BioStacks
Best for
Ingredients (2)
Iodine
100%Dose
225 mcg
Target
150–500 mcg
Form
Premium
L-Tyrosine
100%Dose
500 mg
Target
500–2000 mg
Form
—
Other Ingredients (1)
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
How to Take It
Best taken in the morning
Take in the morning. It competes with other amino acids for uptake, so a protein-heavy meal blunts it.
On an empty stomach
Keep it away from protein-heavy meals
On the label
As a dietary supplement, take 1 capsule, 1-2 times daily, with meals.
Labels usually say “with food” because it's gentler on the stomach, not because it absorbs better. Fasted absorbs more — start there, and switch to a light meal if it bothers you.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$38.00
Pricier than 99% of 38 tyrosine supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.