Vitamin C
FailShoppers spend an estimated $11K a year here, so Vitamin C is a Fail.
- Flapen Score
- 42 / 100Top 24% of 198 Health, Household and Personal Care niches · +5 vs the category median of 3742
- Market size
- $11K/yr20K searches / yr
- 90-day growth
- +3.4%search demand this quarter
- Competition
- 55%top-5 click share · 15 brands · 21 sellers
Flapen Score
Vitamin C against its category
The dotted line is the Health, Household and Personal Care average. Past it, Vitamin C is stronger. Inside it, weaker.
Market
The Vitamin C market on Amazon at a glance
Shoppers on Amazon Singapore searched for Vitamin C 20K times last year and spent an estimated $11K. The top 5 brands take 72% of clicks. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 3.0% of those searches ended in a purchase.
Shoppers searched for this 20K times in the last 12 months. That counts every search on Amazon Singapore for this niche's terms. An estimated 3.0% of those searches ended in a purchase. Searches in the last 90 days moved +3.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $11K a year.
- Searches, last 12 months
- 20K
- Growth, 90 days vs prior 90
- +3.4%
- Conversion, latest week
- 3.0%
- Market size, estimated
- $11Ka year
- Top search term
- vitamin c18K searches a year
02 · Price
A sale here is worth $18.15.
Listings sell for $18.15 on average, from $5.68 to $36.57. Amazon reports units sold in ranges. This niche sold 1K to 2K a year. The average listing sells 0 to 100 of them. At $18.15 that is $0 to $2K a year per listing.
- Average price
- $18.15inside the $15 to $100 sweet spot
- Price range
- $5.68–$36.57
- Amazon Singapore median price
- $30.00across 1,590 niches
- Units sold a year
- 1K–2K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$2K
- Returns
- 0.3%of orders · Amazon Singapore median 0.0%
03 · Entry bar
The bar here is reviews.
50% of listings pay for placement with sponsored ads. 79% ship with Prime. On an average day, 7.4% of listings are out of stock. The average listing ranks #486 within Health, Household and Personal Care. It carries 7,613 reviews at 4.73 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 50%
- Prime listings
- 79%
- Out of stock, average day
- 7.4%
- Average rank
- #486in Health, Household and Personal Care
- Average rating
- 4.73 starsAmazon Singapore average 4.47 stars
- Average reviews
- 7,613per listing
- Listings tracked
- 24
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 112 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 112 months
Products
Top Vitamin C products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
NOW Supplements Vitamin C-1 000 with Rose Hips Sustained Release Antioxidant Protection 250 Tablets
- Price
- $22.81
- Rating
- 4.7/5
- Reviews
- 19,729
- Age
- 13y ago

Now Foods C-1000 Sustained Release Tablets 100ct
- Price
- $13.94
- Rating
- 4.7/5
- Reviews
- 19,729
- Age
- 13y ago

NOW Supplements Vitamin C-1 000 with 100 mg of Bioflavonoids Antioxidant Protection* 250 Veg Capsules
- Price
- $21.30
- Rating
- 4.8/5
- Reviews
- 10,435
- Age
- 18y ago

Voost Vitamin C Effervescent Vitamin 20 Tabs (20 count)
- Price
- $13.77
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 7y ago

Vitamin C + Rose Hips by Natures Bounty. Vitamin C is a Leading Vitamin for Immune Support 1000mg 100 Coated Caplets
- Price
- $15.98
- Rating
- 4.8/5
- Reviews
- 47,532
- Age
- 13y ago
Trending
estimated 90-day click momentum
Solgar Vitamin C 1000 mg 90 Tablets - Antioxidant & Immune Support Overall Health Healthy Skin & Joints - Bioflavonoids Supplement - Non-GMO Vegan Gluten Free Kosher - 90 Servings
- Price
- $17.04
- Rating
- 4.8/5
- Reviews
- 2,448
- Age
- 13y ago

Swanson C-500 - Vitamin C with Rose Hips 500 mg 100 Vegan Caps Immune Antioxidant Eye Heart Metabolic and Collagen Support
- Price
- $5.68
- Rating
- 4.6/5
- Reviews
- 210
- Age
- 10y ago

Ester-C Vitamin C 1000 mg Coated Tablets Immune System Booster Stomach-Friendly Supplement 120 count
- Price
- $20.99
- Rating
- 4.7/5
- Reviews
- 14,912
- Age
- 13y ago

Voost Vitamin C Blood Orange Effervescent Vitamin Supplement 60 Tabs
- Price
- $22.82
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 3y ago

Blackmores Bio C 1000mg Vitamin C Tablets (30s) Ultimate Immunity Fighter
- Price
- $16.70
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 3y ago
Newest
by launch date
Vita C Immunity Booster Extreme 1000Mg Zinc Vit B6 D3 Selenium Echinacea Effervescent 20 Tablets Vitamin C 1000Mg Effervescent Tablets Vitamin C 1000Mg Vitamin C Effervescent (2)
- Price
- $11.05
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 1y ago

Voost Vitamin C Blood Orange Effervescent Vitamin Supplement 60 Tabs
- Price
- $22.82
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 3y ago

WATSONS Vitamin C + Vitamin D3 + Zinc Effervescent Tablets Natural Orange Flavour (For Immune Health) 15s x 3 Tubes
- Price
- $24.66
- Rating
- 4.0/5
- Reviews
- 2
- Age
- 3y ago

Blackmores Bio C 1000mg Vitamin C Tablets (30s) Ultimate Immunity Fighter
- Price
- $16.70
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 3y ago

Voost Vitamin C Blood Orange Effervescent Tablets 40 Pack
- Price
- $26.57
- Rating
- 4.7/5
- Reviews
- 92
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 55% of clicks. Leaders hold, but buyers still shop past them.
Brands
15 falling
Sellers
21
Est. top-5 brand share
72%
Top 20: 100%
Est. top-5 click share
55%
Top 20: 94%
Open market
23%
- Now Foods43%
- Voost10%
- Blackmores7%
- Nature Made6%
- Nature's Bounty6%
- Nano Singapore5%
Demand
Vitamin C search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov · busiest ÷ quietest = 2.1× · 11 of 12 months tracked
Search terms
Top Vitamin C search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- vitamin c18K/yr
- vitamin c 1000mg803/yr
- vit c605/yr
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Vitamin C questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









