Skip to content

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Best Supplement Companies 2026

Free International shipping

WELCOME TO PRIMENUTRA.CO.UK

HOT SALE!

USE CODE: LUCKYCUSTOMER FOR 20% OFF!

Gsupps Australia
Skip to product information
1 of 14

HOT PRODUCT | LOW STOCK

Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive Support – High Absorption – Most Bioavailable Form of Magnesium – 2,000 mg – 120 Capsules

Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive Support – High Absorption – Most Bioavailable Form of Magnesium – 2,000 mg – 120 Capsules

Regular price $98.00
Sale price $98.00 Regular price $43.00
SAVE -128% Sold out
Size

Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive Support – High Absorption – Most Bioavailable Form of Magnesium – 2,000 mg – 120 Capsules

Regular price $98.00
Sale price $98.00 Regular price $43.00
SAVE -128% Sold out
  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Get it between - and -.

Magtein Web 1
magtein desktop 2
Magtein desktop 3
Magtein desktop 4
Magtein 5: Desktop

Complete Your Stack

Magtein

L-Theanine

Methylated Multivitamin

Liquid Collagen

Ashwagandha KSM 66

Customer Reviews
4.6 out of 5 stars 19,222
4.7 out of 5 stars 1,628
4.7 out of 5 stars 1,459
4.3 out of 5 stars 3,922
4.7 out of 5 stars 579
Price
$29.95 $19.95 $19.95 $21.95 $17.95
Primary Benefit
Supports Healthy Brain* Emotional Wellness Support* Energy Metabolism Support* Supports Healthy Skin* Supports Relaxation*
Secondary Benefit
Supports Relaxation* Supports Relaxation Supports Methylation & DNA* Supports Joint Health* Supports Muscle Recovery*
Non-GMO
Gluten Free
Vegan
  • Magnesium L-threonate is best used to support cognitive function and better sleep by effectively increasing magnesium levels in the brain by crossing the blood brain barrier.

  • A typical daily dose ranges from 1,000 mg to 2,000 mg, depending on individual needs.

  • It may take a few weeks to notice cognitive benefits, though some people report better sleep or relaxation within days.

  • Evening or before bed is ideal, as it may promote restful sleep. However, some split the dosage between morning and evenings.

  • Side effects are rare but may include headaches, drowsiness, or mild stomach upset—starting with a lower dose and taking it with food can help.

About this item

  • ONLY FORM OF MAGNESIUM ABLE TO SUPPORT MAGNESIUM LEVELS IN THE BRAIN: Magtein Magnesium L-Threonate is a unique magnesium breakthrough supplement and the only form of magnesium clinically proven to support magnesium levels in the brain
  • CLINICALLY STUDIED FOR COGNITIVE WELLNESS: Magnesium L-Threonate has been studied for its role in supporting memory, learning, and overall cognitive performance.
  • HIGHLY BIOAVAILABLE FORM OF MAGNESIUM: L-Threonate is a mineral chelating agent that is able to greatly enhance the bioavailability of magnesium making it highly absorbable
  • MAGNESIUM FOR SLEEP: Magnesium Threonate is commonly taken alongside L-Theanine and Apigenin in a sleep cocktail for nighttime assistance
  • WE BOTTLE WELLNESS: At Double Wood we provide pure, potent supplements that deliver exceptional value, all backed by careful sourcing and rigorous third-party testing

Ingredients

Active Ingredients: Magnesium L-Threonate 2000mg, Other Ingredients: Gelatin, Rice Flour

View full details