---
title: "D Hist — $667K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/d-hist"
last_updated: "2026-08-11T12:13:32.134Z"
locale: en
meta:
description: "Niche score 44/100 · $667K/yr market · 353K searches/yr · $64.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $667K/yr market · 353K searches/yr · $64.38 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "D Hist — $667K/yr Amazon US Niche (2026) - Flapen"
---
# **d hist**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 67Growth 24Conversion 37Competition 14Returns 100Price range 74Avg price 88Brand share 0Review moat 61Quality gap 38
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$64.38**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$23.23–$127.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$667K**
$667K/yr · 353K searches
**Review moat**
**Good****1,048.67**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-2.3%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, d hist is a $667K/yr Amazon United States market (353K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 44/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **d hist market data**
- **Units sold / yr**
- **10K–13K**
- avg 500–750/product
- **Revenue / yr**
- **$644K–$805K**
- units × avg price
- **Conversion rate**
- **2.9%**
- **Avg BSR**
- **#407**
- **Page quality**
- **0%**
- **Prime**
- **44%**
- **Sponsored**
- **56%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **88 months**
- **Avg seller age**
- **148 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**25**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Ortho Molecular Products70% - Pure Encapsulations10% - Histamine Shield Plus9% - ForestLeaf7% - Granions4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -2.3% search growth over the last 90 days.
13K8KSpike '24Black Friday '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May · busiest ÷ quietest = 3.8×
[**Open Trend **](https://flapen.com/research/us/health-household/d-hist/trend)
## **Top d hist search terms**
- **ortho molecular products**162K/yr-8.3%0.6% conv. - **d hist**40K/yr+19.4%4.1% conv. - **d-hist**26K/yr-4.3%4.5% conv. - **dhist**21K/yr+34.2%2.0% conv. - **dhist allergy supplement**14K/yr+17.0%4.1% conv. - **ortho molecular**19K/yr+6.2%0.3% conv. - **d hist allergy supplement**17K/yr-28.8%3.9% conv. - **orthomolecular supplements**13K/yr-13.4%0.4% conv. - **d-hist allergy supplement**4K/yr+122.2%6.0% conv. - **d-hist ortho molecular**6K/yr-24.4%5.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/d-hist/search-terms)
## **Top d hist 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%15%$100K30%$200K45%$300K60%$400K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Ortho Molecular Natural D-Hist - 120 Capsules**Ortho Molecular Products**$85.80**4.8★65 rev](https://www.amazon.com/dp/B0FZDK2LWK) [2**Pure Encapsulations Hist Reset | Support for Nasal and Respiratory Health* | 120 Capsules**Pure Encapsulations**$59.29**4.7★92 rev](https://www.amazon.com/dp/B0BKC9N2PB) [3**Histamine Shield Plus Natural Antihistamine Supplement for Adults Sinus & Allergy Relief for Pollen Pet Dander Dust Mold and Odors Quercetin with Bromelain & Stinging Nettle 120 Capsules**Histamine Shield Plus**$41.64**4.3★460 rev](https://www.amazon.com/dp/B07CHBKT97) [4**ForestLeaf Quercetin with Bromelain 1350mg - Blend with Vitamin C & Stinging Nettle Supplement Quercetin 500mg Capsules Non-GMO Gluten Free Natural Function 90 Veggie Caps**ForestLeaf**$23.23**4.7★8,558 rev](https://www.amazon.com/dp/B07RN1BMLQ) [5**Ortho Molecular Reacted Magnesium - 60 Capsules**Ortho Molecular Products**$54.25**4.7★33 rev](https://www.amazon.com/dp/B0G35JHWF6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ortho Molecular Reacted Magnesium - 60 Capsules**Ortho Molecular Products**$54.25**33 rev7mo ago](https://www.amazon.com/dp/B0G35JHWF6) [**Ortho Molecular Vitamin K2 with D3-60 Capsules**Ortho Molecular Products**$69.15**14 rev8mo ago](https://www.amazon.com/dp/B0FZCN6HNJ) [**Ortho Biotic Capsules - 60 Capsules**Ortho Molecular Products**$92.75**21 rev8mo ago](https://www.amazon.com/dp/B0FZCHMK2G) [**Ortho Molecular Natural D-Hist - 120 Capsules**Ortho Molecular Products**$85.80**65 rev8mo ago](https://www.amazon.com/dp/B0FZDK2LWK) [**Granions Histamine Blocker Complex - 1 000mg Quercetin with Bromelain NAC and Vitamin C - D-Hist Seasonal Histamine Balance & Immune Support Supplement for Adults and Children - 60 Vegan Capsules**Granions**$26.13**162 rev1y ago](https://www.amazon.com/dp/B0BZPRBVYK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SEVNODI Ortho Molecular - Orthomega 820-180 Soft Gel Capsules**Ortho Molecular Products**$127.16**4.6★**▲ 52%**](https://www.amazon.com/dp/B003PQYESA) [**Ortho Molecular Natural D-Hist - 120 Capsules**Ortho Molecular Products**$85.80**4.8★**▲ 13%**](https://www.amazon.com/dp/B0FZDK2LWK) [**Ortho Molecular Reacted Magnesium - 60 Capsules**Ortho Molecular Products**$54.25**4.7★**— 5%**](https://www.amazon.com/dp/B0G35JHWF6) [**Ortho Molecular Vitamin K2 with D3-60 Capsules**Ortho Molecular Products**$69.15**4.7★**— 2%**](https://www.amazon.com/dp/B0FZCN6HNJ) [**ForestLeaf Quercetin with Bromelain 1350mg - Blend with Vitamin C & Stinging Nettle Supplement Quercetin 500mg Capsules Non-GMO Gluten Free Natural Function 90 Veggie Caps**ForestLeaf**$23.23**4.7★**▼ 12%**](https://www.amazon.com/dp/B07RN1BMLQ)
**~~View all trending →~~**
## **What buyers say about d hist**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Allergies**25%
*“Allergy Relief”*
**Quality-Overall**17%
*“Great produc”*
**Vitamin**7%
*“Great supplement”*
**Side Effects**5%
*“No side effects”*
**Efficiency**4%
*“Effective”*
**Value For Money**4%
*“Good value for the money”*
**Ingredients-Overall**3%
*“Affordable Quality Quercetin”*
**Fever Relief**3%
*“Love them for eating out with histamine issues”*
**Sinus Relief**3%
*“This is very effective for sinus issues”*
**Dosage**2%
*“Good value easy dosage”*
### **What buyers complain about **
**Allergies**30%
*“I had a terrible reaction”*
**Value For Money**13%
*“Not worth the price point”*
**Functionality-Overall**6%
*“Did not work”*
**Side Effects**5%
*“gave me asthma attacks bad”*
**Sleep Quality**3%
*“I have a hard time falling asleep”*
**Magnesium**3%
*“magnesium srearate not needed in the body”*
**Visibility**3%
*“Cant really see the benefits of this yet”*
**Comfort-Overall**3%
*“Received and there was no safety seal or seal around the top; therefore, I do not feel comfortable taking this product”*
**Sinus Relief**3%
*“when I start to feel a cold or sinus issues”*
**Size-Overall**3%
*“Capsules are too large”*
### **Top return reasons **
**Functionality-Overall**50%
**Magnesium**50%
## **Common questions**
- **Is d hist profitable to sell on Amazon United States?**
- The niche generates $667K/yr across 9 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -2.3%. Flapen's verdict: Skip it (44/100).
- **How competitive is the d hist niche?**
- 5 brands and 25 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in d hist?**
- Top complaints mined from reviews: Allergies, Value For Money, Functionality-Overall. The return rate is 0.0%.
- **When does demand for d hist peak?**
- Demand peaks in Mar–Apr–May; the busiest month runs 3.8× the quietest.
- **What does it cost to enter the d hist niche?**
- Listings span $23.23–$127.16; the average listing price is $64.38 (sweet spot $15–$100). The average incumbent carries 1,049 reviews — the moat a new listing must climb.
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