Liquid Melatonin Kids
Skip itA concentrated shelf (top 5 take 75% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.3%search→purchase rate — share of searches ending in a sale
Price range
Good$6.45–$27.76cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay$11.66avg listing price — sweet spot $15–$100
Market size
Okay$243K$243K/yr · 169K searches
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Bad5,135.58avg incumbent reviews — the moat a new listing must climb
Growth
Bad-8.1%90-day search growth — must beat 0% to launch
Competition
Bad75%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
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.Peak months: Aug, Sep, Oct · busiest ÷ quietest = 1.8×
Top liquid melatonin kids search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- liquid melatonin kids45K/yr
- kids melatonin liquid29K/yr
- melatonin drops for kids16K/yr
- melatonin kids liquid16K/yr
- melatonin liquid for kids20K/yr
- kids liquid melatonin14K/yr
- kids sleep syrup4K/yr
- liquid melatonin for kids5K/yr
- childrens melatonin liquid5K/yr
- melatonin for kids liquid4K/yr
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.
All 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Zarbees Kids Melatonin Sleep Supplement Liquid 1mg Melatonin 1 fl oz
Zarbee's$7.254.7★19,177 rev
Carlyle Kids Melatonin Liquid | 1 fl oz | Two Pack | Fruit Flavor
Carlyle$8.174.5★2,020 rev
Mommys Bliss Kids Sleep Support Liquid w/Melatonin Grape Flavor 4 Oz
Mommy's Bliss$8.304.6★5,969 rev
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$14.824.8★797 rev
Piping Rock Kids Melatonin Liquid 1 fl oz | 1mg | Pack of 3 Bottles
Piping Rock$10.024.6★445 rev
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$10.0745 rev
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$6.93876 rev
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$9.32909 rev
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$14.82797 rev
Piping Rock Kids Melatonin Liquid 1 fl oz | 1mg | Pack of 3 Bottles
Piping Rock$10.02445 rev
Trending
90-day click momentumLiquid 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$10.074.5★
SleepBerry Liquid Melatonin for Kids - Natural Sleep Aid with Elderberry and Vitamin D - Boosts Immune System While They Sleep (1 Fl oz)
JoySpring$20.864.4★
Natrol Kids Fast Dissolve Melatonin 1 mg Sleep Aid Strawberry 40 Tablets
Natrol$10.004.7★
Carlyle Kids Melatonin Liquid | 1 fl oz | Two Pack | Fruit Flavor
Carlyle$8.174.5★
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$6.934.6★
What reviews say buyers love and hate about liquid melatonin kids
What buyers praise and complain about, mined from review topics.What buyers love
“Helps my child sleep better”
“Effective”
“tastes pretty good”
“so no complaints”
“Worth every penny”
“Very easy to administer and use”
“It's berry flavored”
“perfect dose”
“Works as expected”
“It gives the same calming”
What buyers complain about
“Didn't help sleep at all”
“Didn't work”
“Disgusting taste”
“The dropper is very hard to get the dosage correct”
“Mold smell”
“And the quality control is poor as well now”
“Nooo do not give to your child”
“No measurements”
“Hard to open the bottle”
“the flavor was not ideal”
Top return reasons
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.