amino_acid1 form

Suntheanine

Evidence Level

Moderate Evidence

The Suntheanine form we carry

See how we score it — absorption, bioavailability & formulary tier

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Quick Answer

Which form of Suntheanine do we use?

Our formulary carries a single form of Suntheanine. See the details below.

All Forms of Suntheanine

Form	Tier	Form Score	Dose Range	Unit
Suntheanine®	Mapped	Verification pending	—	—

What is Suntheanine?

Suntheanine is an amino acid supplement available in 1 form.

FormulaForge carries a single form of Suntheanine, so there is no form to choose here. Forms on the market do differ in how well they absorb, which is why it is worth checking the form named on any product label.

The Form of Suntheanine We Carry

Suntheanine® (Mapped Form) has a bioavailability rating of high absorption.

How to Choose the Right Form

Multiple forms of Suntheanine are available. Start by comparing form ratings — Preferred Forms reflect the strongest bioavailability evidence, and higher-absorption forms deliver more active compound per dose unit.

The appropriate form depends on your individual goals and your healthcare provider’s recommendations. Consult a qualified professional before selecting a supplement form.

Dosing & Safety

Individual dose requirements vary based on health goals, body weight, and existing nutrient intake. Your healthcare provider can help you determine an appropriate amount of Suntheanine for you.

Side Effects: Consult your healthcare provider regarding tolerability, particularly at higher doses.

These statements are based on structure/function research and have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting or changing a supplement regimen.

The Science

The following studies and findings inform FormulaForge classifications for Suntheanine:

HPLC-MS enantiomer analysis found that several commercial L-theanine products contained D-theanine, while SunTheanine was exclusively the L-enantiomer. PMID: 14755608

Dosing Guidance

Individual dose requirements for Suntheanine vary based on health goals, body weight, and existing dietary intake. A qualified healthcare provider can help you determine an appropriate amount for you.

Frequently Asked Questions

Which form of Suntheanine is in our formulary?

Our formulary carries a single form of Suntheanine. Focus on products that specify the form on the label — not all forms are equally absorbed by the body.

How much Suntheanine should I take?

Dosing for Suntheanine varies based on the specific form, your health goals, and individual factors. Consult a qualified healthcare provider for personalized guidance.

What does Suntheanine support?

Suntheanine is commonly used to support amino_acid. Research suggests it plays a role in several physiological pathways. As with all supplements, these statements have not been evaluated by the Food and Drug Administration and Suntheanine is not intended to diagnose, treat, cure, or prevent any disease.

Is Suntheanine safe?

Suntheanine is generally well-tolerated when taken at research-supported doses. As with any supplement, individual responses vary. Consult a qualified healthcare provider before use, especially if you are pregnant, nursing, have a medical condition, or take medications. These statements have not been evaluated by the Food and Drug Administration.

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All amino_acid Ingredients

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References

HPLC-MS enantiomer analysis found that several commercial L-theanine products contained D-theanine, while SunTheanine was exclusively the L-enantiomer. PubMed

FormulaForge formulates and sells supplements containing the ingredients discussed on this page. Our formulary recommendations are based on peer-reviewed bioavailability research. All cited studies are independently verifiable.