---
title: "Vitamin C Capsules — $443K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-c-capsules"
last_updated: "2026-08-10T02:55:41.423Z"
locale: en
meta:
description: "Niche score 60/100 · $443K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 60/100 · $443K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Vitamin C Capsules — $443K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin c capsules**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 57Growth 19Conversion 86Competition 81Returns 100Price range 79Avg price 78Brand share 70Review moat 21Quality gap 16
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.8%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Great****34%**
top-5 click share — an open shelf
**Price range**
**Great****$5.41–$52.65**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$16.22**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****63%**
top-5 brand share — brands hold most of the demand
**Market size**
**Good****$443K**
$443K/yr · 280K searches
**Review moat**
**Bad****10,625.56**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-11.4%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, vitamin c capsules is a $443K/yr Amazon United States market (280K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Aug. Verdict: Worth a look — 60/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin c capsules market data**
- **Units sold / yr**
- **30K–40K**
- avg 500–750/product
- **Revenue / yr**
- **$487K–$649K**
- units × avg price
- **Conversion rate**
- **9.8%**
- **Avg BSR**
- **#250**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **76%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **86 months**
- **Avg seller age**
- **138 days**
## **Competition & brand share**
Clicks spread well past the top 5 (34% combined) — an open shelf where new products get seen.
**Brands**
**27 **▲rising
**Sellers**
**694**
**Top-5 brand share**
**63%**
Top 20: 96%
**Top-5 click share**
**34%**
Top 20: 77%
**Open market**
**32%**
- Nature Made26% - Nature's Bounty14% - NatureWise10% - Bronson7% - NOW Foods6% - Nutricost5%
## **Demand & seasonality**
Weekly Amazon search volume, last 99 weeks — -11.4% search growth over the last 90 days.
35K25KSpike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 3.0×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-c-capsules/trend)
## **Top vitamin c capsules search terms**
- **vitamin c 1000mg capsules**40K/yr-19.7%10.9% conv. - **vitamin c pills**41K/yr-18.4%12.9% conv. - **vitamin c gel capsules**21K/yr-6.1%8.9% conv. - **vitamin c capsules 1000mg**24K/yr-12.4%11.7% conv. - **vitamin c softgels**18K/yr-6.0%7.5% conv. - **vegan vitamin c**18K/yr+12.8%3.8% conv. - **vitamin c pill**11K/yr+17.0%7.2% conv. - **vitamin c gel**12K/yr-16.2%4.2% conv. - **vitamin c vegan**10K/yr+9.7%4.8% conv. - **vitamin c 1000mg tablets**12K/yr-38.6%9.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-c-capsules/search-terms)
## **Top vitamin c capsules 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%2%$9K4%$18K6%$27K8%$35K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nature Made Extra Strength Vitamin C 1000 mg Tablets Adult Vitamin C Tablets for Immune Support 100 Count 100 Day Supply**Nature Made**$8.79**4.8★40,559 rev](https://www.amazon.com/dp/B0000DJASY) [2**Nature Made Vitamin C 500 mg for Daily Immune Support 60 Softgels**Nature Made**$10.07**4.6★3,117 rev](https://www.amazon.com/dp/B00I689DHY) [3**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) [4![NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 120 Capsules[120-Day Supply]](https://m.media-amazon.com/images/I/41wKvaxrV0L.jpg)**NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 120 Capsules\[120-Day Supply\]**NatureWise**$8.98**4.7★2,802 rev](https://www.amazon.com/dp/B0DB3MDK8B) [5**Natures Bounty Vitamin C + Rose Hips Immune Support 1000mg Vitamin C Coated Caplets 1 Serving per Day Vegetarian Caplets 100 Ct**Nature's Bounty**$7.46**4.8★49,486 rev](https://www.amazon.com/dp/B0019GE9HE)
**~~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 1000mg Extra Strength Supports a Healthy Immune System High Potency Non-GMO 100 Vegetarian Tablets**Bronson**$10.03**773 rev1y ago](https://www.amazon.com/dp/B087LZLYPW) [![NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 120 Capsules[120-Day Supply]](https://m.media-amazon.com/images/I/41wKvaxrV0L.jpg)**NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 120 Capsules\[120-Day Supply\]**NatureWise**$8.98**2,802 rev1y ago](https://www.amazon.com/dp/B0DB3MDK8B) [![NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 60 Capsules[60-Day Supply]](https://m.media-amazon.com/images/I/41EFnRtJ5bL.jpg)**NatureWise Vitamin C 1000mg Capsules - Extra Strength Vegan Vitamin C for Daily Antioxidant & Immune Support - Non-GMO USA Manufactured - 60 Capsules\[60-Day Supply\]**NatureWise**$6.67**2,802 rev2y ago](https://www.amazon.com/dp/B0DB3TY2ML) [**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)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Vitamin C 1000mg | Immune Support | Timed-Release Capsules | 1 Year Supply | Vitamin C Supplement with Acerola Cherry & Rose Hips | Daily Antioxidant & Wellness Support | Vegan Non-GMO | 365 Ct**Purely Holistic**$26.86**4.7★**▲ 108%**](https://www.amazon.com/dp/B0843GPB9L) [**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4.8★**▲ 92%**](https://www.amazon.com/dp/B0CJ1294X7) [**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★**▲ 72%**](https://www.amazon.com/dp/B018EAPQ38) [**Natures Bounty Vitamin C 1000mg Immune Support Supplement Powerful Antioxidant 1 Pack 100 Caplets**Nature's Bounty**$5.68**4.7★**▲ 43%**](https://www.amazon.com/dp/B0061GLRN6) [**SOLARAY Vitamin C 1000mg - Time Release Vitamin C Capsules w/Rose HIPS and Acerola for Bioflavonoid Support - Two-Stage All-Day Immune Support - Vegan 60 Day Guarantee**SOLARAY**$15.44**4.8★**▲ 34%**](https://www.amazon.com/dp/B005P0MK1M)
**~~View all trending →~~**
## **What buyers say about vitamin c capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**22%
*“Great vitamin”*
**Quality-Overall**19%
*“EXCELLENT PRODUCT”*
**Value For Money**11%
*“fair price”*
**Ease Of Chewing/Swallowing**5%
*“Very chewable”*
**Taste-Overall**4%
*“Excellent taste”*
**Advertised Vs Actual Product**4%
*“Works as intended”*
**Immunity Booster**4%
*“support immune system”*
**Ease Of Use**3%
*“Ease of use”*
**Cold Relief**3%
*“Helps with cold”*
**Acid Regulator/Stomach Ache Relief**2%
*“No stomach issues”*
### **What buyers complain about **
**Size-Overall**17%
*“Small size”*
**Ease Of Chewing/Swallowing**10%
*“Impossible to swallow”*
**Taste-Overall**10%
*“Didnt like the taste”*
**Vitamin**7%
*“Not the vitamins I wanted”*
**Quality-Overall**2%
*“Failed quality control”*
**Dosage**2%
*“While the dosage may be a bit high for some users”*
**Value For Money**2%
*“Too expensive”*
**Adhesion/Stickiness**2%
*“Gooey, melty, sticky”*
**Acid Regulator/Stomach Ache Relief**2%
*“my stomach was upset”*
**Ingredients-Overall**2%
*“The ingredients on this item are misleading”*
### **Top return reasons **
**Ease Of Chewing/Swallowing**33%
**Size-Overall**11%
**Vitamin**10%
**Dosage**7%
**Advertised Vs Actual Product**6%
**Taste-Overall**4%
**Functionality-Overall**4%
**Certifications**4%
**Joint Pain**2%
**Value For Money**2%
## **Common questions**
- **Is vitamin c capsules profitable to sell on Amazon United States?**
- The niche generates $443K/yr across 50 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -11.4%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the vitamin c capsules niche?**
- 27 brands and 694 sellers compete. The top 5 products take 34% of clicks and top 5 brands hold 63% of demand.
- **What do buyers complain about in vitamin c capsules?**
- Top complaints mined from reviews: Size-Overall, Ease Of Chewing/Swallowing, Taste-Overall. The return rate is 0.0%.
- **When does demand for vitamin c capsules peak?**
- Demand peaks in Aug; the busiest month runs 3.0× the quietest.
- **What does it cost to enter the vitamin c capsules niche?**
- Listings span $5.41–$52.65; the average listing price is $16.22 (sweet spot $15–$100). The average incumbent carries 10,626 reviews — the moat a new listing must climb.
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