---
title: "Tylenol Muscle Aches & Pain 800 Mg 8 Hour — $765K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/tylenol-muscle-aches-pain-800-mg-8-hour"
last_updated: "2026-08-10T12:25:33.843Z"
locale: en
meta:
description: "Niche score 50/100 · $765K/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $765K/yr market. Brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Tylenol Muscle Aches & Pain 800 Mg 8 Hour — $765K/yr Amazon US Niche (2026) - Flapen"
---
# **tylenol muscle aches & pain 800 mg 8 hour**
**Worth a look**
Shows low returns (0.0%), but brand-locked demand (top 5 brands take 95% of clicks) keeps it on the watch list.
Market size 71Growth 23Conversion 96Competition 20Returns 100Price range 72Avg price 75Brand share 11Review moat 25Quality gap 38
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$14.94**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$4.09–$42.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$765K**
$765K/yr · 372K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,885.07**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-3.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, tylenol muscle aches & pain 800 mg 8 hour is a $765K/yr Amazon United States market (372K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 50/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **tylenol muscle aches & pain 800 mg 8 hour market data**
- **Units sold / yr**
- **40K–50K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$598K–$747K**
- units × avg price
- **Conversion rate**
- **13.8%**
- **Avg BSR**
- **#112**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **67%**
- **Out of stock**
- **9.2%**
- **Avg brand age**
- **70 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **—flat
**Sellers**
**72**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**3%**
- Doans38% - Backaid24% - Flanax22% - Advil8% - MagniLife3% - Bayer2% - Open — no brand owns it (2 brands, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -3.6% search growth over the last 90 days.
9K7KSpike '24Spike '25Black Friday '25 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/tylenol-muscle-aches-pain-800-mg-8-hour/trend)
## **Top tylenol muscle aches & pain 800 mg 8 hour search terms**
- **flanax**60K/yr+6.0%4.0% conv. - **flanax tablets 550 mg inflammation muscular**56K/yr-1.1%3.3% conv. - **doans extra strength back pills**55K/yr-5.8%19.4% conv. - **backaid maximum strength back relief**26K/yr+30.4%17.7% conv. - **doans back pain relief pills extra strength**21K/yr+3.1%17.8% conv. - **doans**21K/yr-16.2%12.9% conv. - **advil back pain**11K/yr+56.9%13.4% conv. - **backaid**18K/yr+0.4%16.2% conv. - **back pain medicine**16K/yr-15.5%6.0% conv. - **back aid maximum strength pills**12K/yr-2.4%19.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/tylenol-muscle-aches-pain-800-mg-8-hour/search-terms)
## **Top tylenol muscle aches & pain 800 mg 8 hour 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%10%$76K20%$153K30%$229K40%$306K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Doans Maximum Strength Back Pain Relief 580 mg - 100 Caplets - Back Pain Reliever (NSAID) with Magnesium Salicylate Tetrahydrate**Doans**$13.17**4.4★7,044 rev](https://www.amazon.com/dp/B0FCH1C6TW) [2**Backaid Maximum Strength Aspirin-Free Pain Relief from Backache Sciatica and Leg Pain Powerful Combination Long-Lasting 6 Hour Formula 38 Count**Backaid**$6.76**4.3★2,670 rev](https://www.amazon.com/dp/B008FZC4MO) [3**Flanax Pain Reliever Tablets 2ct Retail Dispenser**Flanax**$9.10**4.5★100 rev](https://www.amazon.com/dp/B0FL9MG7B6) [4**Doans Extra Strength Pain Reliever Caplets 24 Count**Doans**$6.29**4.4★7,044 rev](https://www.amazon.com/dp/B00DNBUB1G) [5**Advil Dual Action Back Pain Caplets Delivers 125mg Ibuprofen and 250mg Acetaminophen Per Dose for 8 Hours of Back Pain Relief - 144 Count**Advil**$17.24**4.8★8,316 rev](https://www.amazon.com/dp/B0BQJP2KBW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Flanax Pain Reliever Tablets 2ct Retail Dispenser**Flanax**$9.10**100 rev11mo ago](https://www.amazon.com/dp/B0FL9MG7B6) [**Doans Maximum Strength Back Pain Relief 580 mg - 100 Caplets - Back Pain Reliever (NSAID) with Magnesium Salicylate Tetrahydrate**Doans**$13.17**7,044 rev1y ago](https://www.amazon.com/dp/B0FCH1C6TW) [**Advil Dual Action Back Pain Caplets Delivers 250mg Ibuprofen and 500mg Acetaminophen Per Dose for 8 Hours of Back Pain Relief - 18 Count**Advil**$4.09**8,316 rev3y ago](https://www.amazon.com/dp/B0BRNN37TL) [**Advil Dual Action Back Pain Caplets Delivers 125mg Ibuprofen and 250mg Acetaminophen Per Dose for 8 Hours of Back Pain Relief - 144 Count**Advil**$17.24**8,316 rev3y ago](https://www.amazon.com/dp/B0BQJP2KBW) [**Backaid Heat Therapy Patch Air-Activated Therapeutic Heat Wide for Lower Back and Hip Pain Relief 6 Count**Backaid**$11.65**1,074 rev4y ago](https://www.amazon.com/dp/B0B29MDTD4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Doans Maximum Strength Back Pain Relief 580 mg - 100 Caplets - Back Pain Reliever (NSAID) with Magnesium Salicylate Tetrahydrate**Doans**$13.17**4.4★**▲ 230%**](https://www.amazon.com/dp/B0FCH1C6TW) [**Flanax Pain Relief Cream 1oZ**Flanax**$8.48**4.6★**▲ 184%**](https://www.amazon.com/dp/B0050D6BUU) [**Doans Extra Strength Pain Reliever Caplets 24 Count**Doans**$6.29**4.4★**▲ 112%**](https://www.amazon.com/dp/B00DNBUB1G) [**Flanax Pain Reliever Tablets 2ct Retail Dispenser**Flanax**$9.10**4.5★**▲ 57%**](https://www.amazon.com/dp/B0FL9MG7B6) [**Advil Dual Action Back Pain Caplets Delivers 250mg Ibuprofen and 500mg Acetaminophen Per Dose for 8 Hours of Back Pain Relief - 18 Count**Advil**$4.09**4.8★**▲ 49%**](https://www.amazon.com/dp/B0BRNN37TL)
**~~View all trending →~~**
## **What buyers say about tylenol muscle aches & pain 800 mg 8 hour**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Joint Pain**20%
*“Excellent for Back & Joint Pain”*
**Efficiency**17%
*“It works fast and well”*
**Quality-Overall**14%
*“No complaints”*
**Value For Money**10%
*“Worth the money”*
**Muscle Pain Relief**8%
*“a muscle relaxer that relaxes muscles”*
**Advertised Vs Actual Product**7%
*“works as advertised”*
**Dosage**3%
*“the price was good for the amount of pills that you get as well”*
**Ease Of Use**3%
*“Very useful”*
**Posture Enhancer**2%
*“GOOD FOR BACK”*
**Sleep Quality**1%
*“I can Sleep comfortable all night into the morning”*
### **What buyers complain about **
**Pain Relief-Overall**28%
*“no pain relief at all”*
**Functionality-Overall**21%
*“Not effective”*
**Advertised Vs Actual Product**5%
*“Not as advertised”*
**Value For Money**5%
*“Waste of money”*
**Dosage**3%
*“I feel like this is odd dosage amounts”*
**Muscle Pain Relief**3%
*“Muscle pain”*
**Joint Pain**3%
*“does nothing for back pain”*
**Strength**2%
*“Not strong back medinr”*
**Allergies**2%
*“Rash”*
**Side Effects**2%
*“Im not sure why this made me feel so bad”*
### **Top return reasons **
**Heating**39%
**Adhesion/Stickiness**15%
**Advertised Vs Actual Product**7%
**Value For Money**6%
**Age Suitability**6%
**Functionality-Overall**4%
**Size-Overall**4%
**Pain Relief-Overall**3%
**Skin Health**3%
**Side Effects**3%
## **Common questions**
- **Is tylenol muscle aches & pain 800 mg 8 hour profitable to sell on Amazon United States?**
- The niche generates $765K/yr across 15 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.6%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the tylenol muscle aches & pain 800 mg 8 hour niche?**
- 8 brands and 72 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in tylenol muscle aches & pain 800 mg 8 hour?**
- Top complaints mined from reviews: Pain Relief-Overall, Functionality-Overall, Advertised Vs Actual Product. The return rate is 0.0%.
- **When does demand for tylenol muscle aches & pain 800 mg 8 hour peak?**
- Demand peaks in Apr–May; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the tylenol muscle aches & pain 800 mg 8 hour niche?**
- Listings span $4.09–$42.99; the average listing price is $14.94 (sweet spot $15–$100). The average incumbent carries 4,885 reviews — the moat a new listing must climb.
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