---
title: "Liquid Melatonin Kids — $20K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/health-household/liquid-melatonin-kids"
last_updated: "2026-08-12T16:14:14.237Z"
locale: en
meta:
description: "Amazon product research for liquid melatonin kids: $20K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for liquid melatonin kids: $20K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Liquid Melatonin Kids — $20K/mo Amazon US Product Research"
---
# **Liquid Melatonin Kids**
**Skip it**
A concentrated shelf (top 5 take 75% of clicks) — this niche doesn't clear our bar today.
Market size 45Growth 21Conversion 95Competition 20Returns 100Price range 60Avg price 47Brand share 35Review moat 24Quality gap 35
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****12.3%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$6.45–$27.76**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$11.66**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$243K**
$243K/yr · 169K searches
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****5,135.58**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-8.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
## **Is liquid melatonin kids profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, liquid melatonin kids is a $243K/yr Amazon United States market (169K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Skip it — 46/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **liquid melatonin kids market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **20K–25K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$233K–$292K**
- units × avg price
- **Conversion rate**
- **12.3%**
- **Avg BSR**
- **#138**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **65 months**
- **Avg seller age**
- **168 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▼falling
**Sellers**
**41**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**9%**
- Zarbee's37% - Carlyle17% - Mommy's Bliss13% - Hyland's8% - Piping Rock8% - JoySpring7% - Open — no brand owns it (2 brands, 9%)
## **liquid melatonin kids demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.1% search growth over the last 90 days.
6K4KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep, Oct · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/health-household/liquid-melatonin-kids/trend)
## **Top liquid melatonin kids search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **liquid melatonin kids**45K/yr-4.8%11.1% conv. - **kids melatonin liquid**29K/yr-4.9%14.5% conv. - **melatonin drops for kids**16K/yr+6.0%9.2% conv. - **melatonin kids liquid**16K/yr-1.9%11.9% conv. - **melatonin liquid for kids**20K/yr-27.0%12.1% conv. - **kids liquid melatonin**14K/yr-11.5%12.3% conv. - **kids sleep syrup**4K/yr+106.1%0.1% conv. - **liquid melatonin for kids**5K/yr+3.4%11.7% conv. - **childrens melatonin liquid**5K/yr-19.3%14.2% conv. - **melatonin for kids liquid**4K/yr-6.7%8.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/liquid-melatonin-kids/search-terms)
## **Top liquid melatonin kids 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%$24K20%$49K30%$73K40%$97K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**Carlyle Kids Melatonin Liquid | 1 fl oz | Two Pack | Fruit Flavor**Carlyle**$8.17**4.5★2,020 rev](https://www.amazon.com/dp/B09TWTGMV2) [3**Mommys Bliss Kids Sleep Support Liquid w/Melatonin Grape Flavor 4 Oz**Mommy's Bliss**$8.30**4.6★5,969 rev](https://www.amazon.com/dp/B08644CBKN) [4**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**4.8★797 rev](https://www.amazon.com/dp/B0CJT7CKL5) [5**Piping Rock Kids Melatonin Liquid 1 fl oz | 1mg | Pack of 3 Bottles**Piping Rock**$10.02**4.6★445 rev](https://www.amazon.com/dp/B0C4C9MT12)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Liquid Melatonin Kids Sleep Aid - Sleep Magic Kids Melatonin Liquid 3mg Berry Drops D3 L Theanine - Childrens Sleeping Aids Natural Calm L-Theanine Supplement Toddler Travel Essentials 2 Fl Oz**DR. BO**$10.07**45 rev3mo ago](https://www.amazon.com/dp/B0FQ4QYWVG) [**Hylands Kids Sleep Calm & Immunity with Melatonin Sugar-Free Sleep Aid Liquid with Magnesium Vitamin D Zinc & Elderberry Promotes Sleep & Supports Immune Health Ages 2+ Grape Flavor 4 Fl. Oz.**Hyland's**$6.93**876 rev2y ago](https://www.amazon.com/dp/B0D4CF16R4) [**Hylands Kids Melatonin-Free Organic Sleep Calm & Immunity Liquid Sugar-Free with Magnesium Vitamin D Zinc & Elderberry Promotes Sleep & Supports Immune Health Ages 2+ Grape Flavor 4 Fl. Oz.**Hyland's**$9.32**909 rev2y ago](https://www.amazon.com/dp/B0D4D6FLX6) [**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) [**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)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Liquid Melatonin Kids Sleep Aid - Sleep Magic Kids Melatonin Liquid 3mg Berry Drops D3 L Theanine - Childrens Sleeping Aids Natural Calm L-Theanine Supplement Toddler Travel Essentials 2 Fl Oz**DR. BO**$10.07**4.5★**▲ 218%**](https://www.amazon.com/dp/B0FQ4QYWVG) [**SleepBerry Liquid Melatonin for Kids - Natural Sleep Aid with Elderberry and Vitamin D - Boosts Immune System While They Sleep (1 Fl oz)**JoySpring**$20.86**4.4★**▲ 62%**](https://www.amazon.com/dp/B08158MT7G) [**Natrol Kids Fast Dissolve Melatonin 1 mg Sleep Aid Strawberry 40 Tablets**Natrol**$10.00**4.7★**▲ 30%**](https://www.amazon.com/dp/B07QY24F8H) [**Carlyle Kids Melatonin Liquid | 1 fl oz | Two Pack | Fruit Flavor**Carlyle**$8.17**4.5★**▲ 17%**](https://www.amazon.com/dp/B09TWTGMV2) [**Hylands Kids Sleep Calm & Immunity with Melatonin Sugar-Free Sleep Aid Liquid with Magnesium Vitamin D Zinc & Elderberry Promotes Sleep & Supports Immune Health Ages 2+ Grape Flavor 4 Fl. Oz.**Hyland's**$6.93**4.6★**▲ 10%**](https://www.amazon.com/dp/B0D4CF16R4)
**~~View all trending →~~**
## **What reviews say buyers love and hate about liquid melatonin kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Sleep Quality**32%
*“Helps my child sleep better”*
**Efficiency**10%
*“Effective”*
**Taste-Overall**8%
*“tastes pretty good”*
**Quality-Overall**7%
*“so no complaints”*
**Value For Money**5%
*“Worth every penny”*
**Ease Of Use**4%
*“Very easy to administer and use”*
**Flavor**4%
*“It's berry flavored”*
**Dosage**4%
*“perfect dose”*
**Advertised Vs Actual Product**2%
*“Works as expected”*
**Soothing Effect**2%
*“It gives the same calming”*
### **What buyers complain about **
**Sleep Quality**23%
*“Didn't help sleep at all”*
**Functionality-Overall**13%
*“Didn't work”*
**Taste-Overall**13%
*“Disgusting taste”*
**Dosage**5%
*“The dropper is very hard to get the dosage correct”*
**Smell**3%
*“Mold smell”*
**Quality-Overall**3%
*“And the quality control is poor as well now”*
**Age Suitability**3%
*“Nooo do not give to your child”*
**Measurement/Reading Accuracy**2%
*“No measurements”*
**Ease Of Use**2%
*“Hard to open the bottle”*
**Flavor**2%
*“the flavor was not ideal”*
### **Top return reasons **
**Leak-Proof**33%
**Value For Money**33%
**Taste-Overall**33%
## **Common liquid melatonin kids questions**
- **Is liquid melatonin kids profitable to sell on Amazon United States?**
- The niche generates $243K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -8.1%. Flapen's verdict: Skip it (46/100).
- **How competitive is the liquid melatonin kids niche?**
- 8 brands and 41 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in liquid melatonin kids?**
- Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Taste-Overall. The return rate is 0.0%.
- **When does demand for liquid melatonin kids peak?**
- Demand peaks in Aug–Sep–Oct; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the liquid melatonin kids niche?**
- Listings span $6.45–$27.76; the average listing price is $11.66 (sweet spot $15–$100). The average incumbent carries 5,136 reviews — the moat a new listing must climb.
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