---
title: "Liquid Melatonin — $43K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/liquid-melatonin"
last_updated: "2026-08-12T16:11:24.807Z"
locale: en
meta:
description: "Amazon product research for liquid melatonin: $43K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for liquid melatonin: $43K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Liquid Melatonin — $43K/mo Amazon US Product Research (2026)"
---
# **Liquid Melatonin**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 60Growth 23Conversion 96Competition 49Returns 100Price range 69Avg price 52Brand share 54Review moat 33Quality gap 45
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.0%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$5.68–$35.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****$512K**
$512K/yr · 323K searches
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Good****$12.19**
avg listing price — sweet spot $15–$100
**Competition**
**Okay****56%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****3,198**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-4.7%**
90-day search growth — must beat 0% to launch
## **Is liquid melatonin profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, liquid melatonin is a $512K/yr Amazon United States market (323K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 57/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **liquid melatonin market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **40K–50K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$488K–$610K**
- units × avg price
- **Conversion rate**
- **13.0%**
- **Avg BSR**
- **#588**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **80%**
- **Out of stock**
- **1.5%**
- **Avg brand age**
- **73 months**
- **Avg seller age**
- **154 days**
## **Competition: brands, sellers & click share**
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**16 **▼falling
**Sellers**
**598**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**56%**
Top 20: 100%
**Open market**
**22%**
- Natrol32% - Vitamatic14% - Carlyle12% - Zarbee's8% - NOW Foods6% - Pure Encapsulations6%
## **liquid melatonin demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.7% search growth over the last 90 days.
7K5KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/health-household/liquid-melatonin/trend)
## **Top liquid melatonin search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **liquid melatonin**127K/yr-3.3%11.9% conv. - **melatonin liquid**63K/yr+5.8%10.1% conv. - **melatonin drops**39K/yr-0.2%10.2% conv. - **liquid melatonin for adults**21K/yr+5.7%10.6% conv. - **melatonin drops for adults**13K/yr-11.5%9.5% conv. - **melatonin liquid drops**5K/yr+87.2%11.6% conv. - **liquid melatonin drops**10K/yr-42.1%10.2% conv. - **melatonin liquid for adults**14K/yr-43.6%9.1% conv. - **liquid melatonin 10mg**9K/yr-35.1%10.8% conv. - **melatonin oil**4K/yr+9.7%1.8% conv. [**All search terms **](https://flapen.com/research/us/health-household/liquid-melatonin/search-terms)
## **Top liquid melatonin 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%$51K20%$102K30%$154K40%$205K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Natrol Liquid Melatonin for Adults 1 mg Berry-Flavored 2 Fl Oz**Natrol**$6.45**4.5★9,175 rev](https://www.amazon.com/dp/B07DW9LJG3) [2**Natrol Liquid Melatonin for Adults 2.5 mg Berry-Flavored 8 Fl Oz**Natrol**$11.76**4.5★5,112 rev](https://www.amazon.com/dp/B07DWB59CQ) [3**Carlyle Melatonin 10mg | 2 fl oz Liquid Drops | Berry Flavor**Carlyle**$6.96**4.3★2,694 rev](https://www.amazon.com/dp/B08LBSMX9K) [4**Vitamatic 2-Pack Melatonin 20mg Liquid Drops - 2 fl oz (59 ml) Each - Natural Berry Flavor - Non-GMO Vegetarian Supplement for Adults**Vitamatic**$19.34**4.4★1,257 rev](https://www.amazon.com/dp/B0BJW3S3ZJ) [5**Zarbees Kids Melatonin Sleep Supplement Liquid 1mg Melatonin 1 fl oz**Zarbee's**$7.25**4.7★19,177 rev](https://www.amazon.com/dp/B079L7F99T)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Clean Nutra Melatonin 10mg Drops Magnesium Vitamin B6 L-Theanine Valerian Hibiscus Lemon Balm Supplement Liquid Sugar-Free Vegan Non-GMO Natural Sleep Support Aid Lemon Tea Flavor 120mL Formula**Clean Nutraceuticals**$22.34**81 rev1y ago](https://www.amazon.com/dp/B0FK737C5W) [**Zarbees Kids Sleep Supplement Liquid with 1mg Melatonin; Drug-Free & Effective; Easy to Take Natural Berry Flavor for Children Ages 3 and Up; 1 Fl Oz Bottles Pack of 2**Zarbee's**$14.82**797 rev2y ago](https://www.amazon.com/dp/B0CJT7CKL5) [**FWS Liquid Melatonin Drops for Adults and Kids - 99% Pure Bioactive Melatonin - Organic Non-GMO Vegan - Minimal Ingredients - Easy Adjustable Dosing - Helps to Promote Restful Sleep - 2oz**FIREWATERSTAR HEALTH SUPPLEMENTS**$19.00**228 rev2y ago](https://www.amazon.com/dp/B0CFV5QFBX) [**Piping Rock Kids Melatonin Liquid 1 fl oz | 1mg | Pack of 3 Bottles**Piping Rock**$10.02**445 rev3y ago](https://www.amazon.com/dp/B0C4C9MT12) [**Vitamatic Melatonin 20mg Liquid Drops 2 Fluid Ounce (59ml) Natural Berry Flavor for Adults Non-GMO Vegetarian Supplement**Vitamatic**$11.58**1,257 rev3y ago](https://www.amazon.com/dp/B0BJVXY34F)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Clean Nutra Melatonin 10mg Drops Magnesium Vitamin B6 L-Theanine Valerian Hibiscus Lemon Balm Supplement Liquid Sugar-Free Vegan Non-GMO Natural Sleep Support Aid Lemon Tea Flavor 120mL Formula**Clean Nutraceuticals**$22.34**4.1★**▲ 123%**](https://www.amazon.com/dp/B0FK737C5W) [**Vitamatic Melatonin 20mg Liquid Drops 2 Fluid Ounce (59ml) Natural Berry Flavor for Adults Non-GMO Vegetarian Supplement**Vitamatic**$11.58**4.4★**▲ 56%**](https://www.amazon.com/dp/B0BJVXY34F) [**365 by Whole Foods Market Liquid Melatonin 2 fl oz**365 by Whole Foods Market**$7.17**4.6★**▲ 44%**](https://www.amazon.com/dp/B074H5Y447) [**Amazon Basics Night Time Sleep-Aid Liquid for Adults Diphenhydramine HCl 50 mg Mixed Berry Flavor 12 fl oz (Pack of 1) (Previously Care)**Amazon Basics**$5.68**4.5★**▲ 27%**](https://www.amazon.com/dp/B07XY9SWHP) [**NOW Foods Supplements Liquid Melatonin 3 mg Per Serving Fast Absorbtion and Great Taste 2-Ounces**NOW Foods**$5.89**4.4★**▲ 25%**](https://www.amazon.com/dp/B002MFOO3A)
**~~View all trending →~~**
## **What reviews say buyers love and hate about liquid melatonin**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**30%
*“Sleep Like A Baby”*
**Efficiency**11%
*“Effective”*
**Quality-Overall**9%
*“Just as good as name brand”*
**Taste-Overall**8%
*“Great taste”*
**Value For Money**6%
*“Great and affordable”*
**Advertised Vs Actual Product**5%
*“Does work as it advertised”*
**Dosage**4%
*“Easy to adjust the dose”*
**Ease Of Use**3%
*“Easy to use”*
**Flavor**3%
*“Good flavor, no weird aftertaste”*
**Strength**1%
*“Effective”*
### **What buyers complain about **
**Sleep Quality**23%
*“Didnt help or work with sleep”*
**Taste-Overall**16%
*“taste gross”*
**Functionality-Overall**12%
*“Did not work”*
**Dosage**6%
*“Requires a lot of the liquid to take even a half of the dose”*
**Flavor**4%
*“I hate berry flavors”*
**Quality-Overall**3%
*“Expected better quality”*
**Ease Of Use**3%
*“Hard to open and measure”*
**Value For Money**2%
*“Price isnt that good for something that didnt work very well”*
**Smell**2%
*“Does NOT smell like lavender”*
**Dilute/Watery**2%
*“Ridiculously diluted”*
### **Top return reasons **
**Value For Money**100%
## **Common liquid melatonin questions**
- **Is liquid melatonin profitable to sell on Amazon United States?**
- The niche generates $512K/yr across 20 tracked products. 90-day search growth is -4.7%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the liquid melatonin niche?**
- 16 brands and 598 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in liquid melatonin?**
- Top complaints mined from reviews: Sleep Quality, Taste-Overall, Functionality-Overall. The return rate is 0.0%.
- **When does demand for liquid melatonin peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the liquid melatonin niche?**
- Listings span $5.68–$35.44; the average listing price is $12.19 (sweet spot $15–$100). The average incumbent carries 3,198 reviews — the moat a new listing must climb.
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