Vitamin D Test Kit
prices mostly outside the sweet spot ($4.88–$8.48) — Vitamin D Test Kit doesn't clear our bar today.
Flapen Score
Is Vitamin D Test Kit profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Vitamin D Test Kit is a £21K/yr Amazon United Kingdom market (39K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 36/100.
Vitamin D Test Kit: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -41.3% over the last 90 days and 8.4% of searches end in a purchase.
£21K
revenue / yr
Who owns the niche?
The top 5 brands hold 97% of demand, so 3% of the market is open.
3%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 3.8★ — the gap to enter on.
0/100
page quality · 7 products
Top Vitamin D Test Kit products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Vitamin D Test Kit - Check for Deficiency & Insufficiency - 1 Vitamin D Testing Kit - Easy Home Testing for Accurate Results
- Price
- £4.91
- Rating
- 4.0/5
- Reviews
- 360
- Age
- 6y ago
Newfoundland Vitamin D Test Kit - UV Deficiency Detection - 99% Accurate Home Test for Vitamin D Levels - Certified by CE - Blood Test Kit for D3 & D2 - Sunlight & UVB Single Person Testing
- Price
- £6.66
- Rating
- 3.8/5
- Reviews
- 225
- Age
- 3y ago
2 x Vitamin D Level Insufficiency Deficiency Testing Kits (2 Tests)
- Price
- £7.51
- Rating
- 3.7/5
- Reviews
- 214
- Age
- 6y ago
KP Pharma Vitamin D Test Kit Check for UV Deficiency & Insufficiency Level at Home Clinically Tested Certified by CE Easy and Quick Test Kit for Accurate Results - 1 Vitamin D Testing Kit
- Price
- £4.88
- Rating
- 3.5/5
- Reviews
- 48
- Age
- 1y ago
Vitamin D Level Insufficiency Deficiency Self Testing Kit Rapid Test Cassette
- Price
- £4.91
- Rating
- 3.9/5
- Reviews
- 49
- Age
- 4y ago
Trending
90-day click momentumVitamin D Test Kit - Check for Deficiency & Insufficiency - 1 Vitamin D Testing Kit - Easy Home Testing for Accurate Results
- Price
- £4.91
- Rating
- 4.0/5
- Reviews
- 360
- Age
- 6y ago
Newfoundland Vitamin D Test Kit - UV Deficiency Detection - 99% Accurate Home Test for Vitamin D Levels - Certified by CE - Blood Test Kit for D3 & D2 - Sunlight & UVB Single Person Testing
- Price
- £6.66
- Rating
- 3.8/5
- Reviews
- 225
- Age
- 3y ago
KP Pharma Vitamin D Test Kit Check for UV Deficiency & Insufficiency Level at Home Clinically Tested Certified by CE Easy and Quick Test Kit for Accurate Results - 1 Vitamin D Testing Kit
- Price
- £4.88
- Rating
- 3.5/5
- Reviews
- 48
- Age
- 1y ago
Berkeley Health Vitamin D Test Kit Easy Home Use Clear Results (1 Test)
- Price
- £8.48
- Rating
- 3.9/5
- Reviews
- 67
- Age
- 2y ago
Vitamin D Level Insufficiency Deficiency Self Testing Kit Rapid Test Cassette
- Price
- £4.91
- Rating
- 3.9/5
- Reviews
- 49
- Age
- 4y ago
Newest
by launch dateKP Pharma Vitamin D Test Kit Check for UV Deficiency & Insufficiency Level at Home Clinically Tested Certified by CE Easy and Quick Test Kit for Accurate Results - 1 Vitamin D Testing Kit
- Price
- £4.88
- Rating
- 3.5/5
- Reviews
- 48
- Age
- 1y ago
Berkeley Health Vitamin D Test Kit Easy Home Use Clear Results (1 Test)
- Price
- £8.48
- Rating
- 3.9/5
- Reviews
- 67
- Age
- 2y ago
Newfoundland Vitamin D Test Kit - UV Deficiency Detection - 99% Accurate Home Test for Vitamin D Levels - Certified by CE - Blood Test Kit for D3 & D2 - Sunlight & UVB Single Person Testing
- Price
- £6.66
- Rating
- 3.8/5
- Reviews
- 225
- Age
- 3y ago
Vitamin D Level Insufficiency Deficiency Self Testing Kit Rapid Test Cassette
- Price
- £4.91
- Rating
- 3.9/5
- Reviews
- 49
- Age
- 4y ago
2 x Vitamin D Level Insufficiency Deficiency Testing Kits (2 Tests)
- Price
- £7.51
- Rating
- 3.7/5
- Reviews
- 214
- Age
- 6y ago
Competition: brands, sellers & click share
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.
Brands
6 falling
Sellers
10
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
93%
Top 20: 100%
Open market
0%
- One Step57%
- Newfoundland28%
- KP Pharma5%
- MediMad4%
- Berkeley Health3%
- ALLTEST3%
- Open — no brand owns it (0%)
Vitamin D Test Kit demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan, Feb, Mar · busiest ÷ quietest = 3.9×
Top Vitamin D Test Kit search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- vitamin d test kit19K/yr
- vitamin d test14K/yr
- vitamin d test kit home uk6K/yr
What reviews say buyers love and hate about Vitamin D Test Kit
What buyers mention most, as a share of all reviews.
What buyers love
64% of reviews“Easy to use”
“Quality is great”
“instructions are clear”
“Value for money as it does work”
What buyers complain about
85% of reviews“as sometimes these may not be accurate”
“suspected I had a vitamin D deficiency since Ive had them previously”
“The test comes with two lancets, and the manual is quite difficult to read and follow”
“It doesn't work”
“A waste of money”
Vitamin D Test Kit return rate & reasons
Why buyers send it back, as a share of all return requests.
0.2%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Vitamin D Test Kit questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
