Standardized 3.5% Extract Supports a Calm Mood* Passion flower (Passiflora incarnata) has been used for centuries by Native North and South Americans to promote a calm mood.* More recent scientific studies have indicated that certain constituents of passion flower may offer temporary relief from nervousness and typical everyday stress.* Passion flower extracts have been shown to aid in relaxation and to alleviate occasional but minor tenseness and restlessness.* Natural color variation may occur in this product.