Is magnesium glycinate powder profitable to sell on Amazon United States?

The niche generates $2.2M/yr across 36 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is -6.4%. Flapen's verdict: Worth a look (69/100).

How competitive is the magnesium glycinate powder niche?

26 brands and 605 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 56% of demand.

What do buyers complain about in magnesium glycinate powder?

Top complaints mined from reviews: Taste-Overall, Magnesium, Sweetness. The return rate is 0.0%.

When does demand for magnesium glycinate powder peak?

Demand peaks in Jan; the busiest month runs 2.0× the quietest.

What does it cost to enter the magnesium glycinate powder niche?

Listings span $9.92–$50.86; the average listing price is $24.81 (sweet spot $15–$100). The average incumbent carries 5,510 reviews — the moat a new listing must climb.

Magnesium Glycinate Powder

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Market size

Incredible$2.2M

$2.2M/yr · 1.4M searches

Avg price

Incredible$24.81

avg listing price — sweet spot $15–$100

Price range

Great$9.92–$50.86

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

Brand share

Great56%

top-5 brand share — no brand owns this niche

Competition

Great38%

top-5 click share — an open shelf

Conversion

Good6.2%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Bad5,510.08

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-6.4%

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

Is magnesium glycinate powder profitable on Amazon?

According to Flapen's Amazon United States niche tracking, magnesium glycinate powder is a $2.2M/yr Amazon United States market (1.4M searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Jan. Verdict: Worth a look — 69/100.

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

magnesium glycinate powder market size & sales

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

Units sold / yr: 80K–100K; avg 2,000–2,500/product
Revenue / yr: $2.0M–$2.5M; units × avg price
Conversion rate: 6.2%
Avg BSR: #454
Page quality: 0%
Prime: 100%
Sponsored: 94%
Out of stock: 2.0%
Avg brand age: 48 months
Avg seller age: 147 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

26 rising

Sellers

605

Top-5 brand share

56%

Top 20: 93%

Top-5 click share

38%

Top 20: 79%

Open market

40%

Nutricost27%
Natural Vitality11%
Micro Ingredients9%
Pure Encapsulations6%
THORNE5%
Trace Minerals4%

magnesium glycinate powder demand & seasonality

Weekly Amazon search volume, last 104 weeks — -6.4% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 2.0×

Open Trend

Top magnesium glycinate powder search terms shoppers use

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

magnesium glycinate powder635K/yr -15.5%5.5% conv.
magnesium powder368K/yr -5.9%3.8% conv.
nutricost magnesium glycinate69K/yr +20.1%9.4% conv.
magnesium powder for sleep77K/yr -12.5%3.6% conv.
magnesio en polvo39K/yr +22.4%2.0% conv.
magnesium glycinate powder unflavored24K/yr +35.1%5.3% conv.
magnesium powder supplement29K/yr +1.9%2.8% conv.
magnesium glycinate drink20K/yr -3.3%2.3% conv.
magnesium glycinate powder for sleep28K/yr +9.3%4.1% conv.
glicinato de magnesio en polvo17K/yr -7.0%2.6% conv.

All search terms

Top magnesium glycinate powder 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Nutricost Magnesium Glycinate Powder (250 Grams) Unflavored

Nutricost$19.504.4★1,553 rev

Natural Vitality Calm Magnesium Powder

Natural Vitality$22.294.6★42,432 rev

Magnesium Powder 420mg Per Serving 12oz (56 Servings) | Sugar Free Lemonade Flavor | Magnesium Glycinate Powder Supplement with Elemental Form | Chelated Minerals | Non-GMO Vegan

Micro Ingredients$17.364.7★114 rev

Trace Minerals Magnesium Glycinate Powder Mixed Berry Lemonade

Trace Minerals$20.014.6★443 rev

Magnesium Glycinate Powder + L-Theanine | 60 Servings | 300 mg per Scoop High Absorption Chelated Magnesium Powder for Sleep - Natural Mixed Berry Flavor No Sugar Support Restful Sleep & Relaxation

Nuven Naturals$26.104.5★427 rev

Newest

by launch date

Magnesium Bisglycinate Powder Chelated Supplement 60 Servings 237g

BioSchwartz$19.7915,881 rev

5mo ago

Magnesium Powder 420mg Per Serving 12oz (56 Servings) | Sugar Free Lemonade Flavor | Magnesium Glycinate Powder Supplement with Elemental Form | Chelated Minerals | Non-GMO Vegan

Micro Ingredients$17.36114 rev

8mo ago

ZEBORA Magnesium Powder for Sleep Muscle & Brain Health 10.58oz (300g)

ZEBORA$17.76167 rev

10mo ago

Magnesium Glycinate Powder 400MG Sleep & Relaxation Support Sugar-Free

Nobi Nutrition$19.406,787 rev

11mo ago

Natural Vitality MaxCalm Magnesium Glycinate Powder | Relaxing Drink Mix

Natural Vitality$19.00135 rev

1y ago

What reviews say buyers love and hate about magnesium glycinate powder

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

What buyers love

Sleep Quality16%

“More deep sleep”

Quality-Overall13%

“Amazing quality”

Magnesium12%

“Best magnesium ever”

Taste-Overall11%

“Doesn't taste fake at all”

Flavor4%

“the flavor is mild”

Value For Money3%

“low price”

Solubility3%

“Easy to mix”

Efficiency3%

“it gets the job done”

Advertised Vs Actual Product3%

“As advertised”

Soothing Effect2%

“it relaxes me deeply”

What buyers complain about

Taste-Overall16%

“Awful tasting”

Magnesium7%

“Too much magnesium”

Sweetness5%

“Taste is way too sweet”

Sleep Quality5%

“Worst sleep in my life”

Flavor4%

“The flavor is a little unusual”

Value For Money4%

“A little pricey”

Dosage3%

“Those supplements are low-dose”

Solubility3%

“Does not mix well”

Ingredients-Overall3%

“And the ingredients are different”

Acid Regulator/Stomach Ache Relief2%

“Bothered my stomach”

Top return reasons

Taste-Overall20%

Functionality-Overall11%

Magnesium10%

Flavor8%

Value For Money7%

Sleep Quality5%

Advertised Vs Actual Product5%

Acid Regulator/Stomach Ache Relief5%

Leak-Proof4%

Ingredients-Overall4%

Common magnesium glycinate powder questions

Is magnesium glycinate powder profitable to sell on Amazon United States?: The niche generates $2.2M/yr across 36 tracked products. 6 of 8 products launched in the last 360 days are still selling. 90-day search growth is -6.4%. Flapen's verdict: Worth a look (69/100).
How competitive is the magnesium glycinate powder niche?: 26 brands and 605 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 56% of demand.
What do buyers complain about in magnesium glycinate powder?: Top complaints mined from reviews: Taste-Overall, Magnesium, Sweetness. The return rate is 0.0%.
When does demand for magnesium glycinate powder peak?: Demand peaks in Jan; the busiest month runs 2.0× the quietest.
What does it cost to enter the magnesium glycinate powder niche?: Listings span $9.92–$50.86; the average listing price is $24.81 (sweet spot $15–$100). The average incumbent carries 5,510 reviews — the moat a new listing must climb.