Is magnesium drink profitable to sell on Amazon United States?

The niche generates $55K/yr across 13 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -39.3%. Flapen's verdict: Skip it (44/100).

How competitive is the magnesium drink niche?

11 brands and 17 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in magnesium drink?

Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Taste-Overall. The return rate is 0.2%.

When does demand for magnesium drink peak?

Demand peaks in Aug–Dec; the busiest month runs 12.4× the quietest.

What does it cost to enter the magnesium drink niche?

Listings span $8.46–$22.56; the average listing price is $16.65 (sweet spot $15–$100). The average incumbent carries 267 reviews — the moat a new listing must climb.

Magnesium Drink

Skip it

Soft demand (-39.3% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Review moat

Great267.38

avg incumbent reviews — the moat a new listing must climb

Avg price

Great$16.65

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Conversion

Good5.2%

search→purchase rate — share of searches ending in a sale

Price range

Good$8.46–$22.56

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Competition

Bad77%

top-5 click share — a locked-up shelf

Market size

Bad$55K

$55K/yr · 63K searches

Growth

Bad-39.3%

90-day search growth — must beat 0% to launch

Signals Out of Stock

Is magnesium drink profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium drink is a $55K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in Aug–Dec. Verdict: Skip it — 44/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

magnesium drink market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 3K–4K; avg 250–500/product
Revenue / yr: $50K–$67K; units × avg price
Conversion rate: 5.2%
Avg BSR: #1,580
Page quality: 0%
Prime: 100%
Sponsored: 77%
Out of stock: 3.5%
Avg brand age: 30 months
Avg seller age: 144 days

Competition: brands, sellers & click share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 rising

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

15%

Vita PLynxera40%
JIANKYTZ20%
Lukaree11%
AMENQ hHEALTH6%
NIFEISHI5%
CNCHEF4%
Open — no brand owns it (5 brands, 15%)

magnesium drink demand & seasonality

Weekly Amazon search volume, last 87 weeks — -39.3% search growth over the last 90 days.

Peak months: Aug, Dec · busiest ÷ quietest = 12.4×

Open Trend

Top magnesium drink search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

cortisol drops22K/yr -20.4%3.8% conv.
cortisol wellness liquid drops11K/yr -36.9%4.8% conv.
cortisol drops for women6K/yr -37.5%5.3% conv.
cortisol liquid drops5K/yr +0.2%3.3% conv.
cortisol health liquid drops4K/yr -34.7%7.4% conv.
cortisol drops for weight loss4K/yr -22.1%3.6% conv.
zen drops for cortisol3K/yr -76.5%1.9% conv.
cortisol liquid supplements for women5K/yr -71.8%3.8% conv.
hormone balancing drops3K/yr -71.5%0.0% conv.

All search terms

Top magnesium drink 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Vita PLynxera Cortisol Supplement Liquid Drops 17-in-1 Cortisol Detox w. Magnesium Glycinate 400mg Ashwagandha L-Theanine Phosphatidylserine Hormone Balanced for Women Mood Focus Sleep Support

Vita PLynxera$21.244.3★1,138 rev

(2 Pack) Cortisol Liquid Drops for Women - Balanced Cortisol Hormone Balance Support Cortisol Supplements for Women with Magnesium Complex Rhodiola Rosea Ashwagandha Sugar-Free 1 Fl Oz

JIANKYTZ$20.504.4★333 rev

Cortisol Supplements for Women Mood Calm Stress Balance Hormone Harmony

Lukaree$20.444.1★421 rev

NIFEISHI Cortisol Reducer & Manager Liquid Drops for Women & Men | Cortisol Supplements with Ashwagandha & Magnesium | 9-in-1 Stress & Mood Support Blueberry Flavor-2.02 floz

NIFEISHI$8.464.2★130 rev

Cortisol Supplement Liquid Drops Hormone Balance for Women Men Cortisol Detox with Magnesium Glycinate L-Theanine Rhodiola Rosea Ashwagandha Phosphatidylserine Mood Focus Sleep Support 2 Fl Oz

CNCHEF$11.004.2★102 rev

Newest

by launch date

16-IN-1 Liposomal Cortisol Supplements Drops for Women & Men Melatonin-Free

Femmetra$20.6326 rev

2mo ago

25-in-1 Liposomal cortisol drops for women Magnesium Glycinate 500mg 60ML

Ossual$20.0619 rev

4mo ago

Suiyilary Cortisol Liquid Drops Support Supplements for Men and Women Cortisol Detox Hormone Balance with Magnesium Ashwagandha L-theanine for Mood Support Lemon Flavor 60ml (60ml)

Suiyilary$8.93102 rev

8mo ago

NIFEISHI Cortisol Reducer & Manager Liquid Drops for Women & Men | Cortisol Supplements with Ashwagandha & Magnesium | 9-in-1 Stress & Mood Support Blueberry Flavor-2.02 floz

NIFEISHI$8.46130 rev

10mo ago

Cortisol Reducer for Women & Men with Magnesium Glycinate Ashwagandha L-Theanine - Supports Stress Relief Sleep & Heart Health Nerves Muscles - 2 Fl Oz

WellBloom$22.53224 rev

11mo ago

What reviews say buyers love and hate about magnesium drink

What buyers praise and complain about, mined from review topics.

What buyers love

Taste-Overall14%

“No weird aftertaste or anything like that”

Sleep Quality14%

“Helps me sleep”

Stress/Anxiety12%

“Helps reduce stress”

Ease Of Use7%

“Easy to Take”

Flavor7%

“The flavor is good”

Quality-Overall5%

“What ultimately stands out to me is the importance of quality control”

Soothing Effect3%

“Helps me to calm down”

Value For Money3%

“The price is very reasonable”

Focus Enhancement3%

“This combination has helped with focus”

Magnesium3%

“The blend of Ashwagandha and magnesium really helps me stay calm, sleep better, and feel more relaxed throughout my busy, stressful work days”

What buyers complain about

Sleep Quality14%

“also didnt help at all with sleep”

Functionality-Overall10%

“Didn't work for me”

Taste-Overall10%

“Undrinkable - very strong chemical taste”

Value For Money6%

“Waste of money”

Side Effects4%

“Did nothing for me except for making me feel ill”

Dosage4%

“Didnt do a thing after four bottles waste of money”

Stress/Anxiety3%

“I don't see a significant difference in cortisol support, stress management, or any calming properties”

Advertised Vs Actual Product2%

“For me, this doesn't work as advertised”

Pain Relief-Overall2%

“Worst Pain”

Ingredients-Overall2%

“ruled out a bunch of options with weird fillers or sketchy ingredient lists”

Top return reasons

Leak-Proof29%

Functionality-Overall21%

Taste-Overall15%

Advertised Vs Actual Product6%

Durability3%

Sour3%

Thickness3%

Sleep Quality3%

Ingredients-Overall3%

Acid Regulator/Stomach Ache Relief3%

Common magnesium drink questions

Is magnesium drink profitable to sell on Amazon United States?: The niche generates $55K/yr across 13 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -39.3%. Flapen's verdict: Skip it (44/100).
How competitive is the magnesium drink niche?: 11 brands and 17 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in magnesium drink?: Top complaints mined from reviews: Sleep Quality, Functionality-Overall, Taste-Overall. The return rate is 0.2%.
When does demand for magnesium drink peak?: Demand peaks in Aug–Dec; the busiest month runs 12.4× the quietest.
What does it cost to enter the magnesium drink niche?: Listings span $8.46–$22.56; the average listing price is $16.65 (sweet spot $15–$100). The average incumbent carries 267 reviews — the moat a new listing must climb.