BioStacks
Other Ingredients (7)
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Croscarmellose SodiumDisintegrant
Cross-linked cellulose derivative used as a superdisintegrant
Gum AcaciaBinder
Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
PolyvinylpyrrolidoneBinder
A synthetic polymer used as a tablet binder and film former
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
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 one to four caplets daily on an empty stomach.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$17.99
Near the median of 41 tyrosine supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.