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Vitamin C Niacinamide Serum

brand-locked demand (top 5 brands take 100% of clicks) — Vitamin C Niacinamide Serum doesn't clear our bar today.

Flapen Score

42
Skip it

Ranks 7,858 of 10,978 Beauty & Personal Care niches · −6 vs the category median of 48

Market size 43Growth 25Conversion 81Competition 9Returns 99Price range 54Avg price 78Brand share 0Review moat 13Quality gap 53
This niche Category average · 10,978 niches

Is Vitamin C Niacinamide Serum profitable on Amazon?

According to Flapen's Amazon United States niche tracking, Vitamin C Niacinamide Serum is a $228K/yr Amazon United States market (167K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Dec. Verdict: Skip it — 42/100.

Vitamin C Niacinamide Serum: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Not really. Search demand moved -0.2% over the last 90 days and 8.5% of searches end in a purchase.

$228K

revenue / yr

Units sold / yr20K
Search volume / yr-0.2%167K
Conversion rate8.5%
Avg price$16.09

Who owns the niche?

The top 5 brands hold 100% of demand, so 0% of the market is open.

0%

open market share

Brands · sellers5 · 41
Top-5 product click share89%
Open market0%
Avg brand age51 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.

0/100

page quality · 8 products

Sponsored placement88%
New entrants (1y)0· 0 succeeded
Avg rating4.4★
Avg reviews25,343

Top Vitamin C Niacinamide Serum products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.

$0$46K$91K$137K$182K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

41

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

89%

Top 20: 100%

Open market

0%

  • Cetaphil65%
  • Eva Naturals16%
  • The Ordinary8%
  • MEDIHEAL7%
  • TruSkin4%

Vitamin C Niacinamide Serum demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume167KCVR8.5%Products8Brands5Top 5 Brands100%OOS Rate0.0%Rating4.4★Reviews25,343Avg BSR#182
18K13KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Dec · busiest ÷ quietest = 4.3×

Top Vitamin C Niacinamide Serum search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • cetaphil vitamin c serum47K/yr
  • eva naturals22K/yr
  • vitamin c niacinamide serum14K/yr
  • cetaphil vitamin c serum for face12K/yr
  • vitamin c and niacinamide serum9K/yr
  • cetaphil vitamin c8K/yr
  • niacinamide and vitamin c serum8K/yr
  • mediheal vitamin c7K/yr
  • eva naturals vitamin c serum9K/yr
  • niacinamide vitamin c6K/yr

What reviews say buyers love and hate about Vitamin C Niacinamide Serum

What buyers mention most, as a share of all reviews.

What buyers love

73% of reviews
Suitability Combination Skin19%

super helpful for textured skin

Quality-Overall15%

Plus, its very affordable for the quality you get

Value For Money10%

reasonable price

Moist/Dry6%

dries fast

Soft Feel6%

Skin feels smooth

What buyers complain about

60% of reviews
Smell13%

Smells like fish

Allergies13%

Irritated my skin

Skin Health9%

it burned my face

Functionality-Overall7%

Non effective

Adhesion/Stickiness4%

it's really sticky

Vitamin C Niacinamide Serum return rate & reasons

Why buyers send it back, as a share of all return requests.

0.1%

Return rate

28%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Smell
20%
2Advertised Vs Actual Product
14%
3Functionality-Overall
11%
4Value For Money
6%
5Skin Health
4%

Common Vitamin C Niacinamide Serum questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Vitamin C Niacinamide Serum 42/100 on Amazon United States — Skip it. The niche generates $228K/yr across 8 tracked products. Search demand moved -0.2% over the last 90 days.
Search demand for Vitamin C Niacinamide Serum on Amazon United States peaks in Jan–Dec, where the busiest month runs 4.3× the quietest.