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vitamin d spray

Skip it

A small market ($36K/yr) — this niche doesn't clear our bar today.

Market size 9Growth 20Conversion 70Competition 22Returns 100Price range 86Avg price 91Brand share 26Review moat 27Quality gap 42

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Great$21.58

avg listing price — sweet spot $15–$100

Price range

Great$12.01–$37.60

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Good6.4%

search→purchase rate — share of searches ending in a sale

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay3,793.77

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay90%

top-5 brand share — brands hold most of the demand

Competition

Bad73%

top-5 click share — a locked-up shelf

Growth

Bad-9.6%

90-day search growth — must beat 0% to launch

Market size

Bad$36K

$36K/yr · 26K searches

According to Flapen's Amazon United States niche tracking, vitamin d spray is a $36K/yr Amazon United States market (26K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 42/100.

Data updated Aug 5, 2026 · scored weekly · How we score niches

vitamin d spray market data

Units sold / yr
2K–3K
avg 100–250/product
Revenue / yr
$43K–$54K
units × avg price
Conversion rate
6.4%
Avg BSR
#785
Page quality
0%
Prime
100%
Sponsored
62%
Out of stock
3.9%
Avg brand age
85 months
Avg seller age
152 days

Competition & brand share

The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 flat

Sellers

56

Top-5 brand share

90%

Top 20: 100%

Top-5 click share

73%

Top 20: 100%

Open market

7%

  • Garden of Life30%
  • MARYRUTH'S30%
  • BetterYou21%
  • Dr. Mercola6%
  • Ideal Infusion4%
  • Terra Health Essentials3%
  • Open — no brand owns it (3 brands, 7%)

Demand

Weekly Amazon search volume, last 28 weeks — -9.6% search growth over the last 90 days.
600400Spike '26Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26

Top vitamin d spray search terms

  • vitamin d spray13K/yr
  • vitamin d3 spray7K/yr
  • vitamin d3 k2 spray4K/yr
  • vitamin d spray for adults2K/yr
All search terms

Top vitamin d spray 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%10%$4K20%$7K30%$11K40%$14K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about vitamin d spray

What buyers praise and complain about, mined from review topics.

What buyers love

Vitamin22%

“Excellent Vitamin”

Quality-Overall14%

“Great product from MaryRuth”

Taste-Overall9%

“It doesnt alter the taste”

Ease Of Use9%

“Easy to Use”

Value For Money6%

“Worth it”

Dosage4%

“Easy to measure the dosage”

Energy Level4%

“boost their energy”

Advertised Vs Actual Product2%

“As described”

Vegan/Organic2%

“so went this organic plant product that I tolerate extremely well”

Absorbency2%

“have a 98% absorbtion rate”

What buyers complain about

Taste-Overall38%

“Weird taste”

Vitamin8%

“I have had a serious vitamin D deficiency for years”

Dosage6%

“I don't like dosing it with a spray bottle”

Flavor2%

“Straigh up fish skin flavor”

Absorbency2%

“Tried others and it just dont absorb the same”

Leak-Proof2%

“the bottles were open and leaking”

Quality-Overall2%

“Cap external not good”

Smell2%

“it doesnt really smell like anything/taste like anything”

Durability2%

“it broke after the 2nd use”

Advertised Vs Actual Product2%

“False Advertising”

Top return reasons

Leak-Proof25%
Dosage17%
Flavor17%
Ingredients-Overall8%
Value For Money8%
Vegan/Organic8%
Acid Regulator/Stomach Ache Relief4%
Burnt/Roasted/Overbaked4%
Side Effects4%
Taste-Overall4%

Common questions

Is vitamin d spray profitable to sell on Amazon United States?
The niche generates $36K/yr across 13 tracked products. 90-day search growth is -9.6%. Flapen's verdict: Skip it (42/100).
How competitive is the vitamin d spray niche?
9 brands and 56 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 90% of demand.
What do buyers complain about in vitamin d spray?
Top complaints mined from reviews: Taste-Overall, Vitamin, Dosage. The return rate is 0.0%.
What does it cost to enter the vitamin d spray niche?
Listings span $12.01–$37.60; the average listing price is $21.58 (sweet spot $15–$100). The average incumbent carries 3,794 reviews — the moat a new listing must climb.