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Research indicates that individuals of differing blood groups can have extremely different responses to the same occasional stressors.

Type Os with mild to moderate stress benefit from the amino acid tyrosine (which can boost dopamine levels), and Arginine. Catechol also features the adaptogen Rhodiola rosea, which helps to modulate the effects of excess adrenaline.

This formula is more specific to types O and AB, but can be used by other blood types as well.


60 Capsules

Label Details

Label Details

Servings Per Container: 60

1-2 capsule twice daily

L-Tyrosine 600 mg

Rhodiola Rosea 200 mg

Folic acid 100 mg

L-Methionine 50 mg

Trimethylglycine (betaine) 50 mg

Vitamin C (magnesium ascorbate) 40 mg

Vitamin B12 (methylcobalamin) 25 mg

Magnesium (from ascorbate) 20 mg

Vitamin B6 (pyridoxine HCl) 15 mg

Selenium (L-selenomethionine) 15 mg

Coenzyme Q10 3 mg

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