioxidant Protection

Solgar£18.101,279 rev

13y ago

What buyers say about vitamin c 500mg

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

What buyers love

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”

Ease Of Use5%

“Easy to use”

Immunity Booster3%

“Amazing for immune system”

Advertised Vs Actual Product3%

“Es expected”

Efficiency1%

“Works well”

Size-Overall1%

“good size”

What buyers complain about

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”

Dosage8%

“Brought these before from H & B, as 500mg is enough & 1g is too much”

Compatibility-Overall5%

“Not a compatible product”

Value For Money3%

“Effectively double the cost you think you are paying”