Magnesium Glycinate
Worth a lookShows a $94.7M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$94.7M$94.7M/yr · 40.6M searches
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Avg price
Great$19.10avg listing price — sweet spot $15–$100
Price range
Great$6.80–$45.01cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good64%top-5 brand share — brands hold most of the demand
Competition
Good51%top-5 click share — leaders hold, buyers still browse
Growth
Bad-2.6%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Review moat
Bad19,679.42avg incumbent reviews — the moat a new listing must climb
Is magnesium glycinate profitable on Amazon?
According to Flapen's Amazon United States niche tracking, magnesium glycinate is a $94.7M/yr Amazon United States market (40.6M searches/yr). The top 5 brands hold 64% of demand. Verdict: Worth a look — 65/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
magnesium glycinate market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 1.0M–1.0M
- avg 150,000–200,000/product
- Revenue / yr
- $19.1M–$19.1M
- units × avg price
- Conversion rate
- 12.2%
- Avg BSR
- #22
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 0.0%
- Avg brand age
- 49 months
- Avg seller age
- 139 days
Competition: brands, sellers & click share
The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.Brands
20 falling
Sellers
695
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
51%
Top 20: 93%
Open market
30%
- Pure Encapsulations24%
- Nature's Bounty14%
- Nature Made10%
- Double Wood Supplements9%
- NatureBell7%
- Nobi Nutrition6%
magnesium glycinate demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top magnesium glycinate search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- magnesium glycinate24.0M/yr
- magnesium8.8M/yr
- magnesium glycinate 500mg1.6M/yr
- magnesium glycinate 400mg1.9M/yr
- glicinato de magnesio638K/yr
- magnesio616K/yr
- pure magnesium glycinate474K/yr
- magnesium supplement844K/yr
- magnesio glycinate293K/yr
- magnesium for sleep457K/yr
Top magnesium glycinate 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
Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief Sleep Heart Health Nerves Muscles and Metabolism* - with Magnesium Glycinate - 90 Capsules
Pure Encapsulations$26.104.7★49,969 rev
Natures Bounty High Absorption Magnesium Glycinate 240 mg for Supporting Muscle Relaxation and Bone Heart & Nerve Health Non-GMO Gluten-Free Vegetarian 120 Count/60 Servings
Nature's Bounty$15.654.7★5,675 rev
Magnesium Glycinate 400mg | 180 Capsules | Sleep Muscle & Heart Support | Vegan Third Party Tested Gluten Free Non-GMO by Double Wood Supplements
Double Wood Supplements$15.834.7★24,182 rev
Naturebell Pure Magnesium Glycinate 500mg 240 Veggie Capsules | 100% Chelated & Purified 3rd Party Tested Vegan Friendly Non-GMO Filler Free
NatureBell$17.664.7★19,678 rev
Magnesium Glycinate 500mg | High Absorption | Sleep Muscle Bone Heart Health & Relaxation Support for Women & Men | Chelated Mag Glycinate | Magnesium Supplement | Vegan & Non-GMO | 120 Capsules
Nobi Nutrition$15.154.6★6,787 rev
Newest
by launch date
Magnesium Glycinate 500mg - VIT. B6 & D3 - Sleep Muscle & Heart - 120 Caps
NUTRAHARMONY$13.235,543 rev
VITBOOST Magnesium Glycinate 500mg - Support Sleep 120 Veggie Capsules
VITBOOST$11.121,726 rev
THORNE - Magnesium Glycinate - Supports Restful Sleep Muscle Relaxation Heart Health & Metabolism* - Chelated Magnesium Capsules - Third-Party Certified - Gluten Dairy & Soy-Free - 90 Servings
THORNE$25.392,847 rev
Natures Bounty High Absorption Magnesium Glycinate 240 mg for Supporting Muscle Relaxation and Bone Heart & Nerve Health Non-GMO Gluten-Free Vegetarian 120 Count/60 Servings
Nature's Bounty$15.655,675 rev
Life Extension Magnesium Glycinate Heart Health Bone Health Nerve and Muscle Support Highly absorbable Gluten-Free Non-GMO Vegetarian 90 Capsules
Life Extension$16.642,110 rev
Trending
90-day click momentumVITBOOST Magnesium Glycinate 500mg - Support Sleep 120 Veggie Capsules
VITBOOST$11.124.7★
Magnesium Glycinate 500mg - VIT. B6 & D3 - Sleep Muscle & Heart - 120 Caps
NUTRAHARMONY$13.234.6★
Nature Made High Absorption Magnesium Glycinate Gummies 40 Count
Nature Made$12.184.6★
Magnesium Glycinate 500mg | High Absorption | Sleep Muscle Bone Heart Health & Relaxation Support for Women & Men | Chelated Mag Glycinate | Magnesium Supplement | Vegan & Non-GMO | 120 Capsules
Nobi Nutrition$15.154.6★
Dr. Berg Magnesium Glycinate 150ct 4-in-1 Chelated for Muscle Nerve Sleep & Stress Support* w/ D3 B6 & Zinc 4X Lab-Tested No Fillers Formulated in USA GMP-Certified
Dr. Berg Nutritionals$29.914.7★
What reviews say buyers love and hate about magnesium glycinate
What buyers praise and complain about, mined from review topics.What buyers love
“More deep sleep”
“Great quality and exactly as described”
“Great magnesium tablets”
“Competitive price”
“arrived as described”
“great for muscle spasms”
“Best Vitamins”
“Works perfectly”
“Easier to swallow”
“It helped with knee inflammation”
What buyers complain about
“Did not help with sleep”
“I was taking the wrong magnesium”
“Dosage too high”
“Very Large Tablets”
“noticed no results”
“Hard To Swallow”
“Bad Side effects”
“False advertisement”
“Poor quality control”
“Stomach pain not good”
Top return reasons
Common magnesium glycinate questions
- Is magnesium glycinate profitable to sell on Amazon United States?
- The niche generates $94.7M/yr across 26 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -2.6%. Flapen's verdict: Worth a look (65/100).
- How competitive is the magnesium glycinate niche?
- 20 brands and 695 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in magnesium glycinate?
- Top complaints mined from reviews: Sleep Quality, Magnesium, Dosage. The return rate is 0.0%.
- When does demand for magnesium glycinate peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the magnesium glycinate niche?
- Listings span $6.80–$45.01; the average listing price is $19.10 (sweet spot $15–$100). The average incumbent carries 19,679 reviews — the moat a new listing must climb.