Magnesium Threonate Powder
Skip itSoft demand (-4.2% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$34.16avg listing price — sweet spot $15–$100
Price range
Incredible$18.92–$65.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good68%top-5 brand share — brands hold most of the demand
Conversion
Okay3.9%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Review moat
Okay3,329.81avg incumbent reviews — the moat a new listing must climb
Market size
Okay$105K$105K/yr · 79K searches
Growth
Bad-4.2%90-day search growth — must beat 0% to launch
Is magnesium threonate powder profitable on Amazon?
According to Flapen's Amazon United States niche tracking, magnesium threonate powder is a $105K/yr Amazon United States market (79K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 49/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
magnesium threonate powder market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 3K–4K
- avg 100–250/product
- Revenue / yr
- $102K–$137K
- units × avg price
- Conversion rate
- 3.9%
- Avg BSR
- #1,031
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 81%
- Out of stock
- 2.5%
- Avg brand age
- 52 months
- Avg seller age
- 168 days
Competition: brands, sellers & click share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
43
Top-5 brand share
68%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
24%
- Life Extension26%
- BulkSupplements12%
- HealthyFinds11%
- NOW Foods10%
- TERRA ELMNT9%
- Micro Ingredients7%
magnesium threonate powder demand & seasonality
Weekly Amazon search volume, last 103 weeks — -4.2% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 1.9×
Top magnesium threonate powder search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- magnesium l-threonate powder37K/yr
- magnesium threonate powder28K/yr
- magnesium l threonate powder8K/yr
- magtein powder6K/yr
Top magnesium threonate 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.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Life Extension Neuro-Mag Magnesium L-Threonate Powder (Tropical Punch) - Ultra-Absorbable Magnesium - Supports Memory Focus Cognitive Function & Mood - Gluten free Non-GMO Vegetarian (30 Servings)
Life Extension$29.294.1★1,743 rev
BulkSupplements.com L-Threonine Powder -Threonine Supplement Amino Acid Supplement - Essential Amino Acid Gluten Free 500mg per Serving 500g (1.1 lbs) (Pack of 1)
BulkSupplements$18.924.6★528 rev
Magnesium L-Threonate Powder Sleep Memory and Cognitive Support Promotes Brain Health - High Absorption - Most Bioavailable Form of Magnesium - 100 Grams Pure Purity Above 99% Include 1g Scoop
HealthyFinds$29.544.5★13 rev
Now Supplements Magtein with Patented Form of Magnesium Powder 3.2 oz
NOW Foods$34.024.6★32 rev
Micro Ingredients Mag Duo Magtein Magnesium L-Threonate & Magnesium Glycinate Powder Restful Sleep Calm & Focus Support* 2-in-1 Advanced Magnesium Formula Sugar-Free Lemonade Flavor
Micro Ingredients$28.044.3★54 rev
Newest
by launch dateNow Supplements Magtein with Patented Form of Magnesium Powder 3.2 oz
NOW Foods$34.0232 rev
Micro Ingredients Mag Duo Magtein Magnesium L-Threonate & Magnesium Glycinate Powder Restful Sleep Calm & Focus Support* 2-in-1 Advanced Magnesium Formula Sugar-Free Lemonade Flavor
Micro Ingredients$28.0454 rev
Magnesium L-Threonate Powder Sleep Memory and Cognitive Support Promotes Brain Health - High Absorption - Most Bioavailable Form of Magnesium - 100 Grams Pure Purity Above 99% Include 1g Scoop
HealthyFinds$29.5413 rev
Triple Sleep Magnesium L-Threonate Powder w. Apigenin L-Theanine + Melatonin - Magtein Magnesium L Threonate Supplement - High Strength Magnesium for Deep Sleep & Calm Natural Sleep Aid for Adults
TERRA ELMNT$29.46350 rev
NATURE TARGET Magnesium Powder Supplement with Glycinate Citrate Malate Magnesium Complex with L-Theanine & Vitamin B6 for Muscle Heart & Brain Vegan 10.58 oz (100 Servings) Lemon Orange Flavor
NATURE TARGET$20.77468 rev
Trending
90-day click momentum
Synchro Rest Sleep Supplement - Magnesium L-Threonate Powder with L-Theanine Glycine Lemon Balm Extract & Apigenin - Melatonin-Free Magnesium Powder for Sleep - Sweet Lemon Flavor - 30 Servings
Synchro$39.734.4★
Now Supplements Magtein with Patented Form of Magnesium Powder 3.2 oz
NOW Foods$34.024.6★
Micro Ingredients Mag Duo Magtein Magnesium L-Threonate & Magnesium Glycinate Powder Restful Sleep Calm & Focus Support* 2-in-1 Advanced Magnesium Formula Sugar-Free Lemonade Flavor
Micro Ingredients$28.044.3★
Magnesium L-Threonate Powder Sleep Memory and Cognitive Support Promotes Brain Health - High Absorption - Most Bioavailable Form of Magnesium - 100 Grams Pure Purity Above 99% Include 1g Scoop
HealthyFinds$29.544.5★
500g (1.1LB) Magnesium L-Threonate 98% Bulk Powder
Bright sunlight$63.905.0★
What reviews say buyers love and hate about magnesium threonate powder
What buyers praise and complain about, mined from review topics.What buyers love
“Deep sleep”
“Excellent Product”
“Great magnesium choice”
“Great vitamin”
“Cost effective”
“As Advertised”
“Works well”
“Plus it tastes pretty good”
“Great for focus”
“Great to relax”
What buyers complain about
“Does NOT make you sleep”
“This is pricey”
“Unclear dosage instructions”
“Horrible side effect”
“I don't believe this has the magnesium forms it says it does”
“No benefits to this one”
“Capsules Are Too Large”
“Poor Quality Control”
“the taste was chalky”
“Not NSF Certified”
Top return reasons
Common magnesium threonate powder questions
- Is magnesium threonate powder profitable to sell on Amazon United States?
- The niche generates $105K/yr across 16 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.2%. Flapen's verdict: Skip it (49/100).
- How competitive is the magnesium threonate powder niche?
- 14 brands and 43 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 68% of demand.
- What do buyers complain about in magnesium threonate powder?
- Top complaints mined from reviews: Sleep Quality, Value For Money, Dosage. The return rate is 0.0%.
- When does demand for magnesium threonate powder peak?
- Demand peaks in Sep–Oct; the busiest month runs 1.9× the quietest.
- What does it cost to enter the magnesium threonate powder niche?
- Listings span $18.92–$65.52; the average listing price is $34.16 (sweet spot $15–$100). The average incumbent carries 3,330 reviews — the moat a new listing must climb.