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Vitamin D Test

Maybe

An estimated 0.3% of orders come back. But demand is soft, at -28.5% this quarter, so Vitamin D Test is a Maybe.

Flapen Score
52
52 / 100
Top 36% of 14,768 Health & Household niches · +3 vs the category median of 49
Market size
$95K/yr57K searches / yr
90-day growth
-28.5%search demand this quarter
Competition
66%top-5 click share · 10 brands · 10 sellers

Flapen Score

Vitamin D Test against its category

The dotted line is the Health & Household average. Past it, Vitamin D Test is stronger. Inside it, weaker.

52Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Vitamin D Test market on Amazon at a glance

Shoppers on Amazon United States searched for Vitamin D Test 57K times last year and spent an estimated $95K. The top 5 brands take 81% of clicks. Demand peaks in Feb. Flapen scores it 52 out of 100, a Maybe.

01 · Demand

An estimated 3.6% of those searches ended in a purchase.

Shoppers searched for this 57K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 3.6% of those searches ended in a purchase. Searches in the last 90 days moved -28.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $95K a year.

Searches, last 12 months
57K
Growth, 90 days vs prior 90
-28.5%
Conversion, latest week
3.6%
Market size, estimated
$95Ka year
Peak month
February2.1× the quietest month
Top search term
vitamin d test kit at home19K searches a year

02 · Price

A sale here is worth $46.93.

Listings sell for $46.93 on average, from $16.43 to $117.71. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 100 to 250 of them. At $46.93 that is $5K to $12K a year per listing.

Average price
$46.93inside the $15 to $100 sweet spot
Price range
$16.43–$117.71
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
2K–2K
Units per listing a year
100–250
Revenue per listing a year
$5K–$12K
Returns
0.3%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

75% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 18.1% of listings are out of stock. The average listing ranks #725 within Home Tests. It carries 103 reviews at 3.88 stars, so a new listing needs social proof before a better product.

Sponsored listings
75%
Prime listings
92%
Out of stock, average day
18.1%
Average rank
#725in Home Tests
Average rating
3.88 starsAmazon United States average 4.42 stars
Average reviews
103per listing
Listings tracked
12

04 · Newcomers

0 of last year's 3 launches cleared the first-year sales bar.

3 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 57 months on average, so the names here are settling in.

Launched, last 12 months
3
Successful launches
0Amazon's first-year sales bar
Average brand age
57 months

Products

Top Vitamin D Test products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 66% of clicks. Leaders hold, but buyers still shop past them.

Brands

10 flat

Sellers

10

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

13%

  • Brand 134%
  • Brand 215%
  • Brand 315%
  • Brand 48%
  • Brand 58%
  • Brand 66%
  • Open — no brand owns it (4 brands, 13%)

Demand

Vitamin D Test search demand

Weekly searches over the year, seasonality beneath. Pick a range.

5K4KSpike '24Spike '25SepDecMarJunAugNovMarMay

Peak months: Feb · busiest ÷ quietest = 2.1×

Search terms

Top Vitamin D Test search terms shoppers use

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

  • vitamin d test kit at home19K/yr
  • vitamin d test19K/yr
  • vitamin d test kit8K/yr
  • vitamin d testing kit for home2K/yr
  • at home vitamin d test3K/yr
  • vitamin d test at home3K/yr
  • vitamin d testing kit2K/yr

Reviews and returns

What reviews say buyers love and hate about Vitamin D Test

We read the reviews and the return reasons for every product selling here.

32%of positive reviews mention “Ease Of Use”
13%of negative reviews mention “Instructions/User Manual/Troubleshooting”
0.3%of orders come back
“Instructions are very difficult to understand”
A buyer, on “Instructions/User Manual/Troubleshooting”13% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

18 topics

NegativePositive

FAQ

Common Vitamin D Test questions

Answered from the same tracked data.