Immune C
FailThe top 5 brands take 100% of clicks, so Immune C is a Fail.
- Flapen Score
- 41 / 100Ranks 11,806 of 14,768 Health & Household niches · −8 vs the category median of 4941
- Market size
- $220K/yr109K searches / yr
- 90-day growth
- -13.5%search demand this quarter
- Competition
- 82%top-5 click share · 4 brands · 67 sellers
Flapen Score
Immune C against its category
The dotted line is the Health & Household average. Past it, Immune C is stronger. Inside it, weaker.
Market
The Immune C market on Amazon at a glance
Shoppers on Amazon United States searched for Immune C 109K times last year and spent an estimated $220K. All 4 brands take every click. Demand peaks in Apr–May–Jun–Jul. Flapen scores it 41 out of 100, a Fail.
01 · Demand
An estimated 10.5% of those searches ended in a purchase.
Shoppers searched for this 109K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.5% of those searches ended in a purchase. Searches in the last 90 days moved -13.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $220K a year.
- Searches, last 12 months
- 109K
- Growth, 90 days vs prior 90
- -13.5%
- Conversion, latest week
- 10.5%
- Market size, estimated
- $220Ka year
- Peak month
- May2.8× the quietest month
- Top search term
- emergen c raspberry15K searches a year
02 · Price
A sale here is worth $19.14.
Listings sell for $19.14 on average, from $8.57 to $27.51. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 1,250 to 1,500 of them. At $19.14 that is $24K to $29K a year per listing.
- Average price
- $19.14inside the $15 to $100 sweet spot
- Price range
- $8.57–$27.51
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 15K–20K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- $24K–$29K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
91% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.5% of listings are out of stock. The average listing ranks #100 within Vitamin C. It carries 8,818 reviews at 4.74 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 100%
- Out of stock, average day
- 4.5%
- Average rank
- #100in Vitamin C
- Average rating
- 4.74 starsAmazon United States average 4.42 stars
- Average reviews
- 8,818per listing
- Listings tracked
- 11
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 76 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
- 76 months
Products
Top Immune 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 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Emergen-C Vitamin C 1000mg Immune Support Powder Raspberry 30 Packets
- Price
- $12.03
- Rating
- 4.8/5
- Reviews
- 19,561
- Age
- 27y ago

Emergen-C Immune+ Triple Action Immune Support Powder BetaVia (R) 1000mg Vitamin C B Vitamins Vitamin D and Antioxidants Raspberry Back to School Essentials 30 Count
- Price
- $12.89
- Rating
- 4.8/5
- Reviews
- 16,184
- Age
- 11y ago

Emergen-C Vitamin C 1000mg Immune Support Powder Raspberry 60 Packets
- Price
- $25.60
- Rating
- 4.8/5
- Reviews
- 7,590
- Age
- 8y ago

KAPPA NUTRITION Immune C Plus 14 in 1 Advanced Complex | 1 000 mg Non-Acidic Vitamin C + Quercetin + Vitamin D3 5 000 IU + Vitamin K2 MK-7 + Zinc Selenium & Copper | 120 Capsules
- Price
- $27.51
- Rating
- 4.7/5
- Reviews
- 4,044
- Age
- 2y ago

Emergen-C Vitamin C 1000mg Immune Support Raspberry Lemonade 36 Packets
- Price
- $23.93
- Rating
- 4.7/5
- Reviews
- 1,027
- Age
- 2y ago
Trending
estimated 90-day click momentum
Country Farms Immune Defense Superfoods Immune Support Supplement Vitamin C with Black Elderberry Echinacea Turmeric Supports Hydration with Probiotics and Prebiotics Berry Flavor 60 Servings
- Price
- $20.39
- Rating
- 4.5/5
- Reviews
- 1,807
- Age
- 1y ago

Emergen-C Vitamin C 1000mg Immune Support Raspberry Lemonade 36 Packets
- Price
- $23.93
- Rating
- 4.7/5
- Reviews
- 1,027
- Age
- 2y ago

Emergen-C Vitamin C 1000mg Immune Support Powder Raspberry 60 Packets
- Price
- $25.60
- Rating
- 4.8/5
- Reviews
- 7,590
- Age
- 8y ago

KAPPA NUTRITION Immune C Plus 14 in 1 Advanced Complex | 1 000 mg Non-Acidic Vitamin C + Quercetin + Vitamin D3 5 000 IU + Vitamin K2 MK-7 + Zinc Selenium & Copper | 120 Capsules
- Price
- $27.51
- Rating
- 4.7/5
- Reviews
- 4,044
- Age
- 2y ago

KAPPA NUTRITION Immune C Plus 14 in 1 Advanced Complex | 1 000 mg Non-Acidic Vitamin C + Quercetin + Vitamin D3 5 000 IU + Vitamin K2 MK-7 + Zinc Selenium & Copper | 90 Capsules
- Price
- $22.01
- Rating
- 4.7/5
- Reviews
- 4,044
- Age
- 5y ago
Newest
by launch date
Country Farms Immune Defense Superfoods Immune Support Supplement Vitamin C with Black Elderberry Echinacea Turmeric Supports Hydration with Probiotics and Prebiotics Berry Flavor 60 Servings
- Price
- $20.39
- Rating
- 4.5/5
- Reviews
- 1,807
- Age
- 1y ago

Emergen-C Vitamin C 1000mg Immune Support Raspberry Lemonade 36 Packets
- Price
- $23.93
- Rating
- 4.7/5
- Reviews
- 1,027
- Age
- 2y ago

KAPPA NUTRITION Immune C Plus 14 in 1 Advanced Complex | 1 000 mg Non-Acidic Vitamin C + Quercetin + Vitamin D3 5 000 IU + Vitamin K2 MK-7 + Zinc Selenium & Copper | 120 Capsules
- Price
- $27.51
- Rating
- 4.7/5
- Reviews
- 4,044
- Age
- 2y ago

Natures Bounty Immune 24 Hour + The only Vitamin C with 24 Hour Immune Support from Ester-C 1000 mg Vitamin C D & Zinc Gluten Free Rapid Release Softgels 2 Softgels per Day 50 Count
- Price
- $8.57
- Rating
- 4.8/5
- Reviews
- 5,561
- Age
- 4y ago

KAPPA NUTRITION Immune C Plus 14 in 1 Advanced Complex | 1 000 mg Non-Acidic Vitamin C + Quercetin + Vitamin D3 5 000 IU + Vitamin K2 MK-7 + Zinc Selenium & Copper | 60 Capsules
- Price
- $16.67
- Rating
- 4.7/5
- Reviews
- 4,044
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 82% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
67
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
82%
Top 20: 100%
Open market
0%
- Emergen-C79%
- KAPPA NUTRITION15%
- Country Farms4%
- Nature's Bounty2%
Demand
Immune C search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.8×
Search terms
Top Immune C search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- emergen c raspberry15K/yr
- immunity powder10K/yr
- emergen c raspberry flavor5K/yr
- immune c14K/yr
- immunity drink mix6K/yr
- raspberry emergency c packets9K/yr
- immune defense powder5K/yr
- immunity supplement powder4K/yr
- immune c plus7K/yr
- immunity packets5K/yr
Reviews and returns
What reviews say buyers love and hate about Immune C
We read the reviews and the return reasons for every product selling here.
“Tastes terrible”
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.
16 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 Immune 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









