Bronson L-Lysine Defense 1500 mg
Brand: Bronson · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that Bronson L-Lysine Defense 1500 mg is a targeted supplement, but a key concern is that the primary active ingredient listed in our data is Calcium, not L-Lysine. For general immune and skin health support, calcium plays a role in nerve signaling and muscle function, but it is not a direct substitute for L-Lysine [NIH ODS]. You should verify the label to ensure this product contains the L-Lysine you are seeking, as the available data does not confirm this.
How it works
If this product provides calcium, think of it as a mineral regulator for your body. It supports bone mineralization and helps with neuromuscular relaxation, which is essential for proper muscle and nerve function [NIH ODS]. However, this mechanism does not match the typical antiviral or immune-support role of L-Lysine. Data not available on how this specific formula works for L-Lysine purposes.
Safety profile
The FDA has received a total of 592,059 adverse event reports for all supplement products, but specific report counts for Bronson L-Lysine Defense 1500 mg are not available [FDA data]. For calcium, high intakes can cause constipation, nausea, and abnormal heart rhythms, and may increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can also reduce the absorption of antibiotics and thyroid medication [NIH ODS].
Our recommendation
Start by carefully reading the product label to confirm it contains L-Lysine, as our data lists only Calcium as an ingredient. If you are targeting cold sore prevention or immune support, this may not be the right product. Consult your pharmacist to verify the formula. If you proceed, take it with food and separate from other medications by at least two hours to avoid absorption issues [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Bronson |
|---|---|
| Serving Size | |
| Contents | 90.0 Vegetarian Capsule(s) |
| Market Status | On Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide