Other ingredients
Cellulose; Diatomaceous Earth
Image: NIH Office of Dietary Supplements, Dietary Supplement Label Database — No separate image reuse license stated
Signature Supplements
L-Arginine 400 mg
Capsule
Serving size1 Capsule(s)
Servings per containerNot listed
Package100 Capsule(s)
Data retrievedJul 28, 2026
Supplement Facts
Serving size 1 Capsule(s)
L-Arginine800 mgDV not established
Label directions
Directions: For adults; take one (1) to two (2) capsules daily; preferably with a meal.
Label warnings
Warning: Pregnant or lactating women should consult a doctor before using any product. Consult doctor before use if you have or have had kidney disease or if you are taking any medications or remedies such as those to treat high blood pressure heart medications muscle relaxants or diuretics. Discontinue use and consult your doctor if any adverse reactions occur such as gastrointestinal discomfort or low blood pressure. Not intended for use by persons under the age of 18.
Identity and label version
NIH label record338803
Entered into NIH DSLDSep 25, 2025
UPC / GTINNot listed
Manufacturer / distributor on labelSignature Supplements
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 338803Entered Sep 25, 2025
L-Arginine800 mg
Label warning: Warning: Pregnant or lactating women should consult a doctor before using any product. Consult doctor before use if you have or have had kidney disease or if you are taking any medications or remedies such as those to treat high blood pressure heart medications muscle relaxants or diuretics. Discontinue use and consult your doctor if any adverse reactions occur such as gastrointestinal discomfort or low blood pressure. Not intended for use by persons under the age of 18.
Sources and traceability
- NIH Dietary Supplement Label DatabaseData retrieved Jul 28, 2026Open source ↗
More from Signature Supplements
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.