---
title: "Mk677 — £89K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/mk677"
last_updated: "2026-07-31T22:00:37.859Z"
locale: en
meta:
description: "Niche score 40/100 · £89K/yr market · 240K searches/yr · £22.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · £89K/yr market · 240K searches/yr · £22.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Mk677 — £89K/yr Amazon UK Niche (2026) - Flapen"
---
# **mk677**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 22Growth 8Conversion 21Competition 0Returns 99Price range 92Avg price 94Brand share 0Review moat 93Quality gap 96
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Quality gap**
**Incredible****3.9★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****£22.51**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****140.67**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****£14.28–£33.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Bad****£89K**
£89K/yr · 240K searches
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-34.4%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****100%**
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=uk&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=uk&signal=quality_gap "Avg rating < 4.0") [** Out of Stock**](https://flapen.com/research/niches?market=uk&signal=out_of_stock "OOS rate > 10%")
According to Flapen's Amazon United Kingdom niche tracking, mk677 is a £89K/yr Amazon United Kingdom market (240K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep–Oct–Nov. Verdict: Skip it — 40/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mk677 market data**
- **Units sold / yr**
- **2K–3K**
- avg 1,000–1,250/product
- **Revenue / yr**
- **£45K–£56K**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#133**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **67%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **164 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **—flat
**Sellers**
**4**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Insynergy Labs80% - Natural Answers13% - Generic7%
## **Demand & seasonality**
Weekly Amazon search volume, last 63 weeks — -34.4% search growth over the last 90 days.
6K4KSpike '25Prime Day '25 seasonJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Aug, Sep, Oct, Nov · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/mk677/trend)
## **Top mk677 search terms**
- **mk677**62K/yr-32.3%2.0% conv. - **mk677 ibutamoren**80K/yr-57.0%0.5% conv. - **human growth hormone**33K/yr-15.4%0.1% conv. - **mk 677**15K/yr+7.5%0.9% conv. - **hgh**14K/yr-19.7%0.4% conv. - **growth hormone for men**6K/yr+3.9%0.1% conv. - **enclomiphene**6K/yr-33.7%0.0% conv. - **hgh growth hormone for men**5K/yr-17.6%1.4% conv. - **growth hormone**3K/yr-24.6%0.0% conv. - **mk677 growth hormone**2K/yr-52.2%1.2% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/mk677/search-terms)
## **Top mk677 products on Amazon**
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**MK-Peptides 677 100% Natural Formula Supplement for Men Normal Muscle Function Energy Recovery High-Purity Arginine Maca Ashwagandha Ornithine Lysine Glutamine Glycine 120 Vegan Capsules**Insynergy Labs**£33.59**3.8★102 rev](https://www.amazon.co.uk/dp/B0DWN46K5R) [2**180 Super HGH Vegan Capsules - (3 Months Supply) 9-in-1 HGH Complex with Vitamin B6 and Tribulus Terrestris Extract - Made in the UK**Natural Answers**£14.28**4.0★320 rev](https://www.amazon.co.uk/dp/B07CMGW8V8) [3**MK-677- Strength and Health Improvement Built for Training Routines & Active Lifestyles**Generic**£19.65**0.0★0 rev](https://www.amazon.co.uk/dp/B0H24BN5J5)
### **Newest**
by launch date
[**MK-677- Strength and Health Improvement Built for Training Routines & Active Lifestyles**Generic**£19.65**0 rev2mo ago](https://www.amazon.co.uk/dp/B0H24BN5J5) [**MK-Peptides 677 100% Natural Formula Supplement for Men Normal Muscle Function Energy Recovery High-Purity Arginine Maca Ashwagandha Ornithine Lysine Glutamine Glycine 120 Vegan Capsules**Insynergy Labs**£33.59**102 rev1y ago](https://www.amazon.co.uk/dp/B0DWN46K5R) [**180 Super HGH Vegan Capsules - (3 Months Supply) 9-in-1 HGH Complex with Vitamin B6 and Tribulus Terrestris Extract - Made in the UK**Natural Answers**£14.28**320 rev8y ago](https://www.amazon.co.uk/dp/B07CMGW8V8)
### **Trending**
90-day click momentum
[**MK-677- Strength and Health Improvement Built for Training Routines & Active Lifestyles**Generic**£19.65**0.0★**▲ 558%**](https://www.amazon.co.uk/dp/B0H24BN5J5) [**180 Super HGH Vegan Capsules - (3 Months Supply) 9-in-1 HGH Complex with Vitamin B6 and Tribulus Terrestris Extract - Made in the UK**Natural Answers**£14.28**4.0★**▲ 52%**](https://www.amazon.co.uk/dp/B07CMGW8V8) [**MK-Peptides 677 100% Natural Formula Supplement for Men Normal Muscle Function Energy Recovery High-Purity Arginine Maca Ashwagandha Ornithine Lysine Glutamine Glycine 120 Vegan Capsules**Insynergy Labs**£33.59**3.8★**▼ 11%**](https://www.amazon.co.uk/dp/B0DWN46K5R)
## **What buyers say about mk677**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Dosage**20%
*“I take it twice a day”*
**Advertised Vs Actual Product**20%
*“As expected”*
**Visibility**20%
*“Great Product can see results after a month cycle”*
**Satisfaction/Pleasure**10%
*“I am quite satisfied with the results”*
**Quality-Overall**10%
*“Good quality”*
**Locally Manufactured**7%
*“made in the UK”*
**Ingredients-Overall**7%
*“Great price, made in the UK & ingredients that I have been researching”*
**Value For Money**7%
*“Great price”*
### **What buyers complain about **
**Value For Money**33%
*“A bit pricey”*
**Ingredients-Overall**33%
*“Only other ingredients”*
**Advertised Vs Actual Product**17%
*“False advertisement and a waste of money do not buy”*
**Ethical Trade/Fair Trade**17%
*“Untrusted company that lied to people”*
## **Common questions**
- **Is mk677 profitable to sell on Amazon United Kingdom?**
- The niche generates £89K/yr across 3 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -34.4%. Flapen's verdict: Skip it (40/100).
- **How competitive is the mk677 niche?**
- 3 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in mk677?**
- Top complaints mined from reviews: Value For Money, Ingredients-Overall, Advertised Vs Actual Product. The return rate is 0.2%.
- **When does demand for mk677 peak?**
- Demand peaks in Aug–Sep–Oct–Nov; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the mk677 niche?**
- Listings span £14.28–£33.59; the average listing price is £22.51 (sweet spot $15–$100). The average incumbent carries 141 reviews — the moat a new listing must climb.
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