Best Supplements for Stress Support

Several well-studied ingredients may support the body's healthy response to everyday stress as part of a balanced lifestyle. Research suggests that certain minerals, adaptogenic botanicals, and amino acids play roles in healthy nervous system function and relaxation. FormulaForge ranks every ingredient by the bioavailability of its available forms, so you can select the forms your body can actually use.

Updated 2026 · Reviewed by Dr. Brennan Commerford, D.C.

Research-Backed Ingredients

Frequently Asked Questions

What supplements may support a healthy stress response?

Ingredients such as Magnesium Glycinate, concentrated Ashwagandha extracts (KSM-66 or Sensoril), and L-Theanine are commonly included in wellness routines aimed at supporting a calm, balanced response to everyday stress. These supplements are not intended to diagnose, treat, cure, or prevent any disease, including anxiety or stress-related disorders. Consult a qualified healthcare provider for clinical concerns.

How does ashwagandha support a healthy stress response?

Ashwagandha is an adaptogenic botanical traditionally used to support the body's response to everyday stressors. A 60-day randomized, double-blind, placebo-controlled study in 64 chronically stressed adults (Chandrasekhar et al. 2012; PMID 23439798) found that a high-concentration ashwagandha root extract was associated with significantly lower perceived-stress scores versus placebo. These are structure/function observations — ashwagandha is not a treatment for any medical condition.

Does L-theanine support a sense of calm?

L-Theanine is an amino acid found in tea leaves. A 4-week randomized controlled trial in healthy adults (Hidese et al. 2019; PMID 31623400) reported that L-theanine administration was associated with improvements in stress-related symptoms and certain cognitive measures versus placebo. Research suggests it may support a relaxed-yet-alert state. These are structure/function claims only.

What is the best form of magnesium for relaxation?

Magnesium Glycinate (Bisglycinate) is our top-ranked form for supporting healthy relaxation, with superior bioavailability compared to oxide or carbonate forms. Magnesium plays a role in healthy nervous system function; a double-blind placebo-controlled trial in older adults (Abbasi et al. 2012; PMID 23853635) observed associations between magnesium supplementation and sleep measures. These are structure/function claims; consult your healthcare provider for personalized guidance.