Natural Factors Natural Factors - Magnesium Bisglycinate Plus L-Theanine - 125 mg 125 mg, 90 vcaps
Natural Factors Magnesium Bisglycinate Plus L-Theanine - Combines 100 mg of the essential mineral magnesium with 125 mg of the amino acid L-theanine to temporarily promote relaxation without causing drowsiness. This non-GMO formula features magnesium bisglycinate, which is easy on the stomach and does not rely on stomach acid for absorption. Magnesium is an essential mineral required as an enzyme cofactor in more than 300 metabolic reactions throughout the body. It helps maintain healthy bones, teeth, muscles, and nerves and is needed to metabolize nutrients into energy. L-theanine is found naturally in green tea and has long been known to promote a sense of calm in tea drinkers. It provides a noticeable effect within 30–40 minutes of supplementation, helping to relieve symptoms of occasional and daily stress, calm the nerves, and focus the mind.

Price
Regular Canadian retail price: $23.48 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.
In stock. Free shipping across Canada on orders over $75. 30-day returns. Ships from Victoria, BC.
Why people keep reordering it
- Adaptogen support
- Herbs traditionally used to help the body adapt to everyday stress.
- Steady energy
- Supports balanced energy without the spike and the crash.
- Calm focus
- Helps you stay even through demanding days.
Best suited to: stress resilience, steady energy, calm focus, adrenal support.
What the research supports
- Handle stress better (evidence: moderate, from rct, systematic review)
- Adaptogens like ashwagandha help you feel less frazzled on busy days.
- Steadier energy (evidence: mixed, from clinical trial)
- Some people feel more even energy and less fatigue, though results vary.
Read the literature: Handle stress better on PubMed, Steadier energy on PubMed.
Product details
- Active ingredient
- Natural Factors - Magnesium Bisglycinate Plus L-Theanine - 125 mg
- Ingredient form
- vcaps
- Strength
- 125 mg
- Servings per container
- 90
- Suggested use
- As directed on label
- Country of manufacture
- Canada
- Independent testing
- ISURA
- Certifications
- Non-GMO, Made in Canada
- Storage
- Store in a cool, dry place
- Brand
- Natural Factors
How to take it
Take 1 to 2 capsules daily with food, or as directed by your healthcare practitioner.
- Store in a cool, dry place away from direct light.
- Keep out of reach of children.
- Consult a practitioner if you are pregnant, nursing or on medication.
Interactions and cautions
- Medications
- May interact with thyroid, sedative or immune medication. Review with your practitioner.
- Timing
- Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
- Pregnancy and breastfeeding
- Consult a healthcare practitioner before use if pregnant or breastfeeding.
- General
- Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.
This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.
Questions about Natural Factors - Magnesium Bisglycinate Plus L-Theanine - 125 mg
- Is this the genuine, authentic product?
- Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
- How is the price below retail?
- Forty-two years of supplier relationships let us price below what stores charge. You see it privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 2pm ET ship the same business day from our Canadian warehouse. Shipping is free over $75.
- Can I return it?
- Unopened products can be returned within 30 days. Find it cheaper anywhere in Canada and we will match the price.