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magnesium glycinate

Skip it

A small market ($53K/yr) — this niche doesn't clear our bar today.

Market size 13Growth 37Conversion 51Competition 34Returns 100Price range 88Avg price 95Brand share 56Review moat 20Quality gap 23

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Incredible$27.58

avg listing price — sweet spot $15–$100

Price range

Great$10.96–$57.23

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

Brand share

Good71%

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

Conversion

Good4.1%

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

Growth

Okay+9.6%

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

Competition

Okay64%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad14,001.84

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$53K

$53K/yr · 46K searches

According to Flapen's Amazon Singapore niche tracking, magnesium glycinate is a $53K/yr Amazon Singapore market (46K searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 46/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

magnesium glycinate market data

Units sold / yr
3K–4K
avg 100–250/product
Revenue / yr
$83K–$110K
units × avg price
Conversion rate
4.1%
Avg BSR
#69
Page quality
0%
Prime
74%
Sponsored
37%
Out of stock
2.6%
Avg brand age
82 months
Avg seller age
0 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 falling

Sellers

39

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

24%

  • Now Foods36%
  • Doctor's Best18%
  • Nature Made6%
  • PH PROWISE Healthcare6%
  • Swanson5%
  • NatureBell4%

Demand

Weekly Amazon search volume, last 47 weeks — +9.6% search growth over the last 90 days.
2K1KSpike '25Spike '26Aug '25Oct '25Dec '25Jan '26Mar '26May '26Jun '26

Top magnesium glycinate products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$5K20%$11K30%$16K40%$21K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 19 tracked products in this niche — three views at once, no toggling.

What buyers say about magnesium glycinate

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

What buyers love

Sleep Quality50%

“Good for sleep”

Magnesium13%

“Magnesium Glycinate is the one for bone and muscle health”

What buyers complain about

Muscle Pain Relief25%

“This is not for muscle”

Advertised Vs Actual Product25%

“This is an absolute case of misrepresentation”

Heart Health25%

“It can cause heartburn, indigestion, severe constipation”

Top return reasons

Magnesium33%
Advertised Vs Actual Product33%
Safety Standards33%

Common questions

Is magnesium glycinate profitable to sell on Amazon Singapore?
The niche generates $53K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +9.6%. Flapen's verdict: Skip it (46/100).
How competitive is the magnesium glycinate niche?
16 brands and 39 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 71% of demand.
What do buyers complain about in magnesium glycinate?
Top complaints mined from reviews: Muscle Pain Relief, Advertised Vs Actual Product, Heart Health. The return rate is 0.1%.
What does it cost to enter the magnesium glycinate niche?
Listings span $10.96–$57.23; the average listing price is $27.58 (sweet spot $15–$100). The average incumbent carries 14,002 reviews — the moat a new listing must climb.