---
title: "Vitamin C Serum — $7K/yr Amazon SG Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/sg/beauty/vitamin-c-serum"
last_updated: "2026-08-06T15:45:13.492Z"
locale: en
meta:
description: "Niche score 51/100 · $7K/yr market · 10K searches/yr · $36.66 avg price. A small market ($7K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $7K/yr market · 10K searches/yr · $36.66 avg price. A small market ($7K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Vitamin C Serum — $7K/yr Amazon SG Niche (2026) - Flapen"
---
# **vitamin c serum**
**Worth a look**
Shows low returns (0.1%), but a small market ($7K/yr) keeps it on the watch list.
Market size 2Growth 26Conversion 22Competition 57Returns 100Price range 90Avg price 95Brand share 80Review moat 18Quality gap 75
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$36.66**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.93–$84.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****55%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****51%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+1.1%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Bad****16,292.88**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$7K**
$7K/yr · 10K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=sg&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon Singapore niche tracking, vitamin c serum is a $7K/yr Amazon Singapore market (10K searches/yr). The top 5 brands hold 55% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin c serum market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$9K–$18K**
- units × avg price
- **Conversion rate**
- **1.8%**
- **Avg BSR**
- **#98**
- **Page quality**
- **0%**
- **Prime**
- **65%**
- **Sponsored**
- **18%**
- **Out of stock**
- **4.6%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **47 days**
## **Competition & brand share**
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▼falling
**Sellers**
**21**
**Top-5 brand share**
**55%**
Top 20: 100%
**Top-5 click share**
**51%**
Top 20: 100%
**Open market**
**37%**
- Cetaphil17% - Naturium11% - Timeless Skin Care10% - Minimalist9% - RoC8% - COSRX8%
## **Demand**
Weekly Amazon search volume, last 47 weeks — +1.1% search growth over the last 90 days.
400300Spike '25Black Friday '25Spike '26Aug '25Oct '25Dec '25Jan '26Mar '26May '26Jun '26
[**Open Trend **](https://flapen.com/research/sg/beauty/vitamin-c-serum/trend)
## **Top vitamin c serum search terms**
- **vitamin c serum**8K/yr+1.3%2.3% conv. - **vitamin c serum for face**2K/yr-3.0%3.1% conv. - **vit c serum**459/yr+13.6%2.0% conv. [**All search terms **](https://flapen.com/research/sg/beauty/vitamin-c-serum/search-terms)
## **Top 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%5%$32910%$65715%$98620%$1K1001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Cetaphil Vitamin C Serum Visibly Reduces Look of Dark Spots and Hyperpigmentation Formulated with Niacinamide Designed for Sensitive Skin Fragrance Free Dermatologist Tested 1oz**Cetaphil**$24.49**4.5★1,049 rev](https://www.amazon.sg/dp/B0CZDNLBK6) [2**Vitamin C Complex Face Serum - 1 oz Facial Serum with 22% Vitamin C Complex Plus Hyaluronic Acid & Vitamin E**Naturium**$30.12**4.6★7,440 rev](https://www.amazon.sg/dp/B07Y469VXX) [3**RoC Multi Correxion Revive + Glow 10% Active Vitamin C Serum for Face Daily Anti-Aging Wrinkle and Skin Tone Skin Care Treatment Brightening Serum Stocking Stuffers for Men & Women 1 oz**RoC**$32.75**4.3★18,522 rev](https://www.amazon.sg/dp/B088C7S4VL) [4**Cosrx The Vitamin C 23 Face Serum 20g**COSRX**$27.36**4.1★7,708 rev](https://www.amazon.sg/dp/B09ZY8T55Y) [5**Timeless Vitamin C Plus E 20 Percent Ferulic Acid Serum for Unisex 1 oz Serum**Timeless Skin Care**$41.37**4.3★9,603 rev](https://www.amazon.sg/dp/B0036BI56G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DR. Althea Vitamin C Boosting Serum 30ml**Dr.Althea**$18.42**815 rev11mo ago](https://www.amazon.sg/dp/B0C1MZ3RPH) [**LA ROCHE-POSAY Pure Vitamin C12 Anti-Wrinkle Concentrate Serum 30ml**La Roche-Posay**$75.98**766 rev1y ago](https://www.amazon.sg/dp/B0DHS9NX45) [**Chemist At Play 10% Vitamin C Face Serum |Brightens & Gives Glow |Fades Dark Spots |Treats Hyperpigmentation| Balances Melanin Production | Ethyl Ascorbic Acid & Glucosamine | For All Skin Types 30ml**Chemist at Play**$9.93**1,070 rev1y ago](https://www.amazon.sg/dp/B0DFCSKL8K) [**Paulas Choice 25% Vitamin C Serum with Glutathione & Antioxidants - Improves Discoloration Uneven Tone & Firms**PAULA'S CHOICE**$84.58**381 rev2y ago](https://www.amazon.sg/dp/B0CG2KD336) [**Minimalist 10% Vitamin C Face Serum for Glowing Skin (Formulated & Tested For Sensitive Skin) | Non Irritating | Non Sticky | Brightening Vit C Formula For Men and Women | 10 ml**Minimalist**$15.63**3,535 rev2y ago](https://www.amazon.sg/dp/B0CW1M1BC1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Chemist At Play 10% Vitamin C Face Serum |Brightens & Gives Glow |Fades Dark Spots |Treats Hyperpigmentation| Balances Melanin Production | Ethyl Ascorbic Acid & Glucosamine | For All Skin Types 30ml**Chemist at Play**$9.93**4.0★**▲ 354%**](https://www.amazon.sg/dp/B0DFCSKL8K) [**DR. Althea Vitamin C Boosting Serum 30ml**Dr.Althea**$18.42**4.4★**▲ 143%**](https://www.amazon.sg/dp/B0C1MZ3RPH) [**LA ROCHE-POSAY Pure Vitamin C12 Anti-Wrinkle Concentrate Serum 30ml**La Roche-Posay**$75.98**4.4★**▲ 138%**](https://www.amazon.sg/dp/B0DHS9NX45) [**PURA DOR 20% Vitamin C Serum Premium Professional Grade (4oz / 118mL) for Face & Eyes Most Complete Formula Hyaluronic Acid Vitamin E & Argan Oil Treatment for Dark Spots Acne Wrinkles Men-Women**PURA D'OR**$34.89**4.4★**▲ 122%**](https://www.amazon.sg/dp/B00KMCEA4S) [**Cetaphil Vitamin C Serum Visibly Reduces Look of Dark Spots and Hyperpigmentation Formulated with Niacinamide Designed for Sensitive Skin Fragrance Free Dermatologist Tested 1oz**Cetaphil**$24.49**4.5★**▲ 42%**](https://www.amazon.sg/dp/B0CZDNLBK6)
**~~View all trending →~~**
## **What buyers say about vitamin c serum**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**50%
*“Great product”*
**Texture/Consistency-Overall**13%
*“This serum has a nice texture”*
**Absorbency**13%
*“gets absorbed quickly”*
**Moist/Dry**13%
*“Good hydration”*
### **What buyers complain about **
**Side Effects**25%
*“No effects”*
**Value For Money**25%
*“Waste of money”*
**Functionality-Overall**13%
*“It doesn't work for my dark spots”*
### **Top return reasons **
**Functionality-Overall**50%
**Leak-Proof**50%
## **Common questions**
- **Is vitamin c serum profitable to sell on Amazon Singapore?**
- The niche generates $7K/yr across 17 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +1.1%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the vitamin c serum niche?**
- 14 brands and 21 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 55% of demand.
- **What do buyers complain about in vitamin c serum?**
- Top complaints mined from reviews: Side Effects, Value For Money, Functionality-Overall. The return rate is 0.1%.
- **What does it cost to enter the vitamin c serum niche?**
- Listings span $9.93–$84.58; the average listing price is $36.66 (sweet spot $15–$100). The average incumbent carries 16,293 reviews — the moat a new listing must climb.
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