---
title: "Stress B Complex — $247K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/stress-b-complex"
last_updated: "2026-08-10T22:33:34.257Z"
locale: en
meta:
description: "Niche score 46/100 · $247K/yr market · 101K searches/yr · $16.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $247K/yr market · 101K searches/yr · $16.54 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Stress B Complex — $247K/yr Amazon US Niche (2026) - Flapen"
---
# **stress b complex**
**Skip it**
Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.
Market size 46Growth 39Conversion 97Competition 12Returns 100Price range 66Avg price 79Brand share 8Review moat 23Quality gap 23
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.7%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$16.54**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$8.76–$27.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$247K**
$247K/yr · 101K searches
**Growth**
**Okay****+11.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****7,246.44**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, stress b complex is a $247K/yr Amazon United States market (101K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 46/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **stress b complex market data**
- **Units sold / yr**
- **15K–20K**
- avg 2,500–3,000/product
- **Revenue / yr**
- **$248K–$331K**
- units × avg price
- **Conversion rate**
- **14.7%**
- **Avg BSR**
- **#444**
- **Page quality**
- **0%**
- **Prime**
- **89%**
- **Sponsored**
- **56%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **94 months**
- **Avg seller age**
- **156 days**
## **Competition & brand share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**610**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**0%**
- THORNE61% - Nature Made18% - 365 by Whole Foods Market9% - BlueBonnet5% - MASON NATURAL3% - Carlyle3% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +11.1% search growth over the last 90 days.
7K5KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.7×
[**Open Trend **](https://flapen.com/research/us/health-household/stress-b-complex/trend)
## **Top stress b complex search terms**
- **stress b complex**31K/yr+13.4%8.1% conv. - **thorne stress b-complex**24K/yr+2.4%24.4% conv. - **stress b complex with vitamin c and zinc**7K/yr+43.3%2.6% conv. - **b complex stress**5K/yr+12.2%5.3% conv. - **vitamin stress b complex**4K/yr+123.6%0.5% conv. - **b complex with zinc**5K/yr-4.0%3.1% conv. - **vitamin b stress complex**4K/yr-6.2%6.8% conv. - **b stress complex vitamins**5K/yr-5.8%7.6% conv. - **stress b complex vitamins**4K/yr-6.5%7.7% conv. - **stress b**3K/yr-12.3%11.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/stress-b-complex/search-terms)
## **Top stress b complex 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%$37K30%$74K45%$111K60%$148K101001K10K100K 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**THORNE - Stress B-Complex - Vitamins B2 B6 B12 & Folate in Highly-Absorbable and Active Forms - Extra Vitamin B5 for Adrenal Support Stress Management & Immune Function* - 60 Servings**THORNE**$25.34**4.6★4,120 rev](https://www.amazon.com/dp/B0797DVMF3) [2**Nature Made Super B Complex with Vitamin C & Folic Acid 140 Tablets**Nature Made**$9.63**4.7★43,424 rev](https://www.amazon.com/dp/B005D0DTS2) [3**Nature Made Stress B Complex with Vitamin C and Zinc B Complex Vitamins for Women and Men Immune Support 75 Tablets 75 Day Supply**Nature Made**$10.68**4.7★10,555 rev](https://www.amazon.com/dp/B005DXM34A) [4**THORNE - Basic B-Complex - Tissue-Ready Vitamin B Complex Supplement with Choline - Supports Cellular Energy Production Brain Health & Red Blood Cell Formation* - Gluten-Free - 60 Servings**THORNE**$26.40**4.7★4,620 rev](https://www.amazon.com/dp/B00HST919C) [5**365 by Whole Foods Market Vitamin B Stress Complex with Vitamin C 90 Veg Capsules**365 by Whole Foods Market**$12.12**4.6★73 rev](https://www.amazon.com/dp/B074KKM2FT)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Carlyle Stress B Complex with Vitamin C | 180 Caplets**Carlyle**$8.76**226 rev3y ago](https://www.amazon.com/dp/B0BN6TSL9C) [**MASON NATURAL Stress B Complex with Antioxidants + Zinc 6 Month Supply Dual Action Formula Supports Energy Metabolism & Immune Health 3 Pack**MASON NATURAL**$18.42**101 rev3y ago](https://www.amazon.com/dp/B0BGMG9G51) [**365 by Whole Foods Market Vitamin B Stress Complex with Vitamin C 90 Veg Capsules**365 by Whole Foods Market**$12.12**73 rev7y ago](https://www.amazon.com/dp/B074KKM2FT) [**365 by Whole Foods Market Stress B-Complex with Vitamin C Energy & Nervous System Support Vegan 60 Capsules**365 by Whole Foods Market**$10.20**865 rev8y ago](https://www.amazon.com/dp/B074H5LXZN) [**Nature Made Super B Complex with Vitamin C & Folic Acid 140 Tablets**Nature Made**$9.63**43,424 rev15y ago](https://www.amazon.com/dp/B005D0DTS2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**MASON NATURAL Stress B Complex with Antioxidants + Zinc 6 Month Supply Dual Action Formula Supports Energy Metabolism & Immune Health 3 Pack**MASON NATURAL**$18.42**4.5★**▲ 112%**](https://www.amazon.com/dp/B0BGMG9G51) [**Nature Made Super B Complex with Vitamin C & Folic Acid 140 Tablets**Nature Made**$9.63**4.7★**▲ 71%**](https://www.amazon.com/dp/B005D0DTS2) [**365 by Whole Foods Market Vitamin B Stress Complex with Vitamin C 90 Veg Capsules**365 by Whole Foods Market**$12.12**4.6★**▲ 46%**](https://www.amazon.com/dp/B074KKM2FT) [**Carlyle Stress B Complex with Vitamin C | 180 Caplets**Carlyle**$8.76**4.7★**▲ 25%**](https://www.amazon.com/dp/B0BN6TSL9C) [**365 by Whole Foods Market Stress B-Complex with Vitamin C Energy & Nervous System Support Vegan 60 Capsules**365 by Whole Foods Market**$10.20**4.5★**▲ 13%**](https://www.amazon.com/dp/B074H5LXZN)
**~~View all trending →~~**
## **What buyers say about stress b complex**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“The brand is straightforward”*
**Vitamin**20%
*“Great Daily Vitamin Boost”*
**Energy Level**7%
*“Helps me with energy a bit”*
**Value For Money**7%
*“Good value”*
**Advertised Vs Actual Product**6%
*“As described”*
**Ease Of Chewing/Swallowing**5%
*“Not hard to swallow”*
**Stress/Anxiety**3%
*“It does help with stress”*
**Joint Pain**2%
*“Really helped with toe neuropathy”*
**Acid Regulator/Stomach Ache Relief**2%
*“Works wonderfully and does not upset my belly”*
**Nutritional Content**2%
*“Healthy Choice”*
### **What buyers complain about **
**Smell**11%
*“There is a slight smell”*
**Dosage**7%
*“Any dose above 1.4mg / day is toxic to your body”*
**Vitamin**7%
*“Smelly vitamins”*
**Energy Level**6%
*“I can't tell a difference in energy”*
**Side Effects**5%
*“Caused Strong Burping and Discomfort”*
**Taste-Overall**5%
*“they would make my other pills taste/smell horrible too”*
**Ingredients-Overall**3%
*“all of the nasty chemicals used during production are removed”*
**Advertised Vs Actual Product**3%
*“vitamins. B12 I wanted something that didnt have arsenic in it and this does not.”*
**Calcium**3%
*“Too much Niacin”*
**Sleep Quality**3%
*“If you do buy do not take it in the evening, will cause uneasiness and potentially insomnia”*
### **Top return reasons **
**Vitamin**67%
**Acid Regulator/Stomach Ache Relief**33%
## **Common questions**
- **Is stress b complex profitable to sell on Amazon United States?**
- The niche generates $247K/yr across 9 tracked products. 90-day search growth is +11.1%. Flapen's verdict: Skip it (46/100).
- **How competitive is the stress b complex niche?**
- 6 brands and 610 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in stress b complex?**
- Top complaints mined from reviews: Smell, Dosage, Vitamin. The return rate is 0.0%.
- **When does demand for stress b complex peak?**
- Demand peaks in Jun–Jul; the busiest month runs 2.7× the quietest.
- **What does it cost to enter the stress b complex niche?**
- Listings span $8.76–$27.29; the average listing price is $16.54 (sweet spot $15–$100). The average incumbent carries 7,246 reviews — the moat a new listing must climb.
## **Related niches in Health & Household**
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)