Natural Factors L-Tyrosine 5 g (250 g)

Natural Factors L-Tyrosine Powder supplies 5,000 mg (5 g) of L-tyrosine in each scoop, packed in a 250 g tub. Helps to decrease cognitive fatigue due to physically stressful situations (e.g. extended wakefulness, exposure to cold, excessive noise). The label dose is a scoop twice a day, so the tub holds about 50 scoops, or 25 days of use.

What Natural Factors L-Tyrosine Powder is licensed for

It is licensed for sale by Health Canada and bears NPN 80130954. The licence lists one recommended use:

• Helps to decrease cognitive fatigue due to physically stressful situations (e.g. extended wakefulness, exposure to cold, excessive noise).

What L-tyrosine is

L-tyrosine is an aromatic amino acid, one of the twenty that make up proteins. Your body can build it from another amino acid, phenylalanine, which is why it is counted as non-essential. It is found in protein foods such as cheese, chicken, fish, eggs, soy and beans.

The licence lists L-tyrosine as the only ingredient. The tub holds plain free-form L-tyrosine, with no fillers, sweeteners or flavours.

Powder or capsules

Natural Factors also makes L-Tyrosine 500 mg as a vegetarian capsule. One scoop of the powder equals ten of those capsules, so the powder is the practical choice for anyone following the 5 g label dose. Capsules make more sense if you only want a small amount or travel a lot.

How to take it

Adults 18 and over take 1 scoop twice a day. Since tyrosine is the only ingredient, each scoop is about 5 g of powder. Consult a health care practitioner before use if you are pregnant or breastfeeding, and keep it out of the reach of children. The full directions and cautions are under How to Take.

Who it suits

Adults who face long shifts, cold work sites or loud surroundings and want a plain tyrosine powder they can measure themselves. It is a single-ingredient product, which keeps the label short for anyone tracking what they take. The tub format also lets you split a scoop if you want less than the label amount.

Natural Factors L-Tyrosine Powder FAQ

How much L-tyrosine is in each scoop?

5,000 mg, or 5 g.

How long does the 250 g tub last?

About 25 days at the label dose of 1 scoop twice a day.

Is there anything else in the powder?

No. L-tyrosine is the only ingredient listed.

What does the L in L-tyrosine mean?

It names the natural form of the amino acid, the one built into the proteins in food. Amino acids also have a mirror-image D form.

Is it licensed in Canada?

Yes. It bears NPN 80130954 and is licensed for sale by Health Canada.

Shop more Natural Factors supplements or the full tyrosine range. Orders over $99 ship free in Canada.