GNC Hair, Skin & Nails Program Avanced Collagen Formula
Brand: GNC · Form: CAPSULE [E0159]
Our assessment
Our assessment: GNC Hair, Skin & Nails Program Advanced Collagen Formula contains calcium, which supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, the evidence shows you should be cautious about calcium intake from supplements, as high levels can pose significant health risks. The specific amounts of calcium in this formula are not provided in the data, so we cannot assess whether the dose is appropriate for you.
How it works
Calcium acts as a master regulator for your body. It supports bone density through mineralization and helps your muscles relax and nerves signal properly [NIH ODS]. While collagen is often marketed for skin and nails, the data only provides information on calcium's role in this formula.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all dietary supplements [FDA data]. For calcium specifically, high intakes may increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium 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]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Our recommendation: Before taking this product, check your total calcium intake from all sources — including food and other supplements. If you are on any of the medications listed, take calcium supplements at least two hours apart. Since the exact calcium content per serving is not available in the provided data, consult the product label and your healthcare provider to determine if this formula is right for you.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 30.0 Capsule(s) 30.0 Day Program |
| 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