Crystal Star Women's Healthy Libido

Our assessment

The evidence shows that Crystal Star Women's Healthy Libido contains calcium, a mineral with a well-established role in bone health. However, the data provided does not include any specific studies or clinical trials on this product or its effect on female libido. Our assessment is that the product's name implies a benefit for which we have no supporting evidence from the data provided. The primary ingredient, calcium, is not typically associated with sexual health [NIH ODS].

How it works

Calcium is a master regulator for bone mineralization, helping to support bone density and mineral deposition. It also plays a critical role in neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS]. While these are essential bodily functions, the data does not link these mechanisms to the stated goal of supporting healthy libido.

Safety profile

Data not available for specific side effects of this product. The FDA has received a total of 592,059 adverse event reports across all products, but a breakdown for this specific supplement is not provided. For calcium, some research suggests that high intakes might increase the risk of heart disease and prostate cancer. 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].

Our recommendation

We cannot recommend Crystal Star Women's Healthy Libido for its intended purpose based on the data provided. The evidence does not connect its ingredient, calcium, to libido support. If you are considering this product, you should be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Consult your healthcare provider before starting any new supplement.

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