Ester C 1000mg Capsules
FailThe top 5 brands take 100% of clicks, so Ester C 1000mg Capsules is a Fail.
- Flapen Score
- 47 / 100Ranks 8,381 of 14,768 Health & Household niches · −2 vs the category median of 4947
- Market size
- $878K/yr231K searches / yr
- 90-day growth
- -9.6%search demand this quarter
- Competition
- 80%top-5 click share · 3 brands · 37 sellers
Flapen Score
Ester C 1000mg Capsules against its category
The dotted line is the Health & Household average. Past it, Ester C 1000mg Capsules is stronger. Inside it, weaker.
Market
The Ester C 1000mg Capsules market on Amazon at a glance
Shoppers on Amazon United States searched for Ester C 1000mg Capsules 231K times last year and spent an estimated $878K. All 3 brands take every click. Demand peaks in Jan–Feb–Mar–Dec. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 21.0% of those searches ended in a purchase.
Shoppers searched for this 231K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 21.0% of those searches ended in a purchase. Searches in the last 90 days moved -9.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $878K a year.
- Searches, last 12 months
- 231K
- Growth, 90 days vs prior 90
- -9.6%
- Conversion, latest week
- 21.0%
- Market size, estimated
- $878Ka year
- Peak month
- January12.8× the quietest month
- Top search term
- ester c96K searches a year
02 · Price
A sale here is worth $18.17.
Listings sell for $18.17 on average, from $6.63 to $28.06. Amazon reports units sold in ranges. This niche sold 50K to 60K a year. The average listing sells 5,000 to 6,000 of them. At $18.17 that is $91K to $109K a year per listing.
- Average price
- $18.17inside the $15 to $100 sweet spot
- Price range
- $6.63–$28.06
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 50K–60K
- Units per listing a year
- 5,000–6,000
- Revenue per listing a year
- $91K–$109K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
80% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #216 within Vitamin C. It carries 11,037 reviews at 4.74 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 80%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #216in Vitamin C
- Average rating
- 4.74 starsAmazon United States average 4.42 stars
- Average reviews
- 11,037per listing
- Listings tracked
- 10
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 Ester C 1000mg Capsules 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 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Ester-C Vitamin C 1000 mg Coated Tablets Immune System Booster Stomach-Friendly Supplement 120 Count
- Price
- $14.66
- Rating
- 4.7/5
- Reviews
- 20,436
- Age
- 18y ago

Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support Gentle On Stomach Non-Acidic Vitamin C - Non-GMO Gluten-Free - 1000 mg 90 Count
- Price
- $20.53
- Rating
- 4.8/5
- Reviews
- 5,675
- Age
- 17y ago

Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count
- Price
- $6.63
- Rating
- 4.8/5
- Reviews
- 8,786
- Age
- 13y ago

American Health Ester-C with Citrus Bioflavonoids Capsules - Gentle On Stomach Non-Acidic Vitamin C - 500 mg 60 Servings 120 Count
- Price
- $13.13
- Rating
- 4.8/5
- Reviews
- 9,974
- Age
- 24y ago

Ester-C Vitamin C 1 000 mg 90 Coated Tablets
- Price
- $13.68
- Rating
- 4.7/5
- Reviews
- 20,436
- Age
- 16y ago
Trending
estimated 90-day click momentum
Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count
- Price
- $6.63
- Rating
- 4.8/5
- Reviews
- 8,786
- Age
- 13y ago

Ester-C Vitamin C 1 000 mg 90 Coated Tablets
- Price
- $13.68
- Rating
- 4.7/5
- Reviews
- 20,436
- Age
- 16y ago

Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) - 180 Tablets - Gentle & Non Acidic - Supports Upper Respiratory Health - Non-GMO Gluten-Free - 180 Servings
- Price
- $26.19
- Rating
- 4.7/5
- Reviews
- 4,089
- Age
- 22y ago

American Health Ester-C with Citrus Bioflavonoids Capsules - Gentle On Stomach Non-Acidic Vitamin C - 500 mg 60 Servings 120 Count
- Price
- $13.13
- Rating
- 4.8/5
- Reviews
- 9,974
- Age
- 24y ago

American Health Ester-C 1000 mg with Bioflavonoids Capsules 24Hour Immune Support Gentle on Stomach NonAcidic Vitamin C NonGMO Gluten-Free Servings Citrus 105 Count
- Price
- $23.90
- Rating
- 4.8/5
- Reviews
- 5,675
- Age
- 5y ago
Newest
by launch date
American Health Ester-C 1000 mg with Bioflavonoids Capsules 24Hour Immune Support Gentle on Stomach NonAcidic Vitamin C NonGMO Gluten-Free Servings Citrus 105 Count
- Price
- $23.90
- Rating
- 4.8/5
- Reviews
- 5,675
- Age
- 5y ago

Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count
- Price
- $6.63
- Rating
- 4.8/5
- Reviews
- 8,786
- Age
- 13y ago

Ester-C Vitamin C 1 000 mg 90 Coated Tablets
- Price
- $13.68
- Rating
- 4.7/5
- Reviews
- 20,436
- Age
- 16y ago

Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support Gentle On Stomach Non-Acidic Vitamin C - Non-GMO Gluten-Free - 1000 mg 90 Count
- Price
- $20.53
- Rating
- 4.8/5
- Reviews
- 5,675
- Age
- 17y ago

Ester-C Vitamin C 1000 mg Coated Tablets Immune System Booster Stomach-Friendly Supplement 120 Count
- Price
- $14.66
- Rating
- 4.7/5
- Reviews
- 20,436
- Age
- 18y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 80% of clicks. A locked shelf that new listings rarely crack.
Brands
3 falling
Sellers
37
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
80%
Top 20: 100%
Open market
0%
- Ester-C62%
- American Health34%
- Solgar4%
Demand
Ester C 1000mg Capsules search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Mar, Dec · busiest ÷ quietest = 12.8×
Search terms
Top Ester C 1000mg Capsules search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- ester c96K/yr
- ester c 1000mg54K/yr
- esterc vitamin c 1000 mg capsules13K/yr
- ester c 1000mg capsules21K/yr
- ester-c13K/yr
- esther c 10005K/yr
- vitamin c ester5K/yr
- esther c5K/yr
- ester-c 1000mg4K/yr
- stomach friendly vitamin c2K/yr
Reviews and returns
What reviews say buyers love and hate about Ester C 1000mg Capsules
We read the reviews and the return reasons for every product selling here.
“They are huge”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
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 Ester C 1000mg Capsules 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









