NutraVeri
Score My Formula
Ingredient database

Sleep & Calm

L-Theanine

L-theanine is an amino acid found naturally in tea leaves, used in supplements as an isolated ingredient, often paired with caffeine or calm-support botanicals.

Popularity: HighEvidence: EmergingClaim risk: Watch language
Build a formula with L-Theanine →Score My Formula Free
Readiness intelligence

Common product types

Capsules, Powders.

Common wellness context

Formulated toward wellness goals like relaxation support and a sense of calm focus. It appears in both calm/sleep formulas and focus formulas.

Evidence posture

Studied in relaxation and attention contexts, frequently in combination with caffeine. Evidence is growing but trial sizes and designs vary.

Claim-risk posture

Relaxation and calm-focus framing is generally lower risk when kept to general wellness. Avoid implying it addresses anxiety or attention disorders.

Label considerations

Specify the isomer (L-theanine) and the per-serving amount. If pairing with caffeine, the ratio is often part of the product story and should be accurate.

Dose discussion

Commonly used in the 100 to 200 milligram range per serving in formulas, sometimes paired with caffeine at a defined ratio. Set the exact amount with your formulator.

Safety notes

Generally well tolerated in adult wellness formulas. As with any ingredient, people who are pregnant, nursing, or on medication should consult a healthcare professional.

FDA and FTC posture

A dietary ingredient that is not FDA-approved. Calm and focus claims must be truthful, not misleading, and supportable.

Formula fit

Versatile across calm, sleep, and focus formulas. Pairs with caffeine for calm-focus, or with magnesium and botanicals for evening routines.

What founders usually get wrong

  • Implying it treats anxiety or focus disorders.
  • Listing a caffeine ratio the formula does not actually deliver.
  • Being vague about the per-serving amount.

Caution flags

  • Caffeine pairing should be accurately described
  • Isomer specificity on label
From research to a real concept

A supplement is more than one ingredient.

L-Theanine is a starting point. NutraVeri turns ingredients, dose logic, claims, label readiness, and manufacturing readiness into one formula-level score, free.

Build with L-Theanine →Score My Formula Free

Free. No card. Your formula stays yours.

Related ingredients

Caffeine

Performance & Energy

Magnesium Glycinate

Sleep & Calm

Ashwagandha

Sleep & Calm

Forward this

Useful for a client, a co-packer, or a founder friend? Send the page. Public information only.

Not ready to build yet?

See how this ingredient affects your formula score.

Get the founder readiness checklist by email, then score a formula free when you are ready. No card, no spam.

Ready now? Start a free formula score.

This page is educational readiness information, not medical, legal, or regulatory advice. Dietary supplements are not FDA-approved. NutraVeri does not diagnose, treat, or prevent any condition. Consult a qualified professional before making formulation, label, claim, or health decisions. Your formula stays yours.