---
title: "Vitamin C 500mg — $1.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-c-500mg"
last_updated: "2026-08-09T21:47:18.115Z"
locale: en
meta:
description: "Niche score 47/100 · $1.4M/yr market · 602K searches/yr · $11.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $1.4M/yr market · 602K searches/yr · $11.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin C 500mg — $1.4M/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin c 500mg**
**Skip it**
Brand-locked demand (top 5 brands take 94% of clicks) — this niche doesn't clear our bar today.
Market size 85Growth 19Conversion 100Competition 22Returns 100Price range 42Avg price 42Brand share 15Review moat 19Quality gap 15
**Conversion**
**Incredible****21.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Great****$1.4M**
$1.4M/yr · 602K searches
**Avg price**
**Okay****$11.09**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****$5.41–$21.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-12.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****15,889.93**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin c 500mg is a $1.4M/yr Amazon United States market (602K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 47/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin c 500mg market data**
- **Units sold / yr**
- **125K–150K**
- avg 8,000–10,000/product
- **Revenue / yr**
- **$1.4M–$1.7M**
- units × avg price
- **Conversion rate**
- **21.2%**
- **Avg BSR**
- **#89**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **60%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **99 months**
- **Avg seller age**
- **148 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **—flat
**Sellers**
**109**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**2%**
- Nature Made40% - Nature's Bounty23% - Bronson19% - NOW Foods7% - THORNE5% - Nutricost4% - Open — no brand owns it (1 brand, 2%)
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — -12.1% search growth over the last 90 days.
15K10KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-c-500mg/trend)
## **Top vitamin c 500mg search terms**
- **vitamin c 500mg**319K/yr-15.0%21.0% conv. - **vitamin c 500 mg**38K/yr-10.2%17.8% conv. - **vit c 500mg**27K/yr+2.4%17.9% conv. - **vitamin c 500**29K/yr-12.0%17.2% conv. - **natures bounty vitamin c**37K/yr-31.3%11.5% conv. - **vitamin c 500mg capsules**24K/yr+21.9%9.3% conv. - **500 mg vitamin c**17K/yr+2.4%17.3% conv. - **vitamin c capsules 500mg**21K/yr-8.2%5.9% conv. - **500mg vitamin c**12K/yr+26.0%9.7% conv. - **nature made vitamin c 500mg**12K/yr+13.9%24.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-c-500mg/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.
0%10%$142K20%$284K30%$426K40%$567K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Vitamin C 500 mg Tablets for Daily Immune Support Adult Vitamin C Tablets for Immune Support 100 Count 100 Day Supply**Nature Made**$6.15**4.8★8,316 rev](https://www.amazon.com/dp/B018EAPQ38) [2**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4.8★4,035 rev](https://www.amazon.com/dp/B0CJ1294X7) [3**Natures Bounty Vitamin C 500mg Supports a Healthy Immune System Daily Vitamin Supplement 250 Vegetarian Tablets**Nature's Bounty**$10.11**4.7★56,378 rev](https://www.amazon.com/dp/B000GG87V2) [4**NOW Supplements Vitamin C-500 with Rose Hips Antioxidant Protection* 250 Tablets**NOW Foods**$10.09**4.8★6,145 rev](https://www.amazon.com/dp/B0013H7JOY) [5**Nature Made Vitamin C 500 mg with Rose Hips Caplets Vitamin C for Immune Support 130 Caplets 130 Day Supply**Nature Made**$6.97**4.7★31,464 rev](https://www.amazon.com/dp/B0000DJAVX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Natures Bounty Vitamin C 500mg Supports a Healthy Immune System Daily Vitamin Supplement 250 Vegetarian Tablets**Nature's Bounty**$10.11**56,378 rev8mo ago](https://www.amazon.com/dp/B000GG87V2) [**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 100 Tablets**Bronson**$7.86**4,035 rev2y ago](https://www.amazon.com/dp/B0CMY7VHGW) [**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4,035 rev2y ago](https://www.amazon.com/dp/B0CJ1294X7) [**Nutricost Vitamin C 500mg 240 Capsules Vegetarian Gluten Free & Non-GMO**Nutricost**$13.80**795 rev4y ago](https://www.amazon.com/dp/B0B5FY7DKP) [**THORNE - Vitamin C 500 mg - Blend of Vitamin C and Citrus Bioflavonoids from Oranges - Supports Immune System Cellular Energy Production & Collagen Synthesis* - Third-Party Certified - 90 Servings**THORNE**$21.99**3,588 rev4y ago](https://www.amazon.com/dp/B09FYFM7N3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Nature Made Chewable Vitamin C 500 mg for Immune Support 150 Tablets**Nature Made**$11.45**4.7★**▲ 22%**](https://www.amazon.com/dp/B018EAP21O) [**Nature Made Vitamin C 500 mg Tablets for Daily Immune Support Adult Vitamin C Tablets for Immune Support 100 Count 100 Day Supply**Nature Made**$6.15**4.8★**▲ 19%**](https://www.amazon.com/dp/B018EAPQ38) [**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4.8★**▲ 19%**](https://www.amazon.com/dp/B0CJ1294X7) [**NOW Supplements Vitamin C-500 with Rose Hips Antioxidant Protection* 250 Tablets**NOW Foods**$10.09**4.8★**▲ 15%**](https://www.amazon.com/dp/B0013H7JOY) [**THORNE - Vitamin C 500 mg - Blend of Vitamin C and Citrus Bioflavonoids from Oranges - Supports Immune System Cellular Energy Production & Collagen Synthesis* - Third-Party Certified - 90 Servings**THORNE**$21.99**4.8★**▲ 12%**](https://www.amazon.com/dp/B09FYFM7N3)
**~~View all trending →~~**
## **What buyers say about vitamin c 500mg**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“EXCELLENT PRODUCT”*
**Vitamin**21%
*“Quality vitamins”*
**Value For Money**12%
*“Good value for money”*
**Taste-Overall**6%
*“Taste mild”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Ease Of Chewing/Swallowing**5%
*“They are chewable”*
**Immunity Booster**3%
*“it also does a great job of giving your immune system healthy support”*
**Ease Of Use**2%
*“Easy”*
**Size-Overall**2%
*“The PERFECT size and dose”*
**Efficiency**2%
*“It does the job”*
### **What buyers complain about **
**Ease Of Chewing/Swallowing**18%
*“Impossible to swallow”*
**Size-Overall**14%
*“Small size”*
**Taste-Overall**8%
*“Doesn't taste good”*
**Vitamin**7%
*“No vitamin k in it”*
**Sour**4%
*“Tastes like sour gummy bears”*
**Value For Money**3%
*“This is not worth paying it”*
**Bitter**2%
*“Very bitter”*
**Hard Feel**2%
*“rigid with a dark brown felt-like insole that's hard as a rock”*
**Color**2%
*“Only minor complaint is that it could come in more color options”*
**Solubility**1%
*“A good company and vitamin, however, the tablets have no coating at all, allowing them to begin dissolving, leaving a very bitter, sour taste as soon as they touch the tongue and going down the throat”*
### **Top return reasons **
**Ease Of Chewing/Swallowing**35%
**Size-Overall**18%
**Vitamin**12%
**Dosage**12%
**Acid Regulator/Stomach Ache Relief**6%
**Certifications**6%
**Value For Money**6%
**Regulates Digestion**3%
**Heart Health**3%
## **Common questions**
- **Is vitamin c 500mg profitable to sell on Amazon United States?**
- The niche generates $1.4M/yr across 15 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -12.1%. Flapen's verdict: Skip it (47/100).
- **How competitive is the vitamin c 500mg niche?**
- 7 brands and 109 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in vitamin c 500mg?**
- Top complaints mined from reviews: Ease Of Chewing/Swallowing, Size-Overall, Taste-Overall. The return rate is 0.0%.
- **When does demand for vitamin c 500mg peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the vitamin c 500mg niche?**
- Listings span $5.41–$21.99; the average listing price is $11.09 (sweet spot $15–$100). The average incumbent carries 15,890 reviews — the moat a new listing must climb.
## **Related niches in Health & Household**
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)