SuppScore

Ingredient form

L-Theanine

Rating
Great
Multiplier
×1.25
Updated
1 Sept 2026

How L-Theanine compares

VersusAlphawave L-Theanine×1.25Graded the same, at ×1.25.VersusCamellia Sinensis Extracts (EGCG + L-Theanine EMT™)×1.25Graded the same, at ×1.25.VersusL-Theanine (Green Tea)×1.25Graded the same, at ×1.25.VersusCamellia Sinensis (Matcha/EGCG/L-Theanine EMT™)×1A step down at ×1.

Or see every form ranked by absorption evidence.

Products using L-Theanine

Scored products that list it on the label, highest scoring first. Ordering is by SuppScore only. We have no commercial relationship with any brand shown.

Menopause x Charlotte Hunter

Nu Mind Wellness

Menopause x Charlotte Hunter

SuppScore 55
Calm Complex

Biocare

Calm Complex

SuppScore 43
NuroFuel Nootropic Brain Supplement for Focus, Energy, Memory & Mental Performance

HEAD START SUPPLEMENTS

NuroFuel Nootropic Brain Supplement for Focus, Energy, Memory & Mental Performance

SuppScore 36
Cognitive Complex

Viridian Nutrition

Cognitive Complex

SuppScore 32
Electrolytes Powder, Variety Pack

ViDrate

Electrolytes Powder, Variety Pack

SuppScore 18

References

  1. sciencedirect.com
  2. pubmed.ncbi.nlm.nih.gov
  3. pubmed.ncbi.nlm.nih.gov
  4. mdpi.com
  5. pubmed.ncbi.nlm.nih.gov

Reviewed by the SuppScore advisory board

Every score on this page is computed from the SuppScore ingredient database using our published scoring rules. Our advisory board maintains those rules and the ingredient data behind them, and takes no payment from the brands whose products are scored.

Meet the advisory board · Last reviewed 1 Sept 2026

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Other L-Theanine forms

All forms ranked