magnesium
Skip itA small market ($8K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Avg price
Great$22.33avg listing price — sweet spot $15–$100
Price range
Great$10.96–$57.23cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good66%top-5 brand share — brands hold most of the demand
Competition
Good55%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+6.2%90-day search growth — must beat 0% to launch
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Review moat
Bad12,118.76avg incumbent reviews — the moat a new listing must climb
Market size
Bad$8K$8K/yr · 14K searches
According to Flapen's Amazon Singapore niche tracking, magnesium is a $8K/yr Amazon Singapore market (14K searches/yr). The top 5 brands hold 66% of demand. Verdict: Skip it — 47/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
magnesium market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $22K–$28K
- units × avg price
- Conversion rate
- 2.5%
- Avg BSR
- #177
- Page quality
- 0%
- Prime
- 76%
- Sponsored
- 36%
- Out of stock
- 3.9%
- Avg brand age
- 85 months
- Avg seller age
- 0 days
Competition & brand share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
18 falling
Sellers
35
Top-5 brand share
66%
Top 20: 100%
Top-5 click share
55%
Top 20: 96%
Open market
28%
- Now Foods22%
- Doctor's Best17%
- Nature's Bounty13%
- Swanson8%
- PH PROWISE Healthcare7%
- Nature Made6%
Demand
Weekly Amazon search volume, last 47 weeks — +6.2% search growth over the last 90 days.Top magnesium search terms
- magnesium13K/yr
- magnesium supplement667/yr
- magnesium supplements259/yr
Top magnesium 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Now Foods Magnesium Glycinate 180 Tablets
Now Foods$26.114.7★7,891 rev
Doctors Best High Absorption Magnesium Glycinate Lysinate 100% Chelated Non-GMO Vegan Gluten & Soy Free 100 mg 240 Tablets
Doctor's Best$23.844.6★63,381 rev
Natures Bounty Magnesium Bone and Muscle Health Tablets 500 mg 200 Ct
Nature's Bounty$15.514.7★92,694 rev
Magnesium Glycinate Complex 4 in 1-1866mg per serving | Precise 404mg Elemental Magnesium dose | Added Magnesium Glycinate Citrate Malate & Taurate | 90 Vegan Capsules - by Prowise
PH PROWISE Healthcare$23.734.4★2,594 rev
Swanson Triple Magnesium Complex 400 mg 100 Vegan Caps Halal Reduce Stress Tiredness Fatigue Supports Nerve Muscle Bone Mood Cognitive Health
Swanson$12.644.7★1,510 rev
Newest
by launch date
Magnesium Citrate Capsules 1500mg with Vitamin B6 | 120 Vegan Capsules | 450mg Elemental Mg | High Strength Magnesium Supplements for Women & Men | Capsule not Tablets | Made in UK by Prowise
PH PROWISE Healthcare$21.67197 rev
365 by Whole Foods Market Magnesium Gummies 60 Count
365 by Whole Foods Market$17.6720 rev
NOW Foods Magnesium Glycinate With BioPerine 180 Veg Capsules
Now Foods$25.63914 rev
21st Century Magnesium Glycinate 200 mg Capsules per Serving 90 Count
21ST CENTURY$17.47268 rev
Calcium Magnesium Zinc + D3 1565mg Time-Release Formula | All-in-One Bone Muscle & Immunity Booster 120 CT
Nano Singapore$13.942 rev
Trending
90-day click momentum21st Century Magnesium Glycinate 200 mg Capsules per Serving 90 Count
21ST CENTURY$17.474.6★
Magnesium Citrate Capsules 1500mg with Vitamin B6 | 120 Vegan Capsules | 450mg Elemental Mg | High Strength Magnesium Supplements for Women & Men | Capsule not Tablets | Made in UK by Prowise
PH PROWISE Healthcare$21.674.5★
Nature Made Magnesium 250 mg Tablets 200 Count Value Size (Packaging May Vary)
Nature Made$17.184.7★
Swanson Ultra Swanson Albion Chelated Magnesium Capsules 133 mg 90-Count
Swanson$10.964.6★
NOW Foods Magnesium Glycinate With BioPerine 180 Veg Capsules
Now Foods$25.634.7★
What buyers say about magnesium
What buyers praise and complain about, mined from review topics.What buyers love
“Good for sleep”
“Good for digest”
“Magnesium Glycinate is the one for bone and muscle health”
What buyers complain about
“This is not for muscle”
“This is an absolute case of misrepresentation”
“It can cause heartburn, indigestion, severe constipation”
Top return reasons
Common questions
- Is magnesium profitable to sell on Amazon Singapore?
- The niche generates $8K/yr across 25 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +6.2%. Flapen's verdict: Skip it (47/100).
- How competitive is the magnesium niche?
- 18 brands and 35 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 66% of demand.
- What do buyers complain about in magnesium?
- 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 niche?
- Listings span $10.96–$57.23; the average listing price is $22.33 (sweet spot $15–$100). The average incumbent carries 12,119 reviews — the moat a new listing must climb.