Herb Pharm Horsetail
Brand: Herb Pharm · Form: LIQUID, SUPPLEMENT FORM [E0165]
Our assessment
The evidence shows that horsetail supplements, like Herb Pharm Horsetail, are primarily used for their potential to support bone health due to their natural silicon content. However, the data provided on this specific product is limited. Our assessment is based on the calcium content, which is a key mineral for bone density. The data confirms that calcium supports bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a building block for your bones. It works through bone mineralization, helping to maintain bone density and mineral deposition. It also plays a role in neuromuscular relaxation, supporting proper muscle and nerve signaling [NIH ODS]. For horsetail specifically, data on its mechanism beyond silicon content is not available.
Safety profile
Safety data is critical. The FDA received a total of 592,059 adverse event reports across all supplements, but specific report counts for horsetail are not available in the data provided. For calcium, which may be a component of this product, high intakes can cause side effects including poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Some research also suggests high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
Our recommendation
We recommend you consult your healthcare provider before starting horsetail, especially if you take medications. Calcium can reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Given the limited specific data for this product, it is prudent to rely on well-studied calcium sources and discuss any supplement use with your doctor.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Herb Pharm |
|---|---|
| Serving Size | |
| Contents | 1.0 fl. Oz. 29.6 mL |
| Market Status | Off 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