Herb Pharm Periwinkle
Brand: Herb Pharm · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
The evidence shows that the active ingredient in this product is calcium, a mineral essential for bone health [NIH ODS]. However, based on the data provided, we cannot confirm the specific benefits or risks of the "Herb Pharm Periwinkle" product itself, as no proprietary studies or ingredient-specific data for periwinkle are included in the provided information. For the calcium component, the data supports a role in bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as a structural building block for your skeleton. It supports bone density by depositing minerals into bone tissue and also helps your muscles relax and nerves signal properly [NIH ODS]. The provided data does not include any mechanism of action for periwinkle, so we cannot comment on that ingredient.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplement categories [FDA data]. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer [NIH ODS]. Symptoms of excessive calcium include constipation, nausea, weight loss, extreme tiredness, frequent urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data not available for side effects specific to periwinkle.
Our recommendation
Because the data provided does not include any studies or adverse event reports specific to "Herb Pharm Periwinkle," we cannot make a confident recommendation for this product. If you are considering this supplement for calcium, be aware of the potential risks and medication interactions [NIH ODS]. We recommend discussing any supplement with your healthcare provider, especially if you take prescription medications or have a history of kidney or heart conditions.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Herb Pharm |
|---|---|
| Serving Size | |
| Contents | 4.0 fl. Oz. 120.0 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