---
title: "Innisfree Vitamin C Serum — $107K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/beauty-personal-care/innisfree-vitamin-c-serum"
last_updated: "2026-08-11T14:12:57.216Z"
locale: en
meta:
description: "Niche score 51/100 · $107K/yr market · 52K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $107K/yr market · 52K searches/yr. A concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Innisfree Vitamin C Serum — $107K/yr Amazon US Niche (2026) - Flapen"
---
# **innisfree vitamin c serum**
**Worth a look**
Shows a sweet-spot price point ($29.14 avg), but a concentrated shelf (top 5 take 100% of clicks) keeps it on the watch list.
Market size 26Growth 84Conversion 75Competition 0Returns 88Price range 95Avg price 95Brand share 0Review moat 83Quality gap 47
**Avg price**
**Incredible****$29.14**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$25.68–$32.50**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Growth**
**Great****+81.8%**
90-day search growth — must beat 0% to launch
**Review moat**
**Great****333.33**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Great****7.1%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$107K**
$107K/yr · 52K searches
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, innisfree vitamin c serum is a $107K/yr Amazon United States market (52K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 51/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **innisfree vitamin c serum market data**
- **Units sold / yr**
- **4K–5K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **$117K–$146K**
- units × avg price
- **Conversion rate**
- **7.1%**
- **Avg BSR**
- **#221**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **33%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **58 months**
- **Avg seller age**
- **129 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**1 **—flat
**Sellers**
**3**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- innisfree100%
## **Demand & seasonality**
Weekly Amazon search volume, last 99 weeks — +81.8% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/beauty-personal-care/innisfree-vitamin-c-serum/trend)
## **Top innisfree vitamin c serum 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%25%$27K50%$53K75%$80K100%$107K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Innisfree Green Tea Enzyme Vitamin C Serum for Brightening | Sunspots Post-Breakout Marks and Dark Spot Correction | Hydrating Korean Face Serum for Radiant Glow 1.01 Fl Oz**innisfree**$29.24**4.6★654 rev](https://www.amazon.com/dp/B0CTKYBW8X) [2**innisfree Green Tea Enzyme Vitamin C Toner Pads | Brightening Korean Face Pads with Hyaluronic Acid and Niacinamide for Dark Spots Radiance and Even Skin Tone | 60 Pads**innisfree**$25.68**4.6★298 rev](https://www.amazon.com/dp/B0DMXH4XVB) [3**Innisfree Brighten + Protect Set | Korean Skincare Set with Lightweight Broad Spectrum SPF 36 and Brightening Vitamin C Serum for Glow and Dark Spots**innisfree**$32.50**4.2★48 rev](https://www.amazon.com/dp/B0DQVKNJHM)
### **Newest**
by launch date
[**Innisfree Brighten + Protect Set | Korean Skincare Set with Lightweight Broad Spectrum SPF 36 and Brightening Vitamin C Serum for Glow and Dark Spots**innisfree**$32.50**48 rev1y ago](https://www.amazon.com/dp/B0DQVKNJHM) [**innisfree Green Tea Enzyme Vitamin C Toner Pads | Brightening Korean Face Pads with Hyaluronic Acid and Niacinamide for Dark Spots Radiance and Even Skin Tone | 60 Pads**innisfree**$25.68**298 rev1y ago](https://www.amazon.com/dp/B0DMXH4XVB) [**Innisfree Green Tea Enzyme Vitamin C Serum for Brightening | Sunspots Post-Breakout Marks and Dark Spot Correction | Hydrating Korean Face Serum for Radiant Glow 1.01 Fl Oz**innisfree**$29.24**654 rev2y ago](https://www.amazon.com/dp/B0CTKYBW8X)
### **Trending**
90-day click momentum
[**Innisfree Green Tea Enzyme Vitamin C Serum for Brightening | Sunspots Post-Breakout Marks and Dark Spot Correction | Hydrating Korean Face Serum for Radiant Glow 1.01 Fl Oz**innisfree**$29.24**4.6★**— 9%**](https://www.amazon.com/dp/B0CTKYBW8X) [**innisfree Green Tea Enzyme Vitamin C Toner Pads | Brightening Korean Face Pads with Hyaluronic Acid and Niacinamide for Dark Spots Radiance and Even Skin Tone | 60 Pads**innisfree**$25.68**4.6★**▼ 16%**](https://www.amazon.com/dp/B0DMXH4XVB) [**Innisfree Brighten + Protect Set | Korean Skincare Set with Lightweight Broad Spectrum SPF 36 and Brightening Vitamin C Serum for Glow and Dark Spots**innisfree**$32.50**4.2★**▼ 56%**](https://www.amazon.com/dp/B0DQVKNJHM)
## **What buyers say about innisfree vitamin c serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Suitability Combination Skin**22%
*“give your skin a brighter glow”*
**Quality-Overall**14%
*“Great product”*
**Symptom Reduction**9%
*“This serum did a good job fading recent spots”*
**Soft Feel**9%
*“Really nice feel”*
**Moist/Dry**9%
*“leave my face feeling hydrated”*
**Value For Money**8%
*“Its a really great product at an affordable price”*
**Smell**4%
*“smells fresh”*
**Suitability Dry Skin**3%
*“They are great toner pads, leave your skin nourished and clean”*
**Weight Light**3%
*“It also provides hydration because of the green tea I believe while still feeling light weight”*
**Durability**3%
*“Last long time”*
### **What buyers complain about **
**Allergies**18%
*“there are a bunch of white pimples all around my mouth”*
**Smell**13%
*“There is no fragrance that I can tell”*
**Moist/Dry**11%
*“Once it dries it really is not hydrating at all”*
**Functionality-Overall**9%
*“slow results”*
**Adhesion/Stickiness**9%
*“It is rather sticky”*
**Size-Overall**9%
*“Smaller that expected”*
**Side Effects**9%
*“Matter of fact, it broke me out some more. which led to me having MORE dark spots & scars”*
**Value For Money**3%
*“It is a little on the pricey side”*
**Suitability Dry Skin**2%
*“In fact, I had to stop using it completely for a week and use really heavy moisturizer until my skin recovered”*
### **Top return reasons **
**Functionality-Overall**23%
**Value For Money**9%
**Product Condition**9%
**Advertised Vs Actual Product**6%
**Moist/Dry**6%
**Size-Overall**6%
**Smell**6%
**Skin Health**5%
**Texture/Consistency-Overall**4%
**Durability**4%
## **Common questions**
- **Is innisfree vitamin c serum profitable to sell on Amazon United States?**
- The niche generates $107K/yr across 3 tracked products. 90-day search growth is +81.8%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the innisfree vitamin c serum niche?**
- 1 brands and 3 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in innisfree vitamin c serum?**
- Top complaints mined from reviews: Allergies, Smell, Moist/Dry. The return rate is 1.4%.
- **When does demand for innisfree vitamin c serum peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the innisfree vitamin c serum niche?**
- Listings span $25.68–$32.50; the average listing price is $29.14 (sweet spot $15–$100). The average incumbent carries 333 reviews — the moat a new listing must climb.
## **Related niches in Beauty & Personal Care**
- 75 [**bio oil lotion**](https://flapen.com/research/us/beauty-personal-care/bio-oil-lotion)$654K/yr+95.9%**Worth a look**- 75 [**glossier futuredew serum**](https://flapen.com/research/us/beauty-personal-care/glossier-futuredew-serum)$344K/yr+383.6%**Worth a look**- 75 [**press on toenails**](https://flapen.com/research/us/beauty-personal-care/press-on-toenails)$2.4M/yr+79.4%**Launch it**- 75 [**skulta deep peptide eye mask**](https://flapen.com/research/us/beauty-personal-care/skulta-deep-peptide-eye-mask)$58K/yr>1,000%**Worth a look**- 75 [**mineral sunscreen spray**](https://flapen.com/research/us/beauty-personal-care/mineral-sunscreen-spray)$3.8M/yr+183.8%**Launch it**- 76 [**collagen oil**](https://flapen.com/research/us/beauty-personal-care/collagen-oil)$344K/yr+116.2%**Worth a look**[**All Beauty & Personal Care niches **](https://flapen.com/research/us/beauty-personal-care)