Magtein
a small market ($38K/yr) — Magtein doesn't clear our bar today.
Flapen Score
Is Magtein profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Magtein is a £38K/yr Amazon United Kingdom market (21K searches/yr). The top 5 brands hold 84% of demand. Verdict: Skip it — 42/100.
Magtein: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -17.5% over the last 90 days and 7.9% of searches end in a purchase.
£38K
revenue / yr
Who owns the niche?
The top 5 brands hold 84% of demand, so 16% of the market is open.
16%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 11 products
Top Magtein products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Magtein Magnesium Threonate 120 Capsules High Strength 2100mg Pullulan Capsules UK Made to GMP & HACCP Standards Zero Additives
- Price
- £22.06
- Rating
- 4.5/5
- Reviews
- 1,083
- Age
- 3y ago

Vinco Magnesium L-Threonate Supplement - 120 High Strength Magnesium L Threonate Capsules - 2000mg Bioavailable Form of Magnesium per Serving - Non-GMO & Gluten Free - Made in The UK
- Price
- £11.95
- Rating
- 4.5/5
- Reviews
- 737
- Age
- 1y ago

Double Wood Magnesium L Threonate Supplement | 120 Capsules (30 Servings) High Strength Magnesium L Threonate (4 per Serving) 2000mg
- Price
- £31.74
- Rating
- 4.6/5
- Reviews
- 18,625
- Age
- 9y ago

Magnesium L-Threonate Magtein 2000mg - Memory Mental Clarity Restorative Sleep - Optimal Cerebral Assimilation - Patented Form from MIT - 90 Vegan Capsules - +1 Month Cure - Hexagon
- Price
- £23.17
- Rating
- 4.5/5
- Reviews
- 197
- Age
- 8mo ago

Magnesium L-Threonate 2100mg Daily Dose Magtein 30 Day Supply - Providing 151mg of Active Elemental Magnesium - Easily Absorbable - Highly Bioavailable No Artificial fillers - UK Manufactured
- Price
- £23.17
- Rating
- 4.5/5
- Reviews
- 296
- Age
- 4y ago
Trending
90-day click momentum
MagEnhance Magnesium Complex for Sleep Support - Magtein L-threonate Glycinate & Taurate - Nervous System & Muscle Relaxation Gentle on the Stomach 90 Vegan Capsules 30-Day Supply
- Price
- £20.75
- Rating
- 4.4/5
- Reviews
- 7,444
- Age
- 9y ago

NaturesPlus Magtein Magnesium L-Threonate- High Strength Calm Mood Memory Focus Cognitive - Vegan Non-GMO Gluten-Free - 90 Capsules
- Price
- £29.67
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago

Life Extension Neuro-Mag Magnesium-L-Threonate Minerals Muscle Cramps 90 Capsules Nutritional Supplement Vegan Gluten Free Soy Free
- Price
- £31.19
- Rating
- 4.6/5
- Reviews
- 204
- Age
- 3y ago

Magnesium L-Threonate Magtein 2000mg - Memory Mental Clarity Restorative Sleep - Optimal Cerebral Assimilation - Patented Form from MIT - 90 Vegan Capsules - +1 Month Cure - Hexagon
- Price
- £23.17
- Rating
- 4.5/5
- Reviews
- 197
- Age
- 8mo ago

Bandini Magnesium L-Threonate Magtein | High Strength Magnesium L Threonate 2000mg per Serving with Vitamins B1 B6 and B12 | 90 Vegan Capsules | High Absorption for Cognitive Function Support
- Price
- £28.02
- Rating
- 4.7/5
- Reviews
- 56
- Age
- 9mo ago
Newest
by launch date
NaturesPlus Magtein Magnesium L-Threonate- High Strength Calm Mood Memory Focus Cognitive - Vegan Non-GMO Gluten-Free - 90 Capsules
- Price
- £29.67
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 4mo ago

Magnesium L-Threonate Magtein 2000mg - Memory Mental Clarity Restorative Sleep - Optimal Cerebral Assimilation - Patented Form from MIT - 90 Vegan Capsules - +1 Month Cure - Hexagon
- Price
- £23.17
- Rating
- 4.5/5
- Reviews
- 197
- Age
- 8mo ago

Bandini Magnesium L-Threonate Magtein | High Strength Magnesium L Threonate 2000mg per Serving with Vitamins B1 B6 and B12 | 90 Vegan Capsules | High Absorption for Cognitive Function Support
- Price
- £28.02
- Rating
- 4.7/5
- Reviews
- 56
- Age
- 9mo ago

HARMONIFY Magnesium L Threonate Supplement with L Theanine Lemon Balm and Apigenin High Absorption 120 Purified Veggie Capsules 1400 mg Gluten Free Non-GMO Vegetarian
- Price
- £14.08
- Rating
- 4.0/5
- Reviews
- 29
- Age
- 1y ago

Vinco Magnesium L-Threonate Supplement - 120 High Strength Magnesium L Threonate Capsules - 2000mg Bioavailable Form of Magnesium per Serving - Non-GMO & Gluten Free - Made in The UK
- Price
- £11.95
- Rating
- 4.5/5
- Reviews
- 737
- Age
- 1y ago
Competition: brands, sellers & click share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
Brands
10 rising
Sellers
35
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
81%
Top 20: 100%
Open market
12%
- Time Health41%
- Vinco Supplements13%
- swiss bioenergetics11%
- Double Wood Supplements10%
- Hexagon9%
- Intelligent Labs4%
- Open — no brand owns it (4 brands, 12%)
Magtein demand & seasonality
Weekly search volume, with the niche's key stats alongside.
What reviews say buyers love and hate about Magtein
What buyers mention most, as a share of all reviews.
What buyers love
90% of reviews“Better sleep”
“So far, good quality for money, no side effects”
“Good quality magnesium supplement”
“It is very efficient”
“these are great value”
What buyers complain about
81% of reviews“Made no difference to my sleep”
“took it two hours after my breakfast due to drinking tea which would gave a negative effect on the magnesium”
“Therefore these are 4 X more expensive than advertised”
“Abdominal pain”
“you have to be aware that you are taking massive doses of magnesium if you take it according to the instructions, way a over the recommended daily intake and for some people this causes abdominal pain and other issues, and may not be good for heart and kidneys on a long term basis”
Magtein return rate & reasons
Why buyers send it back, as a share of all return requests.
0.1%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Magtein questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









