d3 125 mcg
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible18.1%search→purchase rate — share of searches ending in a sale
Market size
Good$446K$446K/yr · 200K searches
Avg price
Good$12.34avg listing price — sweet spot $15–$100
Price range
Okay$7.59–$21.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+2.4%90-day search growth — must beat 0% to launch
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Competition
Bad88%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Review moat
Bad71,257.56avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, d3 125 mcg is a $446K/yr Amazon United States market (200K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 41/100.
Data updated Aug 5, 2026 · scored weekly · How we score niches
d3 125 mcg market data
- Units sold / yr
- 40K–50K
- avg 3,000–4,000/product
- Revenue / yr
- $494K–$617K
- units × avg price
- Conversion rate
- 18.1%
- Avg BSR
- #88
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 78%
- Out of stock
- 0.0%
- Avg brand age
- 96 months
- Avg seller age
- 142 days
Competition & brand share
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 rising
Sellers
117
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
88%
Top 20: 100%
Open market
0%
- Nature's Bounty90%
- NatureWise4%
- Bronson3%
- Nature Made3%
- Open — no brand owns it (0%)
Demand
Weekly Amazon search volume, last 18 weeks — +2.4% search growth over the last 90 days.Top d3 125 mcg search terms
- natures bounty d361K/yr
- vitamin d3 125 mcg13K/yr
- d3 125 mcg9K/yr
- nature bounty d313K/yr
- natures bounty d3 5000 iu11K/yr
- natures bounty vitamin d315K/yr
- natures bounty vitamin d12K/yr
- nature bounty vitamin d6K/yr
- d3 natures bounty8K/yr
- vitamin d3 natures bounty8K/yr
Top d3 125 mcg 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.
All 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Natures Bounty Vitamin D3 5000 IU Softgels 240 Count
Nature's Bounty$14.744.8★83,838 rev
Natures Bounty Vitamin D3 2000 IU
Nature's Bounty$10.854.8★76,335 rev
Natures Bounty Vitamin D3 1000 IU Softgels 350 Count
Nature's Bounty$11.734.7★49,860 rev
Natures Bounty Vitamin D3 5000 IU Softgels Rapid Release 150 Count
Nature's Bounty$8.214.8★83,838 rev
NatureWise Vitamin D3 5000IU Supplement Immune Support 360 Mini Softgels
NatureWise$13.604.7★195,696 rev
Newest
by launch date
Bronson Vitamin D3 5000iu (125mcg) Non-GMO Gluten-Free Soy-Free 360 Tablets
Bronson$9.542,941 rev
Natures Bounty Immune Health Vitamin D3 5000 iu Rapid Release 400 Softgels
Nature's Bounty$21.454,837 rev
NatureWise Vitamin D3 5000IU Supplement Immune Support 360 Mini Softgels
NatureWise$13.60195,696 rev
Natures Bounty Vitamin D3 2000 IU
Nature's Bounty$10.8576,335 rev
Natures Bounty Vitamin D3 5000 IU Softgels 240 Count
Nature's Bounty$14.7483,838 rev
Trending
90-day click momentumNatures Bounty Vitamin D3 5000 IU Softgels 240 Count
Nature's Bounty$14.744.8★
Nature Made Vitamin D3 5000 IU (125 mcg) 180 Vitamin D Softgels
Nature Made$13.364.8★
Bronson Vitamin D3 5000iu (125mcg) Non-GMO Gluten-Free Soy-Free 360 Tablets
Bronson$9.544.8★
Natures Bounty Vitamin D Supports Immune Health & Bone Health 150 Count
Nature's Bounty$7.594.8★
Natures Bounty Vitamin D3 2000 IU
Nature's Bounty$10.854.8★
What buyers say about d3 125 mcg
What buyers praise and complain about, mined from review topics.What buyers love
“Great Vitamin D3”
“the quality has been consistent with every purchase”
“Fair price”
“As advertised”
“Ease swallow”
“Effective”
“My Dr approves of this dosage and its effectiveness”
“Good Supplement”
“Convenient”
“Immune system support”
What buyers complain about
“These are small”
“I was deficient in vitamin d”
“Too high of a dose for me”
“Doesnt work”
“the pills were all clumped together”
“upon using them for a few days I got sick on my stomach”
“something doesnt smell right”
“Has no taste, and is small and easy to digest”
“Changing the ingredients to allergy prone foods is a BAD idea”
“So, I took one of these small pills and within 15 minutes I felt extremely light headed and also had stomach pain”
Top return reasons
Common questions
- Is d3 125 mcg profitable to sell on Amazon United States?
- The niche generates $446K/yr across 9 tracked products. 90-day search growth is +2.4%. Flapen's verdict: Skip it (41/100).
- How competitive is the d3 125 mcg niche?
- 4 brands and 117 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in d3 125 mcg?
- Top complaints mined from reviews: Size-Overall, Vitamin, Dosage. The return rate is 0.0%.
- What does it cost to enter the d3 125 mcg niche?
- Listings span $7.59–$21.45; the average listing price is $12.34 (sweet spot $15–$100). The average incumbent carries 71,258 reviews — the moat a new listing must climb.