Fenix L-Arginine Complete 5000mg, Mixed Berry Nitric Oxide Booster

Brand: Fenix Nutrition
Category: L-Arginine
Recorded price: $44.95; 8 Sep 2026
Price per serving: $1.50

Supplement facts

Serving size: 11.4g
Servings per container: 30

Ingredient	Amount per serving	% daily value
Calories	30	—
Total Carbohydrate	1 g	—
Vitamin C (as Ascorbic Acid)	60 mg	—
Vitamin D (as Cholecalciferol)	62.5 mcg	313%
Vitamin K (as Menaquinone-7)	20 mcg	17%
Vitamin B6 (as Pyridoxine Hydrochloride)	2 mg	118%
Folate (as Methyltetrahydrofolate Calcium)	667 mcg	167%
Vitamin B12 (as Methylcobalamin)	15 mcg	625%
Magnesium (as Magnesium Citrate)	20 mg	5%
Chromium (as Chromium Picolinate)	200 mcg	571%
L-Arginine	5000 mg	—
L-Citrulline	2000 mg	—

Label data transcribed from product photos.

Label data as of 10 Sep 2026

Product score

88.5 / 100Excellent

Category average: 66.1 / 100

This provides a reasonable serving of L-arginine plus a meaningful amount of supporting citrulline, but the label gives no directions, so the routine assessment assumes one serving.

Scoring criteria

Quantity
100 / 100
The assumed serving supplies 5,000 mg of L-arginine, a reasonable supplemental amount for the stated purpose.
Form
75 / 100
The identified free-form L-arginine in powder is a conventional oral form with no established relevant absorption or tolerability advantage over ordinary alternatives.
Convenience
100 / 100
Directions are not supplied, so I assume one labeled 11.4 g serving once daily; the 30-serving container provides 30 such portions.
Label accuracy
100 / 100
The supplied panel shows no apparent contradiction in the listed ingredients or amounts.
Purity
75 / 100
No product-specific purity testing or quality certification is provided, and no concrete purity defect is evident.
Cofactors
50 / 100
The separately quantified 2,000 mg of citrulline is a non-token complementary ingredient, though its added benefit at this amount is uncertain.