Pure Encapsulations Collagen JS
Brand: Pure Encapsulations · Form: CAPSULE [E0159]
Our assessment
The evidence shows that Pure Encapsulations Collagen JS, per the label, contains the ingredient Calcium. Our assessment is that while Calcium is essential for bone health, you need to be very careful with dosing. The data does not provide a specific serving size for this product, so you must follow the label instructions exactly to avoid excessive intake [NIH ODS].
How it works
Think of Calcium as a structural building block and a cellular messenger. It supports bone mineralization, meaning it helps deposit minerals into your bone matrix for density and strength. It also plays a role in neuromuscular relaxation, helping your muscles and nerves signal properly [NIH ODS].
Safety profile
FDA has received a total of 592,059 adverse event reports across all supplement categories. For this specific product, data on side effects is not available. However, for Calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High levels in the 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
Our recommendation is to strictly follow the label dosing for Pure Encapsulations Collagen JS. Because Calcium can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin, you should take this supplement at least two hours apart from those drugs [NIH ODS]. Start with the lowest effective dose and never exceed the labeled amount.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Pure Encapsulations |
|---|---|
| Serving Size | |
| Contents | 120.0 Capsule(s) |
| 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