New Roots Cranberry 600mg, Proanthocyanidin Rich Whole Cranberry Extract, Urinary Tract Health, 60 Capsules Headache Relief N acetyl L tyrosine is an amino N acetyl L tyrosine is an amino acid that’s a precursor to important neurotransmitters (brain chemicals) such as dopamine and norepinephrine and to the thyroid hormone thyroxine (T4) The nutrient needs of men and women can be vastly different – the same can be said for people under forty versus over forty Super potent cranberry extract New Roots Cranberry concentrate is a super potent extract ideal for treatment and prevention of urinary tract and bladder infections