---
title: "L-carnitine 1000mg Capsules — Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/l-carnitine-1000mg-capsules"
last_updated: "2026-08-12T16:03:19.829Z"
locale: en
meta:
description: "Amazon product research for l-carnitine 1000mg capsules: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for l-carnitine 1000mg capsules: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "L-carnitine 1000mg Capsules — Amazon US Product Research"
---
# **L-carnitine 1000mg Capsules**
**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 53Growth 32Conversion 84Competition 25Returns 100Price range 85Avg price 94Brand share 11Review moat 36Quality gap 35
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$22.69**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.65–$50.60**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$351K**
$351K/yr · 167K searches
**Review moat**
**Okay****2,876.14**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+5.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****70%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
## **Is l-carnitine 1000mg capsules profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, l-carnitine 1000mg capsules is a $351K/yr Amazon United States market (167K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 50/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **l-carnitine 1000mg capsules market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **15K–20K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$340K–$454K**
- units × avg price
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#158**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **79%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **86 months**
- **Avg seller age**
- **168 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**7 **▼falling
**Sellers**
**22**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**2%**
- Nutricost52% - NOW Foods21% - BulkSupplements17% - Carlyle3% - Best Naturals3% - Pure Encapsulations3% - Open — no brand owns it (1 brand, 2%)
## **l-carnitine 1000mg capsules demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +5.8% search growth over the last 90 days.
4K3KSpike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/health-household/l-carnitine-1000mg-capsules/trend)
## **Top l-carnitine 1000mg capsules search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **l carnitine tartrate**53K/yr+7.7%9.4% conv. - **l carnitine 1000mg**28K/yr+9.2%7.2% conv. - **l-carnitine tartrate**20K/yr-6.2%9.2% conv. - **l-carnitine l-tartrate**15K/yr+5.9%8.7% conv. - **l-carnitine 1000mg**11K/yr+26.5%8.9% conv. - **l carnitine l tartrate**13K/yr-8.0%9.2% conv. - **l-carnitine 1000mg capsules**7K/yr-9.7%2.0% conv. - **now l carnitine**5K/yr+8.4%6.1% conv. - **carnitine tartrate**4K/yr-2.2%10.2% conv. - **l carnitine now**3K/yr+22.3%7.2% conv. [**All search terms **](https://flapen.com/research/us/health-household/l-carnitine-1000mg-capsules/search-terms)
## **Top l-carnitine 1000mg capsules products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$35K20%$70K30%$105K40%$140K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Nutricost L-Carnitine Tartrate 1 000mg 240 Capsules - 500mg Per Capsule 120 Servings**Nutricost**$19.67**4.6★4,208 rev](https://www.amazon.com/dp/B06Y1BTLGK) [2**NOW Foods Supplements L-Carnitine 1 000 mg Purest Form Amino Acid Fitness Support* 100 Tablets**NOW Foods**$26.23**4.6★5,550 rev](https://www.amazon.com/dp/B0013OSNCE) [3**BulkSupplements.com L-Carnitine L-Tartrate Capsules - Carnitine Supplement L Carnitine 1000mg Capsules - L-Carnitine Tartrate Gluten Free - 2 Capsules per Serving 360 Capsules (Pack of 1)**BulkSupplements**$23.62**4.5★346 rev](https://www.amazon.com/dp/B0BB8DT1ZZ) [4**NOW Foods Supplements L-Carnitine 1 000 mg Purest Form Carnipure Amino Acid Fitness Support Tablets 150 Count**NOW Foods**$41.37**4.7★265 rev](https://www.amazon.com/dp/B0CPNHF3D4) [5**Nutricost L-Carnitine Tartrate Powder (250 Grams) - 1 Gram per Serving 250 Servings**Nutricost**$23.63**4.5★3,161 rev](https://www.amazon.com/dp/B01MQDLB83)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**NOW Foods Supplements L-Carnitine 1 000 mg Purest Form Carnipure Amino Acid Fitness Support Tablets 150 Count**NOW Foods**$41.37**265 rev2y ago](https://www.amazon.com/dp/B0CPNHF3D4) [**BulkSupplements.com L-Carnitine 1000mg Capsules - Carnitine Supplement Amino Acid Supplement - Gluten Free 2 Capsules per Serving (1000mg) 240 Count (Pack of 1)**BulkSupplements**$20.69**330 rev3y ago](https://www.amazon.com/dp/B0C3SFJRQD) [**BulkSupplements.com L-Carnitine L-Tartrate Capsules - Carnitine Supplement L Carnitine 1000mg Capsules - L-Carnitine Tartrate Gluten Free - 2 Capsules per Serving 360 Capsules (Pack of 1)**BulkSupplements**$23.62**346 rev3y ago](https://www.amazon.com/dp/B0BB8DT1ZZ) [**Carlyle L Carnitine Tartrate 2175mg | 200 Capsules | Advanced Athlete Formula | Workout Supplement | As L-Carnitine L-Tartrate | Non-GMO Gluten Free**Carlyle**$18.98**308 rev4y ago](https://www.amazon.com/dp/B09H64X172) [**NaturaLife Labs Acetyl L-Carnitine (ALCAR) 1500 mg per Serving 100 Capsules Non-GMO Gluten-Free Vegan**NaturaLife Labs**$16.88**13,578 rev7y ago](https://www.amazon.com/dp/B07Q6ZVMK4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BulkSupplements.com L-Carnitine 1000mg Capsules - Carnitine Supplement Amino Acid Supplement - Gluten Free 2 Capsules per Serving (1000mg) 240 Count (Pack of 1)**BulkSupplements**$20.69**4.4★**▲ 95%**](https://www.amazon.com/dp/B0C3SFJRQD) [**BulkSupplements.com L-Carnitine L-Tartrate Capsules - Carnitine Supplement L Carnitine 1000mg Capsules - L-Carnitine Tartrate Gluten Free - 2 Capsules per Serving 360 Capsules (Pack of 1)**BulkSupplements**$23.62**4.5★**▲ 49%**](https://www.amazon.com/dp/B0BB8DT1ZZ) [**NOW Foods Supplements L-Carnitine 1 000 mg Purest Form Carnipure Amino Acid Fitness Support Tablets 150 Count**NOW Foods**$41.37**4.7★**▲ 45%**](https://www.amazon.com/dp/B0CPNHF3D4) [**Nutricost L-Carnitine Tartrate 1000mg 120 Capsules - 500mg Per Capsule (60 Servings)**Nutricost**$14.90**4.6★**▲ 36%**](https://www.amazon.com/dp/B088P9FMVY) [**NOW Foods Supplements L-Carnitine 500mg Purest Form Amino Acid Fitness Support* 60 Veg Capsules**NOW Foods**$14.72**4.6★**▲ 28%**](https://www.amazon.com/dp/B0013OSLQW)
**~~View all trending →~~**
## **Common l-carnitine 1000mg capsules questions**
- **Is l-carnitine 1000mg capsules profitable to sell on Amazon United States?**
- The niche generates $351K/yr across 14 tracked products. 90-day search growth is +5.8%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the l-carnitine 1000mg capsules niche?**
- 7 brands and 22 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 95% of demand.
- **When does demand for l-carnitine 1000mg capsules peak?**
- Demand peaks in May–Jun; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the l-carnitine 1000mg capsules niche?**
- Listings span $9.65–$50.60; the average listing price is $22.69 (sweet spot $15–$100). The average incumbent carries 2,876 reviews — the moat a new listing must climb.
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