---
title: "vitamin c serum — $16.1M/yr Amazon United States Niche, Score 71/100 - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/vitamin-c-serum"
last_updated: "2026-07-20T21:15:26.302Z"
locale: en
meta:
description: "vitamin c serum shows a $16.1M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "vitamin c serum shows a $16.1M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "vitamin c serum — $16.1M/yr Amazon United States Niche, Score 71/100 - Flapen"
---
# **vitamin c serum**
**Worth a look**
Shows a $16.1M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 100Growth 23Conversion 84Competition 76Returns 96Price range 78Avg price 85Brand share 88Review moat 14Quality gap 50
**Market size**
**Incredible****$16.1M**
$16.1M/yr · 9.1M searches
**Returns**
**Incredible****0.8%**
return rate — above 6% kills the launch gate
**Brand share**
**Great****47%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****$19.17**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$6.62–$45.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-4.2%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****24,473.95**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, vitamin c serum is a $16.1M/yr Amazon United States market (9.1M searches/yr). The top 5 brands hold 47% of demand. Verdict: Worth a look — 71/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **Market data**
- **Units sold / yr**
- **800K–1.0M**
- avg 15,000–20,000/product
- **Revenue / yr**
- **$15.3M–$19.2M**
- units × avg price
- **Launch success**
- **—**
- 4 of 4 new (360d)
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#92**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **3.4%**
- **Avg brand age**
- **54 months**
- **Avg seller age**
- **116 days**
## **Competition**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**33 **—flat
**Sellers**
**137**
**Top-5 brand share**
**47%**
Top 20: 89%
**Top-5 click share**
**39%**
Top 20: 82%
**Open market**
**48%**
- The Ordinary16% - TruSkin Naturals10% - CeraVe8% - Naturium7% - TruSkin6% - EQQUALBERRY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.2% search growth over the last 90 days.
350K250KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/vitamin-c-serum/trend)
## **Product shelf**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$484K6%$967K9%$1.5M12%$1.9M1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 40 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**TruSkin Vitamin C Serum for Face - Anti Aging Face Serum with Hyaluronic Acid & Vitamin E - Brightening Formula for Improving Appearance of Dark Spots Fine Lines & Wrinkles - All Skin Types 1 fl oz**TruSkin Naturals**$19.76**4.4★155,905 rev](https://www.amazon.com/dp/B01M4MCUAF) [2**The Ordinary Ascorbyl Glucoside Solution 12% Vitamin C Serum for Even Skin Tone and Antioxidant Protection 1 Fl Oz**The Ordinary**$14.12**4.7★2,409 rev](https://www.amazon.com/dp/B074NNVLCM) [3**CeraVe Vitamin C Serum for Face with 10% Pure Vitamin C Hyaluronic Acid & 3 Essential Ceramides Skin Brightening Antioxidant Serum Hydrates & Improves Skin Tone & Texture Fragrance-Free 1oz**CeraVe**$21.57**4.5★43,850 rev](https://www.amazon.com/dp/B07PNCCLD2) [4**Naturium Vitamin C Complex Face Serum Plus Hyaluronic Acid & Vitamin E Anti Aging Skin Care Treatment 1 oz**Naturium**$19.17**4.6★8,111 rev](https://www.amazon.com/dp/B07Y469VXX) [5**The Ordinary Multi-Antioxidant Radiance Serum Vitamin C Serum For Face Brighten & Protect Skin Boosts Glow & Shields Against Environmental Stressors 1 Fl Oz**The Ordinary**$13.67**4.5★1,032 rev](https://www.amazon.com/dp/B0F2G7ZYLP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GOODAL Vitamin C Brightening Serum ALPHA | 5% Niacinamide & Exosome for Dark Spot Care | Gentle Daily Facial Serum for Radiant Glow Skin | Green Tangerine | Korean Skincare | 1.01 fl oz (30ml)**GOODAL**$18.53**5,209 rev6mo ago](https://www.amazon.com/dp/B0GGGCV238) [**Arencia Vitamin C Booster Shot Serum with Glutathione Niacinamide and Vitamin E for Dark Spot Care Fine Lines & Wrinkles Glass Skin Korean Skincare 30ml/1.01 fl.oz**ARENCIA**$21.58**1,946 rev8mo ago](https://www.amazon.com/dp/B0FX418XT8) [**COSRX Advanced Pure Vitamin C 23% Serum with Vitamin E & Glutathione Korean Vitamin C Serum for Fine Lines Uneven Skin Tone & Dull Skin 0.7oz Korean Skin Care**COSRX**$21.30**621 rev9mo ago](https://www.amazon.com/dp/B0FWQGLTQV) [**medicube Deep Vitamin C Capsule Serum 1.01 fl.oz**medicube**$17.73**696 rev10mo ago](https://www.amazon.com/dp/B0FR4QYNK5) [**The Ordinary Multi-Antioxidant Radiance Serum Vitamin C Serum For Face Brighten & Protect Skin Boosts Glow & Shields Against Environmental Stressors 1 Fl Oz**The Ordinary**$13.67**1,032 rev1y ago](https://www.amazon.com/dp/B0F2G7ZYLP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Arencia Vitamin C Booster Shot Serum with Glutathione Niacinamide and Vitamin E for Dark Spot Care Fine Lines & Wrinkles Glass Skin Korean Skincare 30ml/1.01 fl.oz**ARENCIA**$21.58**4.4★**▲ 193%**](https://www.amazon.com/dp/B0FX418XT8) [**GOODAL Vitamin C Brightening Serum ALPHA | 5% Niacinamide & Exosome for Dark Spot Care | Gentle Daily Facial Serum for Radiant Glow Skin | Green Tangerine | Korean Skincare | 1.01 fl oz (30ml)**GOODAL**$18.53**4.5★**▲ 133%**](https://www.amazon.com/dp/B0GGGCV238) [**medicube Deep Vitamin C Capsule Serum 1.01 fl.oz**medicube**$17.73**4.7★**▲ 98%**](https://www.amazon.com/dp/B0FR4QYNK5) [**COSRX Advanced Pure Vitamin C 23% Serum with Vitamin E & Glutathione Korean Vitamin C Serum for Fine Lines Uneven Skin Tone & Dull Skin 0.7oz Korean Skin Care**COSRX**$21.30**4.4★**▲ 85%**](https://www.amazon.com/dp/B0FWQGLTQV) [**Timeless Skin Care Vitamin C Serum with Vitamin E & Ferulic Acid - Brightening Serum - for Oily & Dry Skin - Fragrance-Free - 1.7 oz**Timeless Skin Care**$31.81**4.3★**▲ 84%**](https://www.amazon.com/dp/B07NJ2ZNL1)
**~~View all trending →~~**
## **Reviews**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Suitability Combination Skin**16%
*“Great for my skin”*
**Quality-Overall**15%
*“Excellent Product”*
**Soft Feel**9%
*“Leaves skin soft”*
**Brightness/Shine/Glow**8%
*“Skin glowing”*
**Value For Money**7%
*“Great deal”*
**Moist/Dry**6%
*“Nice hydration”*
**Absorbency**4%
*“Absorbs beautifully”*
**Suitability Dry Skin**4%
*“Great for extra dry skin”*
**Smell**3%
*“Fragrance free”*
**Efficiency**3%
*“works well and be consistent”*
### **What buyers complain about **
**Functionality-Overall**14%
*“No effective”*
**Allergies**9%
*“Skin Reaction”*
**Smell**7%
*“NOT fragrance free”*
**Value For Money**6%
*“overpriced”*
**Symptom Reduction**6%
*“I just havent seeing any improvement on my skin”*
**Skin Health**5%
*“burned my skin”*
**Moist/Dry**3%
*“No hydration”*
**Advertised Vs Actual Product**3%
*“Fake advertising”*
**Adhesion/Stickiness**3%
*“found it way too sticky”*
**Suitability Dry Skin**2%
*“This product is not for dry skin”*
### **Top return reasons **
**Functionality-Overall**15%
**Advertised Vs Actual Product**11%
**Value For Money**9%
**Leak-Proof**7%
**Smell**6%
**Product Condition**5%
**Skin Health**4%
**Moist/Dry**4%
**Texture/Consistency-Overall**4%
**Adhesion/Stickiness**3%
## **Common questions**
- **Is vitamin c serum profitable to sell on Amazon United States?**
- The niche generates $16.1M/yr across 40 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -4.2%. Flapen's verdict: Worth a look (71/100).
- **How competitive is the vitamin c serum niche?**
- 33 brands and 137 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 47% of demand.
- **What do buyers complain about in vitamin c serum?**
- Top complaints mined from reviews: Functionality-Overall, Allergies, Smell. The return rate is 0.8%.
- **When does demand for vitamin c serum peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the vitamin c serum niche?**
- Listings span $6.62–$45.68; the average listing price is $19.17 (sweet spot $15–$100). The average incumbent carries 24,474 reviews — the moat a new listing must climb.
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