Crystal Star Women's Libido

Our assessment

The evidence shows that the primary active ingredient in Crystal Star Women's Libido is calcium, a mineral that supports bone density and muscle relaxation [NIH ODS]. However, there is no data available to support a specific benefit for libido or sexual function. Our assessment: based on the provided data, this product cannot be recommended for its intended purpose, as its core ingredient does not address female libido.

How it works

Calcium works by supporting bone mineralization and neuromuscular relaxation [NIH ODS]. Think of it as a structural and signaling mineral that helps your bones stay dense and your muscles relax after contracting. While these functions are essential for overall health, they do not directly influence sexual desire or arousal.

Safety profile

Based on FDA data, there have been 592,059 total adverse event reports across all supplements [FDA data]. For calcium specifically, high intakes may 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]. Calcium can also reduce absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Data not available to support using Crystal Star Women's Libido for its stated purpose. If you are seeking to support bone health, calcium is a well-researched option, but you should consult your doctor before adding any supplement, especially if you take prescription medications [NIH ODS]. For libido concerns, please speak with your healthcare provider about more targeted, evidence-based approaches.

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