---
title: "Amino Acid Hmb and Leucine — $11K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/amino-acid-hmb-and-leucine"
last_updated: "2026-08-06T18:32:23.653Z"
locale: en
meta:
description: "Niche score 39/100 · $11K/yr market · 7K searches/yr · $23.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $11K/yr market · 7K searches/yr · $23.97 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Amino Acid Hmb and Leucine — $11K/yr Amazon US Niche (2026) - Flapen"
---
# **amino acid hmb and leucine**
**Skip it**
A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Market size 3Growth 7Conversion 74Competition 0Returns 100Price range 86Avg price 95Brand share 0Review moat 93Quality gap 67
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$23.97**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****148.25**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$13.21–$29.26**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****6.8%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-36.7%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$11K**
$11K/yr · 7K searches
**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=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, amino acid hmb and leucine is a $11K/yr Amazon United States market (7K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Feb. Verdict: Skip it — 39/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **amino acid hmb and leucine market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **$2K–$6K**
- units × avg price
- **Conversion rate**
- **6.8%**
- **Avg BSR**
- **#174**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **2.5%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **165 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**4**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Nextdia30% - andmino28% - Jacked Factory22% - HFELIZ20%
## **Demand & seasonality**
Weekly Amazon search volume, last 76 weeks — -36.7% search growth over the last 90 days.
7K5KSpike '25Holiday '25Spike '26 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMay
Peak months: Feb · busiest ÷ quietest = 43.7×
[**Open Trend **](https://flapen.com/research/us/health-household/amino-acid-hmb-and-leucine/trend)
## **Top amino acid hmb and leucine search terms**
- **amino acid hmb and leucine**3K/yr-67.2%0.0% conv. - **leucine hmb amino acids supplement**2K/yr+49.5%0.7% conv. - **lucine and hmb amino acids**1K/yr-14.3%2.4% conv. - **leucine and hmb amino acid**377/yr+100.0%0.0% conv. - **amino acids with hmb and leucine**148/yr+433.3%0.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/amino-acid-hmb-and-leucine/search-terms)
## **Top amino acid hmb and leucine 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%$1K20%$2K30%$3K40%$4K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 4 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hmb and L-Leucine Gummies Essential Amino Acids EAA Supplements for Men & Women w/Branched-Chain Amino (BCAA) & 4 Electrolytes Taurine L-Citrulline PS Vitamins B12 & D3 Sugar Free 60Cts**Nextdia**$28.54**4.2★47 rev](https://www.amazon.com/dp/B0FRMQSM6Y) [2**andmino HMB and L-Leucine Gummies 3000mg with Trehalose for Muscle Growth Muscle Relief and Workout Recovery for Adults & Elder Non-GMO Vegan Gluten Free Apple Flavor 120**andmino**$29.26**4.4★428 rev](https://www.amazon.com/dp/B0DGK64Q3M) [3**Jacked Factory HMB + Leucine Capsules - L-Leucine 2g HMB 1g - Stimulate Muscle Growth Protect Lean Muscle Mass and Improve Athletic Performance - 180 Capsules**Jacked Factory**$13.21**4.6★39 rev](https://www.amazon.com/dp/B0GJF6VPCM) [4**HFELIZ HMB and Leucine Supplement 3500mg L-Leucine HMB with Vitamin D3 Amino Acid BCAA for Men Vegan Gluten Free 90 Capsules**HFELIZ**$24.88**4.2★79 rev](https://www.amazon.com/dp/B0DQ6QXCSV)
### **Newest**
by launch date
[**Jacked Factory HMB + Leucine Capsules - L-Leucine 2g HMB 1g - Stimulate Muscle Growth Protect Lean Muscle Mass and Improve Athletic Performance - 180 Capsules**Jacked Factory**$13.21**39 rev5mo ago](https://www.amazon.com/dp/B0GJF6VPCM) [**Hmb and L-Leucine Gummies Essential Amino Acids EAA Supplements for Men & Women w/Branched-Chain Amino (BCAA) & 4 Electrolytes Taurine L-Citrulline PS Vitamins B12 & D3 Sugar Free 60Cts**Nextdia**$28.54**47 rev10mo ago](https://www.amazon.com/dp/B0FRMQSM6Y) [**HFELIZ HMB and Leucine Supplement 3500mg L-Leucine HMB with Vitamin D3 Amino Acid BCAA for Men Vegan Gluten Free 90 Capsules**HFELIZ**$24.88**79 rev1y ago](https://www.amazon.com/dp/B0DQ6QXCSV) [**andmino HMB and L-Leucine Gummies 3000mg with Trehalose for Muscle Growth Muscle Relief and Workout Recovery for Adults & Elder Non-GMO Vegan Gluten Free Apple Flavor 120**andmino**$29.26**428 rev1y ago](https://www.amazon.com/dp/B0DGK64Q3M)
### **Trending**
90-day click momentum
[**Jacked Factory HMB + Leucine Capsules - L-Leucine 2g HMB 1g - Stimulate Muscle Growth Protect Lean Muscle Mass and Improve Athletic Performance - 180 Capsules**Jacked Factory**$13.21**4.6★**▲ 358%**](https://www.amazon.com/dp/B0GJF6VPCM) [**Hmb and L-Leucine Gummies Essential Amino Acids EAA Supplements for Men & Women w/Branched-Chain Amino (BCAA) & 4 Electrolytes Taurine L-Citrulline PS Vitamins B12 & D3 Sugar Free 60Cts**Nextdia**$28.54**4.2★**▲ 350%**](https://www.amazon.com/dp/B0FRMQSM6Y) [**HFELIZ HMB and Leucine Supplement 3500mg L-Leucine HMB with Vitamin D3 Amino Acid BCAA for Men Vegan Gluten Free 90 Capsules**HFELIZ**$24.88**4.2★**▼ 45%**](https://www.amazon.com/dp/B0DQ6QXCSV) [**andmino HMB and L-Leucine Gummies 3000mg with Trehalose for Muscle Growth Muscle Relief and Workout Recovery for Adults & Elder Non-GMO Vegan Gluten Free Apple Flavor 120**andmino**$29.26**4.4★**▼ 46%**](https://www.amazon.com/dp/B0DGK64Q3M)
## **What buyers say about amino acid hmb and leucine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Efficiency**21%
*“I conclude it is effective”*
**Taste-Overall**12%
*“taste like blue raspberry”*
**Muscle Pain Relief**10%
*“better muscle retention during training”*
**Quality-Overall**7%
*“Great product”*
**Ease Of Use**6%
*“convenient way to accurately add a precise dose of leucine whenever I want it”*
**Value For Money**5%
*“I will actually likely be buying these again because the cost isn't that bad”*
**Ease Of Chewing/Swallowing**4%
*“Still, for anyone who wants a simple, chewable option to support training and hydration, theyre a solid pick”*
**Vitamin**3%
*“Definitely worth adding to your supplement stack”*
**Advertised Vs Actual Product**3%
*“Work as intended”*
**Texture/Consistency-Overall**3%
*“Great texture”*
### **What buyers complain about **
**Side Effects**22%
*“No noticeable effects”*
**Value For Money**15%
*“a bit on the high side of price”*
**Acid Regulator/Stomach Ache Relief**11%
*“Awful, gives me bloating and stomach aches”*
**Nutritional Content**4%
*“may not contain sufficient leucine to trigger muscle building/repair”*
**Vegan/Organic**2%
*“A healthy temptation — not remotely vegan”*
**Energy Level**2%
*“it kills our energy level”*
**Hard Feel**1%
*“a bit tough”*
**Taste-Overall**1%
*“have a little bit of a chemical metallic aftertaste”*
**Adhesion/Stickiness**1%
*“a little sticky”*
**Ease Of Chewing/Swallowing**1%
*“I usually end up swallowing them”*
## **Common questions**
- **Is amino acid hmb and leucine profitable to sell on Amazon United States?**
- The niche generates $11K/yr across 4 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -36.7%. Flapen's verdict: Skip it (39/100).
- **How competitive is the amino acid hmb and leucine niche?**
- 4 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 amino acid hmb and leucine?**
- Top complaints mined from reviews: Side Effects, Value For Money, Acid Regulator/Stomach Ache Relief. The return rate is 0.1%.
- **When does demand for amino acid hmb and leucine peak?**
- Demand peaks in Feb; the busiest month runs 43.7× the quietest.
- **What does it cost to enter the amino acid hmb and leucine niche?**
- Listings span $13.21–$29.26; the average listing price is $23.97 (sweet spot $15–$100). The average incumbent carries 148 reviews — the moat a new listing must climb.
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