Magnesium Gel Capsules
Worth a lookShows low returns (0.0%), but a deep review moat (21,189 avg reviews) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.9%search→purchase rate — share of searches ending in a sale
Market size
Great$1.3M$1.3M/yr · 644K searches
Avg price
Great$15.36avg listing price — sweet spot $15–$100
Price range
Good$4.10–$40.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay62%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-14.4%90-day search growth — must beat 0% to launch
Brand share
Bad93%top-5 brand share — brand-locked demand
Review moat
Bad21,188.68avg incumbent reviews — the moat a new listing must climb
Is magnesium gel capsules profitable on Amazon?
According to Flapen's Amazon United States niche tracking, magnesium gel capsules is a $1.3M/yr Amazon United States market (644K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jan–Apr. Verdict: Worth a look — 53/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
magnesium gel capsules market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 80K–100K
- avg 6,000–8,000/product
- Revenue / yr
- $1.2M–$1.5M
- units × avg price
- Conversion rate
- 12.9%
- Avg BSR
- #220
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 0.0%
- Avg brand age
- 59 months
- Avg seller age
- 144 days
Competition: brands, sellers & click share
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.Brands
10 rising
Sellers
178
Top-5 brand share
93%
Top 20: 100%
Top-5 click share
62%
Top 20: 93%
Open market
5%
- Nature Made73%
- Nature's Bounty7%
- Alliwise5%
- Amazon Basics5%
- HZZYPLANT2%
- Qunol2%
- Open — no brand owns it (4 brands, 5%)
magnesium gel capsules demand & seasonality
Weekly Amazon search volume, last 104 weeks — -14.4% search growth over the last 90 days.Peak months: Jan, Apr · busiest ÷ quietest = 10.0×
Top magnesium gel capsules search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- magnesium 400 mg102K/yr
- nature made magnesium158K/yr
- magnesium nature made43K/yr
- magnesium glycinate softgels35K/yr
- magnesium 400mg93K/yr
- magnesium 40028K/yr
- magnesium extra strength 400 mg21K/yr
- magnesium softgels20K/yr
- 400 mg magnesium16K/yr
- magnesium gel capsules16K/yr
Top magnesium gel capsules 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Nature Made Magnesium Oxide Extra Strength 400 mg 60 Softgels
Nature Made$10.074.7★44,839 rev
Nature Made Magnesium Oxide Extra Strength 400 mg 110 Softgels
Nature Made$11.324.7★44,839 rev
Nature Made Magnesium Oxide 250 mg for Muscle Relaxation 200 Tablets
Nature Made$6.804.7★34,776 rev
Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules
Nature Made$21.134.7★2,683 rev
Amazon Basics Magnesium Bone & Muscle Health Capsules 400 mg 250 Count
Amazon Basics$13.704.6★98 rev
Newest
by launch date
Nature Made Extra Strength Dosage Magnesium Citrate Tablets 60 Tablets
Nature Made$13.2975 rev
Nature Made Magnesium + Ashwagandha Capsules 60 Capsules
Nature Made$11.06107 rev
Amazon Basics Magnesium Bone & Muscle Health Capsules 400 mg 250 Count
Amazon Basics$13.7098 rev
Magnesium Glycinate 500mg Softgels High Absorption Magnesium Supplement Softgel Capsules for Muscle Heart Sleep & Bone Support Stress Relief Nerve Health & Metabolism Non-GMO 2 Month Supply
HZZYPLANT$9.93428 rev
Nature Made Magnesium Glycinate 300 mg per 3 Capsules 90 Capsules
Nature Made$21.132,683 rev
Trending
90-day click momentumNature Made Extra Strength Dosage Magnesium Citrate Tablets 60 Tablets
Nature Made$13.294.4★
Nature Made Magnesium + Ashwagandha Capsules 60 Capsules
Nature Made$11.064.3★
Amazon Basics Magnesium Bone & Muscle Health Capsules 400 mg 250 Count
Amazon Basics$13.704.6★
Nature Made Magnesium Oxide Extra Strength 400 mg 60 Softgels
Nature Made$10.074.7★
Magnesium Glycinate 500mg Softgels Small Easy Swallow Magnesium Supplement
Alliwise$23.114.5★
What reviews say buyers love and hate about magnesium gel capsules
What buyers praise and complain about, mined from review topics.What buyers love
“Great for sleeping”
“These capsules appear to be of great quality”
“Best magnesium supplement”
“They are affordable”
“arrived as described”
“Good daily vitamin”
“Eases muscle cramping”
“Easier to swallow”
“Good works as intended”
“Perfect dosage per capsule”
What buyers complain about
“Too much magnesium”
“I can not sleep properly”
“Said they were small”
“Dosage too high”
“intolerant side effect”
“FALSE ADVERTISING”
“Not effective”
“VERY HARD TO SWALLOW”
“Hard on my stomach”
“Weird Taste”
Top return reasons
Common magnesium gel capsules questions
- Is magnesium gel capsules profitable to sell on Amazon United States?
- The niche generates $1.3M/yr across 25 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -14.4%. Flapen's verdict: Worth a look (53/100).
- How competitive is the magnesium gel capsules niche?
- 10 brands and 178 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 93% of demand.
- What do buyers complain about in magnesium gel capsules?
- Top complaints mined from reviews: Magnesium, Sleep Quality, Size-Overall. The return rate is 0.0%.
- When does demand for magnesium gel capsules peak?
- Demand peaks in Jan–Apr; the busiest month runs 10.0× the quietest.
- What does it cost to enter the magnesium gel capsules niche?
- Listings span $4.10–$40.09; the average listing price is $15.36 (sweet spot $15–$100). The average incumbent carries 21,189 reviews — the moat a new listing must climb.