---
title: "Vitamin C — $24.5M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-c"
last_updated: "2026-08-10T00:04:41.168Z"
locale: en
meta:
description: "Niche score 56/100 · $24.5M/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 56/100 · $24.5M/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 — $24.5M/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin c**
**Worth a look**
Shows a $24.5M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 24Conversion 19Competition 66Returns 99Price range 72Avg price 78Brand share 59Review moat 16Quality gap 16
**Market size**
**Incredible****$24.5M**
$24.5M/yr · 101.0M searches
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$16.28**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$5.68–$38.57**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Growth**
**Bad****-1.2%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.5%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****20,502.36**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, vitamin c is a $24.5M/yr Amazon United States market (101.0M searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Dec. Verdict: Worth a look — 56/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin c market data**
- **Units sold / yr**
- **1.0M–1.0M**
- avg 60,000–80,000/product
- **Revenue / yr**
- **$16.3M–$16.3M**
- units × avg price
- **Conversion rate**
- **1.5%**
- **Avg BSR**
- **#83**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **79%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **137 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **—flat
**Sellers**
**687**
**Top-5 brand share**
**70%**
Top 20: 100%
**Top-5 click share**
**45%**
Top 20: 85%
**Open market**
**25%**
- Nature Made34% - Nature's Bounty17% - Bronson8% - THORNE5% - Sports Research5% - Nutricost5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.2% search growth over the last 90 days.
4.0M3.0MHoliday '24Spike '25Black Friday '25Holiday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Dec · busiest ÷ quietest = 1.9×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-c/trend)
## **Top vitamin c search terms**
- **vitamin c**8.3M/yr-10.9%9.8% conv. - **vitamin c 1000mg**872K/yr-27.1%16.3% conv. - **vitamina c**545K/yr-7.7%3.4% conv. - **vitamina c 1000mg**308K/yr-26.4%4.4% conv. - **vit c**220K/yr-4.9%8.9% conv. - **vitamin c supplement**154K/yr+14.0%9.4% conv. - **nature made vitamin c**141K/yr-24.4%14.8% conv. - **vitamin c tablets**99K/yr+7.2%7.9% conv. - **vitamin c capsules**98K/yr+1.1%4.8% conv. - **vitamin c supplements**63K/yr-5.1%4.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-c/search-terms)
## **Top 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%5%$1.2M10%$2.5M15%$3.7M20%$4.9M1001K10K100K 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 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) [3**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) [4**Nutricost Vitamin C with Rose Hips 1025mg 240 Capsules Gluten Free**Nutricost**$17.14**4.8★24,028 rev](https://www.amazon.com/dp/B074GCB1ND) [5**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)
**~~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) [**EQQUALBERRY Vitamin Illuminating Serum | Niacinamide 4% & TXA | Brightening Vitamin C Serum for Face Glow with Hyaluronic Acid | Dark Spot & Uneven Tone Care | Korean Skincare 1.01 fl oz**EQQUALBERRY**$18.14**16,065 rev2y ago](https://www.amazon.com/dp/B0D8W1YVBX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**THORNE - Vitamin C 1 000 mg Supplement - Supports Healthy Immune Function & Collagen Formation - Provides Antioxidant Benefits* - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules**THORNE**$18.65**4.8★**▲ 81%**](https://www.amazon.com/dp/B09FYHTSNW) [**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★**▲ 66%**](https://www.amazon.com/dp/B018EAPQ38) [**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4.8★**▲ 60%**](https://www.amazon.com/dp/B0CJ1294X7) [**EQQUALBERRY Vitamin Illuminating Serum | Niacinamide 4% & TXA | Brightening Vitamin C Serum for Face Glow with Hyaluronic Acid | Dark Spot & Uneven Tone Care | Korean Skincare 1.01 fl oz**EQQUALBERRY**$18.14**4.3★**▲ 55%**](https://www.amazon.com/dp/B0D8W1YVBX) [**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★**▲ 35%**](https://www.amazon.com/dp/B005P0MK1M)
**~~View all trending →~~**
## **What buyers say about vitamin c**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“the quality is consistent”*
**Vitamin**11%
*“Quality Vitamins”*
**Suitability Combination Skin**8%
*“Good for skin”*
**Value For Money**7%
*“Great deal”*
**Soft Feel**6%
*“Leaves skin soft”*
**Brightness/Shine/Glow**5%
*“has a natural glow”*
**Advertised Vs Actual Product**3%
*“As advertised”*
**Moist/Dry**3%
*“Good moisturizer”*
**Efficiency**3%
*“Works perfectly”*
**Taste-Overall**2%
*“Taste mild”*
### **What buyers complain about **
**Functionality-Overall**19%
*“No results”*
**Allergies**7%
*“Skin irritation”*
**Symptom Reduction**7%
*“No improvement”*
**Value For Money**6%
*“Way too expensive”*
**Size-Overall**6%
*“Too tiny”*
**Skin Health**4%
*“Irritated skin”*
**Advertised Vs Actual Product**4%
*“Fake advertising”*
**Ease Of Chewing/Swallowing**3%
*“Impossible to swallow”*
**Quality-Overall**3%
*“Failed quality control”*
**Vitamin**2%
*“No vitamin k in it”*
### **Top return reasons **
**Functionality-Overall**21%
**Advertised Vs Actual Product**12%
**Value For Money**11%
**Texture/Consistency-Overall**5%
**Skin Health**4%
**Adhesion/Stickiness**4%
**Product Condition**3%
**Size-Overall**3%
**Smell**3%
**Leak-Proof**3%
## **Common questions**
- **Is vitamin c profitable to sell on Amazon United States?**
- The niche generates $24.5M/yr across 33 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -1.2%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the vitamin c niche?**
- 18 brands and 687 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in vitamin c?**
- Top complaints mined from reviews: Functionality-Overall, Allergies, Symptom Reduction. The return rate is 0.2%.
- **When does demand for vitamin c peak?**
- Demand peaks in Dec; the busiest month runs 1.9× the quietest.
- **What does it cost to enter the vitamin c niche?**
- Listings span $5.68–$38.57; the average listing price is $16.28 (sweet spot $15–$100). The average incumbent carries 20,502 reviews — the moat a new listing must climb.
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