---
title: "vitamin k1 — Niche Verdict: Worth a look (56/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/pet-supplies/vitamin-k1"
last_updated: "2026-07-17T13:12:55.006Z"
locale: en
meta:
  description: "vitamin k1 shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "vitamin k1 shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "vitamin k1 — Niche Verdict: Worth a look (56/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **vitamin k1**

**Worth a look**

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 30Growth 23Conversion 84Competition 56Returns 100Price range 82Avg price 91Brand share 82Review moat 48Quality gap 23

**Returns**

**Incredible****0.0%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$21.55**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****9.4%**

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

**Brand share**

**Great****53%**

top-5 brand share — no brand owns this niche

**Price range**

**Great****$4.58–$68.73**

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

**Competition**

**Good****52%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Okay****1,691.07**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Okay****$132K**

$132K/yr · 65K searches

**Growth**

**Bad****-3.8%**

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

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

## **Competition**

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**23 **▼falling

**Sellers**

**559**

**Top-5 brand share**

**53%**

**Open market**

**40%**

- BlueBonnet12% - Vet One12% - BioTechUSA11% - Superior Source8% - Puritan's Pride8% - Bronson8%

## **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%4%$5K8%$11K12%$16K16%$21K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 28 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Bluebonnet Vitamin K1 100 mcg Supports Bone Health - Phylloquinone Crystalline Vitamin K Supplement - Non-GMO Kosher Certified Gluten-Free Dairy-Free - 100 Vegan Caplets](https://m.media-amazon.com/images/I/315r16VUrlL.jpg)**Bluebonnet Vitamin K1 100 mcg Supports Bone Health - Phylloquinone Crystalline Vitamin K Supplement - Non-GMO Kosher Certified Gluten-Free Dairy-Free - 100 Vegan Caplets**BlueBonnet**$10.58**4.6★462 rev](https://www.amazon.com/dp/B000I48QBS) [2![Vet One Vitamin K1 Chewable Tablets - Vitamin K1 for Dogs Beef-Flavored Chewable Vitamins for Cats and Dogs (50 Tablets Phytonadione 25mg)](https://m.media-amazon.com/images/I/41XSoHLdtZL.jpg)**Vet One Vitamin K1 Chewable Tablets - Vitamin K1 for Dogs Beef-Flavored Chewable Vitamins for Cats and Dogs (50 Tablets Phytonadione 25mg)**Vet One**$20.84**4.6★464 rev](https://www.amazon.com/dp/B005JTY9RW) [3![Bio-Tech - K1-1000 (Vitamin K-1) 100 Capsules](https://m.media-amazon.com/images/I/41dQPCVMZbL.jpg)**Bio-Tech - K1-1000 (Vitamin K-1) 100 Capsules**BioTechUSA**$19.88**4.8★226 rev](https://www.amazon.com/dp/B01DUWTJR4) [4![Puritans Pride Premium Vitamin K 100mcg Dietary Supplement for Bone Joint and Blood Clotting Health Support 100 Day Supply 100 Tablets](https://m.media-amazon.com/images/I/41zkepzJZgL.jpg)**Puritans Pride Premium Vitamin K 100mcg Dietary Supplement for Bone Joint and Blood Clotting Health Support 100 Day Supply 100 Tablets**Puritan's Pride**$4.58**4.6★6,132 rev](https://www.amazon.com/dp/B004R6764Q) [5![Vitamin K1 Chewable Tablets 25mg 50ct](https://m.media-amazon.com/images/I/31rP28Cy-lL.jpg)**Vitamin K1 Chewable Tablets 25mg 50ct**V.E.T. PHARMACEUTICALS**$19.05**4.6★237 rev](https://www.amazon.com/dp/B004DDZMM6)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Dr. Green Mom Natal K Oral Vitamin K1 Drops for Newborns | Organic Phytonadione in MCT Oil | Natural VIT K for Babies to Support Blood Clotting](https://m.media-amazon.com/images/I/41yuByC8bAL.jpg)**Dr. Green Mom Natal K Oral Vitamin K1 Drops for Newborns | Organic Phytonadione in MCT Oil | Natural VIT K for Babies to Support Blood Clotting**Dr. Green Mom**$38.88**174 rev1y ago](https://www.amazon.com/dp/B0FH5FQXS8) [![Vitalibre Vitamin K Complex 2600 mcg K1 & K2 (MK-7 & MK-4) with Vitamin A & D3 5000 IU Bioavailable Full Spectrum for Bone Strength and Heart Health 90 Softgels](https://m.media-amazon.com/images/I/41y+iVaMmZL.jpg)**Vitalibre Vitamin K Complex 2600 mcg K1 & K2 (MK-7 & MK-4) with Vitamin A & D3 5000 IU Bioavailable Full Spectrum for Bone Strength and Heart Health 90 Softgels**Vitalibre**$15.52**32 rev1y ago](https://www.amazon.com/dp/B0FH4XB7FT) [![Sports Research Vitamin K Multi-Spectrum - Three Types of Vitamin K: K1 K2 MK-4 & K2 MK-7 - Vegan Friendly Plantgel Capsule - 60 softgels](https://m.media-amazon.com/images/I/41yN8XoJDkL.jpg)**Sports Research Vitamin K Multi-Spectrum - Three Types of Vitamin K: K1 K2 MK-4 & K2 MK-7 - Vegan Friendly Plantgel Capsule - 60 softgels**Sports Research**$25.69**69 rev2y ago](https://www.amazon.com/dp/B0CZS5SR41) [![Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO](https://m.media-amazon.com/images/I/41yqaoyMtdL.jpg)**Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO**Micro Ingredients**$24.38**439 rev3y ago](https://www.amazon.com/dp/B0C9PNMGR3) [![NatureBell Vitamin K Complex - 300 Softgels - Delivers 2 600mcg Vitamin K - Full Spectrum Bone & Heart Health Support Supplement - High Absorption K1 & K2 MK-4 & MK-7*](https://m.media-amazon.com/images/I/41D5OX1QYaL.jpg)**NatureBell Vitamin K Complex - 300 Softgels - Delivers 2 600mcg Vitamin K - Full Spectrum Bone & Heart Health Support Supplement - High Absorption K1 & K2 MK-4 & MK-7***NatureBell**$24.02**1,316 rev3y ago](https://www.amazon.com/dp/B0C6WWZ61Y)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Vitalibre Vitamin K Complex 2600 mcg K1 & K2 (MK-7 & MK-4) with Vitamin A & D3 5000 IU Bioavailable Full Spectrum for Bone Strength and Heart Health 90 Softgels](https://m.media-amazon.com/images/I/41y+iVaMmZL.jpg)**Vitalibre Vitamin K Complex 2600 mcg K1 & K2 (MK-7 & MK-4) with Vitamin A & D3 5000 IU Bioavailable Full Spectrum for Bone Strength and Heart Health 90 Softgels**Vitalibre**$15.52**4.6★**▲ 193%**](https://www.amazon.com/dp/B0FH4XB7FT) [![365 by Whole Foods Market Vitamin K 120 MCG 100 Tablets](https://m.media-amazon.com/images/I/31qCGCUawEL.jpg)**365 by Whole Foods Market Vitamin K 120 MCG 100 Tablets**365 by Whole Foods Market**$6.13**4.6★**▲ 81%**](https://www.amazon.com/dp/B07414HJB6) [![Vitamin K1 Chewable Tablets 25mg 50ct](https://m.media-amazon.com/images/I/31rP28Cy-lL.jpg)**Vitamin K1 Chewable Tablets 25mg 50ct**V.E.T. PHARMACEUTICALS**$19.05**4.6★**▲ 73%**](https://www.amazon.com/dp/B004DDZMM6) [![BulkSupplements.com Vitamin K1 Powder - Vitamin K1 Supplement for Bone and Heart Health Support - Gluten Free 10mg per Serving 100g (3.5 oz) (Pack of 1)](https://m.media-amazon.com/images/I/41DfELAT4OL.jpg)**BulkSupplements.com Vitamin K1 Powder - Vitamin K1 Supplement for Bone and Heart Health Support - Gluten Free 10mg per Serving 100g (3.5 oz) (Pack of 1)**BulkSupplements**$17.98**4.2★**▲ 67%**](https://www.amazon.com/dp/B01MS5OXDX) [![Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules](https://m.media-amazon.com/images/I/416El0uaZwL.jpg)**Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules**Bronson**$9.92**4.7★**▲ 61%**](https://www.amazon.com/dp/B01N6DWETQ)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -3.8% search growth over the last 90 days.

5K3KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.3×