---
title: "Vitamin C Bulk — $47K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-c-bulk"
last_updated: "2026-08-09T16:42:52.645Z"
locale: en
meta:
description: "Niche score 44/100 · $47K/yr market · 19K searches/yr · $22.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $47K/yr market · 19K searches/yr · $22.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin C Bulk — $47K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin c bulk**
**Skip it**
A small market ($47K/yr) — this niche doesn't clear our bar today.
Market size 12Growth 20Conversion 91Competition 34Returns 100Price range 84Avg price 93Brand share 25Review moat 23Quality gap 21
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.07**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****11.0%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$9.47–$48.02**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****7,777.47**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-9.3%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$47K**
$47K/yr · 19K searches
According to Flapen's Amazon United States niche tracking, vitamin c bulk is a $47K/yr Amazon United States market (19K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 44/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin c bulk market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$44K–$55K**
- units × avg price
- **Conversion rate**
- **11.0%**
- **Avg BSR**
- **#205**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **89%**
- **Out of stock**
- **3.4%**
- **Avg brand age**
- **132 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **—flat
**Sellers**
**53**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 100%
**Open market**
**8%**
- BulkSupplements71% - Emergen-C6% - Earthborn Elements5% - Luonix4% - PURE ORIGINAL INGREDIENTS4% - Bronson2% - Open — no brand owns it (5 brands, 8%)
## **Demand**
Weekly Amazon search volume, last 17 weeks — -9.3% search growth over the last 90 days.
400300Apr '26Apr '26May '26May '26May '26Jun '26Jun '26Jul '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-c-bulk/trend)
## **Top vitamin c bulk search terms**
- **vitamin c bulk**5K/yr-0.2%7.0% conv. - **bulk supplements vitamin c**5K/yr-9.3%13.5% conv. - **bulk vitamin c**3K/yr-0.5%6.7% conv. - **ester c powder**4K/yr-18.3%2.6% conv. - **vitamin c bulk supplements**2K/yr-24.1%15.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/vitamin-c-bulk/search-terms)
## **Top vitamin c bulk 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%$5K20%$9K30%$14K40%$19K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**BulkSupplements.com Ascorbic Acid Powder - Vitamin C Supplement for Immune Support - Ascorbic Acid Food Grade Gluten Free 1g per Serving 500g (1.1 lbs) (Pack of 1)**BulkSupplements**$22.26**4.6★9,102 rev](https://www.amazon.com/dp/B00AYIM9ZC) [2**BulkSupplements.com Ascorbic Acid Capsules - Ascorbic Acid Vitamin C 1000mg Vitamin C Supplement - Vegan & Gluten Free 2 Capsules per Serving 360 Count (Pack of 1)**BulkSupplements**$20.21**4.8★187 rev](https://www.amazon.com/dp/B0CFWTRQSL) [3**BulkSupplements.com Vitamin C with Zinc Capsules - Vitamin C 1000mg & Zinc 15mg for Immune Support - Vegan 2 Capsules per Serving 360 Veg Count (Pack of 1)**BulkSupplements**$19.34**4.6★210 rev](https://www.amazon.com/dp/B0BSGBFVWQ) [4**BulkSupplements.com Vitamin C with Rose Hips Capsules - Ascorbic Acid Supplemnet Rose Hips for Immune Support - Vegan 2 Capsules per Serving (1000mg) 360 Count (Pack of 1)**BulkSupplements**$18.74**4.7★544 rev](https://www.amazon.com/dp/B0BSG8VFQH) [5**BulkSupplements.com Ascorbic Acid Powder - Vitamin C Supplement for Immune Support - Ascorbic Acid Food Grade Gluten Free 1g per Serving 1kg (2.2 lbs) (Pack of 1)**BulkSupplements**$24.64**4.6★9,102 rev](https://www.amazon.com/dp/B00AYIM9Y8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Luonix Vitamin C Powder 8 Lb**Luonix**$40.11**287 rev2y ago](https://www.amazon.com/dp/B0CS8M7R97) [**BulkSupplements.com Vitamin C with Zinc Capsules - Vitamin C 1000mg & Zinc 15mg for Immune Support - Vegan 2 Capsules per Serving 360 Veg Count (Pack of 1)**BulkSupplements**$19.34**210 rev2y ago](https://www.amazon.com/dp/B0BSGBFVWQ) [**BulkSupplements.com Vitamin C with Rose Hips Capsules - Ascorbic Acid Supplemnet Rose Hips for Immune Support - Vegan 2 Capsules per Serving (1000mg) 360 Count (Pack of 1)**BulkSupplements**$18.74**544 rev2y ago](https://www.amazon.com/dp/B0BSG8VFQH) [**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) [**BulkSupplements.com Ascorbic Acid Capsules - Ascorbic Acid Vitamin C 1000mg Vitamin C Supplement - Vegan & Gluten Free 2 Capsules per Serving 360 Count (Pack of 1)**BulkSupplements**$20.21**187 rev2y ago](https://www.amazon.com/dp/B0CFWTRQSL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Bronson Vitamin C 500 mg Immune & Antioxidant Support Non-GMO 250 Tablets**Bronson**$9.79**4.8★**▲ 149%**](https://www.amazon.com/dp/B0CJ1294X7) [**BulkSupplements.com Vitamin C with Zinc Capsules - Vitamin C 1000mg & Zinc 15mg for Immune Support - Vegan 2 Capsules per Serving 360 Veg Count (Pack of 1)**BulkSupplements**$19.34**4.6★**▲ 97%**](https://www.amazon.com/dp/B0BSGBFVWQ) [**Nutricost Ascorbic Acid Powder (Vitamin C) 2 LBS - Gluten Free Non-GMO**Nutricost**$26.49**4.7★**▲ 72%**](https://www.amazon.com/dp/B00ZVNCXOM) [**BulkSupplements.com Ascorbic Acid Powder - Vitamin C Supplement for Immune Support - Ascorbic Acid Food Grade Gluten Free 1g per Serving 500g (1.1 lbs) (Pack of 1)**BulkSupplements**$22.26**4.6★**▲ 60%**](https://www.amazon.com/dp/B00AYIM9ZC) [**PURE ORIGINAL INGREDIENTS Vitamin C Powder (1 lb) Ascorbic Acid Non GMO Dietary Supplement**PURE ORIGINAL INGREDIENTS**$9.47**4.6★**▲ 45%**](https://www.amazon.com/dp/B07663FG95)
**~~View all trending →~~**
## **What buyers say about vitamin c bulk**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**18%
*“Good vitamin”*
**Value For Money**14%
*“Good Price”*
**Quality-Overall**12%
*“good reviews etc so I figured I would give it a try”*
**Taste-Overall**9%
*“This is pure about as pure tasting as I can get”*
**Advertised Vs Actual Product**5%
*“AS ADVERTISED”*
**Immunity Booster**5%
*“are great to boost your immunity”*
**Cold Relief**4%
*“it keeps me from getting colds”*
**Ease Of Chewing/Swallowing**3%
*“The capsules are easy to take”*
**Flavor**3%
*“Nice to have on had, flavor enhancer”*
**Efficiency**3%
*“Very effective”*
### **What buyers complain about **
**Vitamin**10%
*“This vitamin c is terrible”*
**Taste-Overall**8%
*“Weird creamy taste”*
**Functionality-Overall**5%
*“Doesnt work”*
**Size-Overall**5%
*“4 stars because the bottle aint large enough for my plans”*
**Flavor**4%
*“No flavor”*
**Quality-Overall**4%
*“Garbage”*
**Color**4%
*“the yellow and green coloration completely disappeared”*
**Stain Resistance**4%
*“Stains disappeared before our eyes”*
**Advertised Vs Actual Product**3%
*“Inaccurate / incomplete website description”*
**Ingredients-Overall**2%
*“This vitamin c is terrible”*
### **Top return reasons **
**Value For Money**57%
**Taste-Overall**14%
**Dosage**14%
**Quality-Overall**14%
## **Common questions**
- **Is vitamin c bulk profitable to sell on Amazon United States?**
- The niche generates $47K/yr across 19 tracked products. 90-day search growth is -9.3%. Flapen's verdict: Skip it (44/100).
- **How competitive is the vitamin c bulk niche?**
- 11 brands and 53 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in vitamin c bulk?**
- Top complaints mined from reviews: Vitamin, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
- **What does it cost to enter the vitamin c bulk niche?**
- Listings span $9.47–$48.02; the average listing price is $22.07 (sweet spot $15–$100). The average incumbent carries 7,777 reviews — the moat a new listing must climb.
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