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The length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
This is the D-Phenylalanine form, not DL, or L form.
Doctor's Best D-phenylalanine is a non-protein amino acid that acts as an inhibiting agent to enzymes that degrade enkephalins, naturally occurring peptides in the body that metabolize endorphins. Endorphins are neurotransmitters that play a key role in the function of the nervous system and are associated with feelings of pleasure. By limiting production of enzymes that brake down endorphins, the supplement can help support a healthy mood and normal functioning of the nervous system.
Adult Use: Take 1 capsule daily on an empty stomach at least 20 minutes before meals, or as recommended by a nutritionally-informed physician. To ensure optimal phenylalanine absorption, avoid taking other amino acid supplements within 2-3 hours of intake.
Hypromellose (vegetarian capsule), microcrystalline cellulose, magnesium stearate (vegetable source).
Phenylalanine supplements should not be taken by children, pregnant, nursing, individual with phenylketonuria (PKU), high blood pressure, taking anti-psychotic medications or MAO inhibitors. Consult your physician before use.
Store in a cool dry place.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement Facts | ||
| Serving Size: 1 veggie capsule | ||
| Servings Per Container: 60 | ||
| Amount per serving | % Daily Value | |
| D-phenylalanine | 500 mg | † |
| † Daily Value not established. | ||
