Is magnesium l-threonate liquid profitable to sell on Amazon United States?

The niche generates $118K/yr across 18 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is -31.8%. Flapen's verdict: Worth a look (52/100).

How competitive is the magnesium l-threonate liquid niche?

17 brands and 560 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 63% of demand.

What do buyers complain about in magnesium l-threonate liquid?

Top complaints mined from reviews: Taste-Overall, Dosage, Sleep Quality. The return rate is 0.0%.

When does demand for magnesium l-threonate liquid peak?

Demand peaks in Jan–Dec; the busiest month runs 2.1× the quietest.

What does it cost to enter the magnesium l-threonate liquid niche?

Listings span $17.06–$40.65; the average listing price is $24.99 (sweet spot $15–$100). The average incumbent carries 2,853 reviews — the moat a new listing must climb.

Magnesium L-threonate Liquid

Worth a look

Shows low returns (0.0%), but soft demand (-31.8% this quarter) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$24.99

avg listing price — sweet spot $15–$100

Price range

Incredible$17.06–$40.65

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

Conversion

Great7.6%

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

Brand share

Good63%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Okay63%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay2,852.56

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$118K

$118K/yr · 62K searches

Growth

Bad-31.8%

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

Signals Low Review Barrier Out of Stock

Is magnesium l-threonate liquid profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium l-threonate liquid is a $118K/yr Amazon United States market (62K searches/yr). The top 5 brands hold 63% of demand. Demand peaks in Jan–Dec. Verdict: Worth a look — 52/100.

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

magnesium l-threonate liquid market size & sales

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

Units sold / yr: 3K–4K; avg 0–100/product
Revenue / yr: $75K–$100K; units × avg price
Conversion rate: 7.6%
Avg BSR: #1,137
Page quality: 0%
Prime: 89%
Sponsored: 100%
Out of stock: 15.6%
Avg brand age: 40 months
Avg seller age: 162 days

Competition: brands, sellers & click share

The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

560

Top-5 brand share

63%

Top 20: 100%

Top-5 click share

63%

Top 20: 100%

Open market

32%

Itiban27%
SustainWell11%
HERBALICIOUS11%
WELVIUM7%
Hodiary7%
MARYRUTH'S5%

magnesium l-threonate liquid demand & seasonality

Weekly Amazon search volume, last 82 weeks — -31.8% search growth over the last 90 days.

Peak months: Jan, Dec · busiest ÷ quietest = 2.1×

Open Trend

Top magnesium l-threonate liquid search terms shoppers use

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

magnesium l-threonate liquid24K/yr -28.3%2.2% conv.
magnesium l-threonate liquid drops8K/yr -18.8%4.1% conv.
magnesium threonate liquid9K/yr -36.0%4.3% conv.
magnesium l-threonate drops6K/yr -39.1%4.7% conv.
liquid magnesium l-threonate5K/yr -36.1%4.2% conv.
magnesium l threonate liquid5K/yr -41.8%4.9% conv.
magnesium threonate drops4K/yr -42.4%3.6% conv.

All search terms

Top magnesium l-threonate liquid 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 18 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Itiban Magnesium L-Threonate Liquid Drops Restore Health Magnesium Levels Support Cardiovascular Promote Restful Sleep Relax Pineapple Flavor 60ml

Itiban$17.064.5★50 rev

Magnesium L-Threonate Liquid Drops Magnesium L Threonate Supplement 1500mg High Absorption Brain Supplement for Memory Focus Sleep Sugar Free Vegan 4.08 Fl Oz(2 Pack) GMP Certified for Kids and Adults

SustainWell$36.104.9★20 rev

HERBALICIOUS Magnesium Complex Liquid with Vitamin D3 & B6 High Absorption Citrate Glycinate & L-Threonate Supports Energy Mood Relaxation Bone Health & Immunity 4 oz Liquid Drops

HERBALICIOUS$28.944.3★39 rev

WELVIUM Triple Magnesium Complex Liquid Drops - Magnesium Glycinate Supplement with L-Threonate Taurate - Ashwagandha L-Theanine 5-HTP Vitamins B6 B12 Bromelain Inositol for Mineral Balance

WELVIUM$17.774.3★154 rev

Hodiary Magnesium L-Threonate Liquid Drops 2 fl oz

Hodiary$19.174.3★35 rev

Newest

by launch date

Magnesium L-Threonate Liquid Drops 1200mg Magnesium L-Threonate from Marine Algae Brain Calm & Gut Health Support with Inulin L-Tryptophan & Passionflower Lemon Flavor 60ml / 2 fl oz

Safsum$25.004 rev

1mo ago

Magnesium L-Threonate Liquid Drops 4.0 Fl Oz

Daioloes$21.087 rev

4mo ago

Magnesium L-Threonate Liquid Magnesium Threonate with Apigenin for Sleep

Generic$19.993 rev

6mo ago

SustainWell$36.1020 rev

6mo ago

Vita Guard Magnesium Glycinate Liquid Drops 500mg Liquid Magnesium Supplement with L-Theanine 200mg Sleep Calm Stress Relief Muscle & Nerve Health Gluten Free No Sugar Vegan 2 Fl Oz

Vita Guard$19.8334 rev

8mo ago

What reviews say buyers love and hate about magnesium l-threonate liquid

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

What buyers love

Sleep Quality22%

“Sleep like a baby”

Quality-Overall14%

“Excellent product”

Magnesium12%

“Best magnesium in my honest opinion”

Vitamin5%

“Great vitamin”

Value For Money4%

“Worth it”

Taste-Overall4%

“tastes great with a refreshing”

Advertised Vs Actual Product4%

“Works as it should”

Efficiency4%

“Works well”

Focus Enhancement3%

“Improved focus and memory”

Soothing Effect2%

“It provides a noticeable calming effect”

What buyers complain about

Taste-Overall11%

“Taste is gross”

Dosage8%

“Unclear dosage instructions”

Sleep Quality8%

“Makes me sleepy”

Value For Money6%

“It's expensive”

Magnesium5%

“Incorrectly labeled Magnesium %DV”

Side Effects5%

“Horrible side effect”

Functionality-Overall3%

“Not effective”

Quality-Overall3%

“Poor Quality Control”

Size-Overall3%

“Capsules Are Too Large”

Certifications3%

“Not NSF Certified”

Top return reasons

Functionality-Overall29%

Taste-Overall13%

Value For Money5%

Magnesium5%

Ethical Trade/Fair Trade5%

Sleep Quality5%

Fever Relief5%

Heart Health5%

Cough Relief5%

Product Condition5%

Common magnesium l-threonate liquid questions

Is magnesium l-threonate liquid profitable to sell on Amazon United States?: The niche generates $118K/yr across 18 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is -31.8%. Flapen's verdict: Worth a look (52/100).
How competitive is the magnesium l-threonate liquid niche?: 17 brands and 560 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 63% of demand.
What do buyers complain about in magnesium l-threonate liquid?: Top complaints mined from reviews: Taste-Overall, Dosage, Sleep Quality. The return rate is 0.0%.
When does demand for magnesium l-threonate liquid peak?: Demand peaks in Jan–Dec; the busiest month runs 2.1× the quietest.
What does it cost to enter the magnesium l-threonate liquid niche?: Listings span $17.06–$40.65; the average listing price is $24.99 (sweet spot $15–$100). The average incumbent carries 2,853 reviews — the moat a new listing must climb.