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Category - Amino Acids - Free Form

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L-Tyrosine Tyrosine Powder L-Tyrosine Powder


L-Tyrosine is Dr. Slagle's favorite amino acid, the cornerstone of her many years' successful natural treatment of low moods in thousands of patients.*

Dr. Slagle has personally taken tyrosine every day since 1973 to maintain a healthy mood. Since 1973, she has not had 1 day of low moods.

See "The Way Up From Down", Dr. Slagle's book detailing her approach to the natural drug free treatment of stress, low moods*

Besides multiple other functions, Dr. Slagle considers tyrosine to be so important because of its ability to convert to the mood elevating neurotransmitters, norepinephrine & dopamine, in your brain. It is well established that low moods are caused by a depletion of certain neurotransmitters & the mechanism of action of prescription antidepressant drugs is to make more neurotransmitters available - but sometimes along with drug side effects.*

Additionally, tyrosine converts to thyroid hormone & to adrenaline which is produced by your adrenal gland in response to stress. Chronic stress can divert tyrosine to excessive adrenaline production resulting in decreased thyroid & norepinephrine levels, unless you have plenty of tyrosine available for all the functions.*

For tyrosine to properly convert to these substances, or for any amino acid to perform its multiple & almost magical conversions, there must be adequate,pyridoxal-5-phosphate (vitamin B6) as well as certain other vitamins & minerals.*

There are multiple factors leading to depletion of the substances necessary for your brain neurotransmitter production which are detailed in Dr. Slagle's book. Some are excessive stress, sugar, alcohol, recreational drugs, caffeine, long-term junk food, & many prescription medications such as some for hypertension, antibiotics, birth control pills & many others.*

If you are taking any prescription or over-the-counter medicine be sure to check with your doctor and the Physician's Drug Reference to see if depression is a potential side effect. You would be surprised how often it is! If so, talk to your doctor about a change to a non-depressing drug when possible or try to override that effect by following Dr. Slagle's complete & safe program for the natural treatment of low moods.

    Helpful with:
  • Low moods*
  • Stress protection & better functioning during stress*
  • Symptoms of PMS*
  • Improving motivation, drive, concentration*
  • Maintaining heathy thyroid levels*
  • Fatigue*
  • Maximizing peak mental or athletic performance*

Contraindicated with known or pre-existing melanoma, as tyrosine can also convert to melanin.
Contraindicated when you have an over-active thyroid, which is much less common than an underactive thyroid.
Safe to use during pregnancy.*


  • With meals-be sure to be taking a good multi vitamin mineral.
  • With breakfast-take 1-2 Co-Enzyme B Complex
  • With dinner-take 1 Vitamin C
  • 1-3 doses 2400mg - 3000mg per dose daily 1st dose upon arising on an empty stomach at least 1/2 hr or more before eating but may use with fruit - just no protein. If not adequate results after 1 week can add 2nd dose mid morning between meals. 3rd dose can be added mid-afternoon between meals if not adequate results after 1 more week.
  • With each dose of tyrosine take 1 Pyridoxal-5-Phosphate.

Other Ingredients: Gelatin


* These statements have not been evaluated by the U.S.Food & Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease

L-Tyrosine 250 capsules - 500 mg $ 48.00
L-Tyrosine Powder 150 gms $ 39.35
Tyrosine Powder 150 gm/ 1000 mg per 1 tsp $ 39.35

L-Tyrosine 250 capsules - 500 mg
Element Amount %Daily Allowance% Serving Size
(Crystalline Amino Acid)
1 capsule
L-Tyrosine Powder 150 gms
Element Amount %Daily Allowance% Serving Size
L-Tyrosine 2000 mg 2 tsp
Tyrosine Powder 150 gm/ 1000 mg per 1 tsp
Element Amount %Daily Allowance% Serving Size
(Crystalline Amino Acid)
1000 mg 1tsp

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