Life Extension Theanine XR Stress Relief product packaging

Image: NIH Office of Dietary Supplements, Dietary Supplement Label DatabaseNo separate image reuse license stated

Life Extension

Theanine XR Stress Relief

Tablet or Pill

Serving size1 Vegetarian Tablet(s)
Servings per containerNot listed
Package30 Vegetarian Tablet(s)
Data retrievedJul 28, 2026

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Supplement Facts

Serving size 1 Vegetarian Tablet(s)

Calcium50 mg4% DV
Phosphorus40 mg3% DV
Theanine XR400 mgDV not established

Other ingredients

Microcrystalline Cellulose; Hydroxypropyl Methylcellulose (HPMC); Hydroxypropyl Cellulose (HPC); Stearic Acid; Silica; Stearate; Croscarmellose Sodium; Glycerin

Label directions

Directions: Take one (1) tablet daily; or as recommended by a healthcare practitioner.

Label warnings

Read the entire label and follow the directions carefully prior to use. Warnings: Keep out of reach of children. Do not exceed recommended dose. Do not purchase if outer seal is damaged. Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating. To report a serious adverse event or obtain product information contact 1-866-280-2852.

Identity and label version

NIH label record328727
Entered into NIH DSLDMay 21, 2025
UPC / GTIN00737870242932
Manufacturer / distributor on labelQuality Supplements and Vitamins Inc.
Market statusOn market in the source data
“Entered into NIH DSLD” is the database entry date for this label record. It is not a manufacturer launch date or a label effective date.

NIH label history (1)

Current labelNIH record 328727Entered May 21, 2025
Serving size1 Vegetarian Tablet(s)
Formula versionc8f7e4b3
Ingredients on label3
NIH sourceOpen label ↗
Calcium50 mg
Phosphorus40 mg
Theanine XR400 mg

Label warning: Read the entire label and follow the directions carefully prior to use. Warnings: Keep out of reach of children. Do not exceed recommended dose. Do not purchase if outer seal is damaged. Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating. To report a serious adverse event or obtain product information contact 1-866-280-2852.

Sources and traceability

  • NIH Dietary Supplement Label DatabaseData retrieved Jul 28, 2026
    Open source ↗

More from Life Extension

Data comes from product labels or official public sources. It does not mean Safmira, NIH, or FDA approves, certifies, or recommends this product. Label amounts are not laboratory measurements.