---
title: "d hist — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/d-hist"
last_updated: "2026-07-14T05:08:05.853Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — d hist doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — d hist doesn't clear our bar today."
  "og:title": "d hist — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen"
---

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# **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 6% 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

## **Competition**

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%**

**Open market**

**0%**

- Ortho Molecular Products70% - Pure Encapsulations10% - Histamine Shield Plus9% - ForestLeaf7% - Granions4% - Open — no brand owns it (0%)

## **Product shelf**

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](https://m.media-amazon.com/images/I/41hLS3sqngL.jpg)**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](https://m.media-amazon.com/images/I/31eCVnruOHL.jpg)**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](https://m.media-amazon.com/images/I/413CPSMmAcL.jpg)**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](https://m.media-amazon.com/images/I/51p4DMrraCL.jpg)**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](https://m.media-amazon.com/images/I/41All5txCyL.jpg)**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](https://m.media-amazon.com/images/I/41All5txCyL.jpg)**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](https://m.media-amazon.com/images/I/312tYZVu2tL.jpg)**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](https://m.media-amazon.com/images/I/31imnb+tKLL.jpg)**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](https://m.media-amazon.com/images/I/41hLS3sqngL.jpg)**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](https://m.media-amazon.com/images/I/41+ERZ1WuWL.jpg)**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](https://m.media-amazon.com/images/I/51pNzfOgduL.jpg)**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](https://m.media-amazon.com/images/I/41hLS3sqngL.jpg)**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](https://m.media-amazon.com/images/I/41All5txCyL.jpg)**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](https://m.media-amazon.com/images/I/312tYZVu2tL.jpg)**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](https://m.media-amazon.com/images/I/51p4DMrraCL.jpg)**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 →~~**

## **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×

## **Reviews**

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%