Herb Pharm Horsetail
Brand: Herb Pharm · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
The evidence shows that horsetail supplements are often promoted for their calcium content, but the data is very limited. Our assessment: you should be cautious. While calcium is a key mineral for bone health, the specific form and amount in Herb Pharm Horsetail is not clearly established for a therapeutic effect. The data on calcium from NIH ODS provides important context, but it does not specifically validate the use of horsetail [NIH ODS].
How it works
Calcium, which may be present in horsetail, functions as a master regulator for your body. It supports bone mineralization and density, and is essential for neuromuscular relaxation and nerve signaling [NIH ODS]. Think of it as a key component that helps your muscles relax and your nerves send messages properly [NIH ODS].
Safety profile
Based on FDA data, there are 592,059 total adverse event reports across all supplements, but specific data for horsetail is not available. For calcium, high intakes can lead to serious risks including constipation, nausea, weight loss, extreme tiredness, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
We recommend you do not rely on this product as a primary source of calcium. The evidence for horsetail specifically is insufficient, and the risks of unregulated calcium intake are significant. For bone health, stick with established sources of calcium from food or well-studied supplements, and always consult your doctor before starting any new supplement [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Herb Pharm |
|---|---|
| Serving Size | |
| Contents | 1.0 fl. Oz. 30.0 mL |
| 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