Pure Encapsulations Collagen JS
Brand: Pure Encapsulations · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that Pure Encapsulations Collagen JS, as labeled, contains the mineral calcium. Our assessment is that while calcium is essential for your health, this supplement’s value depends entirely on whether you need additional calcium beyond what you get from food. Data not available on the specific dose of calcium in this product, so you must check the label carefully before use [NIH ODS].
How it works
Calcium plays a critical role in your body as a bone mineralizer — it supports bone density and mineral deposition. It also acts as a neuromuscular relaxant, helping your muscles relax and your nerves signal properly [NIH ODS]. Think of calcium as the structural support for your skeleton and a calming signal for your muscles.
Safety profile
FDA has received 592,059 total adverse event reports across all supplements, though data not available for this specific product alone. Regarding calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High levels of calcium in your blood and urine can cause 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] [FDA data].
Our recommendation
Check the label for the exact calcium dose and compare it to your total daily intake from food and other supplements. Calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. If you take any of these, separate your calcium dose by at least two hours. Data not available on the collagen content or its specific benefits in this product. Our recommendation: consult your healthcare provider before starting, especially if you have kidney concerns or take prescription medications [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Pure Encapsulations |
|---|---|
| Serving Size | |
| Contents | 120.0 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