Douglas Laboratories

Magnesium Oxide

$22.00

*Free shipping applies to orders shipped within the Lower 48 States.

Free shipping on orders over $99.
SKU: D08973 Category: Tags: , Product Brand:

The Promise

Product identity and composition Clear ingredient list, dose per capsule, and dietary details

Straightforward vegetarian capsule delivering elemental magnesium from magnesium oxide with minimal excipients.

What it is

Magnesium Oxide vegetarian capsule by Douglas Laboratories.

Principal ingredient

Provides 300 mg elemental magnesium per capsule (from 500 mg magnesium oxide).

Formulation

Single‑ingredient magnesium oxide core with typical excipients: microcrystalline cellulose, hydroxypropyl methylcellulose (capsule), hydroxypropyl cellulose, silica, carnauba wax, ascorbyl palmitate.

Dietary & quality facts

Vegetarian capsule; does not contain gluten or GMOs. Safety seal required for use.

Why It Works

Why these details matter Concrete formulation and physiological roles shown on the label

Labeled amounts, source, and formulation clarify dosing, compatibility, and biochemical context.

01

Labeled dose

Each capsule supplies 300 mg elemental magnesium — a discrete, measurable amount per serving.

02

Magnesium source

Elemental magnesium is delivered as magnesium oxide (500 mg magnesium oxide yields the 300 mg magnesium).

03

Biochemical role noted

Magnesium is identified as a cofactor in enzymatic reactions involved in energy production and protein synthesis.

04

Excipients & allergen profile

Uses common capsule excipients; label specifies no gluten and no GMOs.

Reviews

Customer Reviews

Your Journey

Using this product Exact directions, handling, and safety details from the label

Follow labeled serving, storage, and safety instructions.

Serving

Suggested use

Adults take 1 capsule daily or as directed by your health professional.

Serving size

Per serving

Serving Size: 1 vegetarian capsule delivering 300 mg elemental magnesium (from 500 mg magnesium oxide).

Storage & integrity

Storage and seal

Store in a cool, dry place. Use only if safety seal is intact.

Warnings

Safety notice

KEEP OUT OF THE REACH OF CHILDREN.

Product education

Magnesium Oxide by Douglas Laboratories

Magnesium Oxide — Each capsule provides 300 mg of elemental magnesium sourced from magnesium oxide, supporting essential physiological functions in the body. Many diets lack adequate magnesium, making supplementation vital for bridging this gap. Magnesium is crucial for over 300 enzymatic reactions, energy metabolism, and muscle function, while also playing a role in maintaining heart health and blood pressure.*

Key Benefits

  • Supports essential physiological functions*
  • Helps maintain normal heart function*
  • Contributes to bone health and strength

How It Works / Key Ingredients

Magnesium acts as a cofactor for numerous enzymes and is involved in critical processes such as energy production and protein synthesis. It is also essential for maintaining bone density and strength.

Supplement record

Review serving details and ingredients for this product.

Supplement Facts
Suggested Use: As a dietary supplement, adults take 1 capsule daily or as directed by your health professional.
Serving Size: 1 Vegetarian Capsule
Servings Per Container: —
INGREDIENTSAMT%DV
Magnesium300 mg
- (from 500 mg magnesium oxide)
†/- Daily Value not established.
Other Ingredients: Hydroxypropyl methylcellulose (capsule), microcrystalline cellulose, carnauba wax, ascorbyl palmitate, hydroxypropyl cellulose, and silica.
Does Not Contain: Gluten, GMOs
Warning: KEEP OUT OF THE REACH OF CHILDREN. Store in a cool, dry place. Use only if safety seal is intact.