---
title: "Ascorbate Vitamin C — $995K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/ascorbate-vitamin-c"
last_updated: "2026-08-09T07:19:47.085Z"
locale: en
meta:
description: "Niche score 46/100 · $995K/yr market · 236K searches/yr · $18.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $995K/yr market · 236K searches/yr · $18.46 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Ascorbate Vitamin C — $995K/yr Amazon US Niche (2026) - Flapen"
---
# **ascorbate vitamin c**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 78Growth 19Conversion 100Competition 16Returns 100Price range 58Avg price 84Brand share 0Review moat 23Quality gap 14
**Conversion**
**Incredible****22.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$18.46**
avg listing price — sweet spot $15–$100
**Market size**
**Great****$995K**
$995K/yr · 236K searches
**Price range**
**Good****$6.63–$26.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Bad****7,601.75**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-12.5%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.8★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, ascorbate vitamin c is a $995K/yr Amazon United States market (236K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Apr–May. Verdict: Skip it — 46/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ascorbate vitamin c market data**
- **Units sold / yr**
- **60K–80K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$1.1M–$1.5M**
- units × avg price
- **Conversion rate**
- **22.8%**
- **Avg BSR**
- **#403**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **58%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **116 months**
- **Avg seller age**
- **154 days**
## **Competition & brand share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **—flat
**Sellers**
**112**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**0%**
- Ester-C51% - American Health37% - Solgar10% - Pure Encapsulations2%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — -12.5% search growth over the last 90 days.
7K5KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Apr, May · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/health-household/ascorbate-vitamin-c/trend)
## **Top ascorbate vitamin c search terms**
- **ester c**96K/yr-7.3%18.6% conv. - **ester c 500mg**73K/yr-12.6%28.2% conv. - **ester-c**13K/yr+7.3%8.4% conv. - **ester c 500mg capsules**8K/yr-17.9%23.0% conv. - **ester-c 500mg**4K/yr-4.5%30.5% conv. - **non acidic vitamin c**4K/yr-16.3%3.9% conv. - **vitamin c ester**5K/yr-9.3%12.2% conv. - **esther c**5K/yr-23.2%22.9% conv. - **solgar ester c 500mg**4K/yr+1.8%22.9% conv. - **ester c 500 mg**3K/yr-0.6%28.5% conv. [**All search terms **](https://flapen.com/research/us/health-household/ascorbate-vitamin-c/search-terms)
## **Top ascorbate vitamin c 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%$99K20%$199K30%$298K40%$398K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count**Ester-C**$6.63**4.8★8,786 rev](https://www.amazon.com/dp/B004X8MJM2) [2**Ester-C Vitamin C 1000 mg Coated Tablets Immune System Booster Stomach-Friendly Supplement 120 Count**Ester-C**$14.66**4.7★20,436 rev](https://www.amazon.com/dp/B0013FYHSW) [3**American Health Ester-C with Citrus Bioflavonoids Capsules - Gentle On Stomach Non-Acidic Vitamin C - 500 mg 60 Servings 120 Count**American Health**$13.13**4.8★9,974 rev](https://www.amazon.com/dp/B000OP6VY0) [4**American Health Ester-C with Citrus Bioflavonoids Capsules - 24-Hour Immune Support Gentle On Stomach Non-Acidic Vitamin C - Non-GMO Gluten-Free - 500 mg 240 Count 120 Servings**American Health**$24.69**4.8★9,974 rev](https://www.amazon.com/dp/B000WKSZ7S) [5**Solgar Ester-C Plus 500 mg Vitamin C (Ascorbate Complex) 250 Vegetable Capsules - Gentle & Non Acidic - Antioxidant & Immune Support - Non GMO Vegan Gluten Free Kosher - 250 Servings**Solgar**$20.11**4.8★4,547 rev](https://www.amazon.com/dp/B00014DNJU)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count**Ester-C**$6.63**8,786 rev13y ago](https://www.amazon.com/dp/B004X8MJM2) [**Ester-C Vitamin C 1 000 mg 90 Coated Tablets**Ester-C**$13.68**20,436 rev16y ago](https://www.amazon.com/dp/B002ZG8DJC) [**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**American Health**$20.53**5,675 rev17y ago](https://www.amazon.com/dp/B072KCDJJP) [**American Health Ester-C Vitamin C 500 mg Coated Tablets Immune System Booster Stomach-Friendly Supplement 225 Count**American Health**$17.53**1,094 rev18y ago](https://www.amazon.com/dp/B0019GTY9W) [**Pure Encapsulations Ester-C & Flavonoids - Vitamin C Supplement for Antioxidants - Immune & Vascular Support* with Calcium & Rutin - Gentle on Digestion - Vegan & Non-GMO - 90 Capsules**Pure Encapsulations**$26.55**1,164 rev18y ago](https://www.amazon.com/dp/B0017LE35O)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ester-C 500 mg 24 Hour Vitamin C Tablets for Immune Support Vitamin C Supplement 90 Count**Ester-C**$6.63**4.8★**▲ 31%**](https://www.amazon.com/dp/B004X8MJM2) [**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**Solgar**$26.19**4.7★**▲ 16%**](https://www.amazon.com/dp/B00020IBC2) [**Solgar Ester-C Plus 500 mg Vitamin C (Ascorbate Complex) 250 Vegetable Capsules - Gentle & Non Acidic - Antioxidant & Immune Support - Non GMO Vegan Gluten Free Kosher - 250 Servings**Solgar**$20.11**4.8★**— 2%**](https://www.amazon.com/dp/B00014DNJU) [**Ester-C Vitamin C 1 000 mg 90 Coated Tablets**Ester-C**$13.68**4.7★**— 1%**](https://www.amazon.com/dp/B002ZG8DJC) [**Pure Encapsulations Ester-C & Flavonoids - Vitamin C Supplement for Antioxidants - Immune & Vascular Support* with Calcium & Rutin - Gentle on Digestion - Vegan & Non-GMO - 90 Capsules**Pure Encapsulations**$26.55**4.8★**— 5%**](https://www.amazon.com/dp/B0017LE35O)
**~~View all trending →~~**
## **What buyers say about ascorbate vitamin c**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**25%
*“Best vitamins”*
**Acid Regulator/Stomach Ache Relief**14%
*“Great and no stomach cramps”*
**Quality-Overall**11%
*“Excellent product”*
**Ease Of Chewing/Swallowing**7%
*“EASY TO SWALLOW”*
**Value For Money**6%
*“Value for money”*
**Advertised Vs Actual Product**5%
*“Does exactly as advertised”*
**Immunity Booster**4%
*“Good immune support”*
**Cold Relief**3%
*“it can keep you away from colds and flu”*
**Regulates Digestion**3%
*“because it does not cause digestive problem like some Vitamin C products do”*
**Nutritional Content**1%
*“Keep you healthy”*
### **What buyers complain about **
**Size-Overall**29%
*“They are huge”*
**Ease Of Chewing/Swallowing**19%
*“Too big for me to swallow”*
**Vitamin**6%
*“Do not buy vitamins”*
**Dosage**4%
*“Difficult to find the 500mg”*
**Heart Health**4%
*“If something that is supposed to maintain health makes you feel worse”*
**Ingredients-Overall**4%
*“This product did not show other ingredients on the label that was shown on the item page”*
**Vegan/Organic**3%
*“Not Kosher/Halal”*
**Side Effects**3%
*“I have consumed it for more than 3 weeks”*
**Hard Feel**3%
*“They are also hard like a rock”*
**Value For Money**3%
*“Waste of money”*
### **Top return reasons **
**Value For Money**50%
**Ingredients-Overall**25%
**Advertised Vs Actual Product**17%
**Side Effects**8%
## **Common questions**
- **Is ascorbate vitamin c profitable to sell on Amazon United States?**
- The niche generates $995K/yr across 12 tracked products. 90-day search growth is -12.5%. Flapen's verdict: Skip it (46/100).
- **How competitive is the ascorbate vitamin c niche?**
- 4 brands and 112 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in ascorbate vitamin c?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Vitamin. The return rate is 0.0%.
- **When does demand for ascorbate vitamin c peak?**
- Demand peaks in Jan–Apr–May; the busiest month runs 3.2× the quietest.
- **What does it cost to enter the ascorbate vitamin c niche?**
- Listings span $6.63–$26.55; the average listing price is $18.46 (sweet spot $15–$100). The average incumbent carries 7,602 reviews — the moat a new listing must climb.
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