Introduction:
The gel scalp cooling cap is a tool used to prevent hair loss in patients receiving chemotherapy treatment. This device works by cooling the scalp, which helps protect hair follicles from damage caused by chemotherapy drugs. Below, we detail how this cap works step by step.

1. Placement of the Gel Cooling Cap
The first step in using the gel scalp cooling cap is placing it on the patient’s head. The cap is designed to fit comfortably on the scalp, covering the entire surface evenly. It’s made with gel compartments that adapt to the shape of the patient’s head, providing complete and effective contact.

2. Cooling of the Gel Cap
Before use, the gel cap is cooled in a freezer or specialized refrigeration device until it reaches an optimal temperature, typically around -20°C to -25°C. Once the cap has reached the desired temperature, it’s placed on the patient’s head. The gel inside the cap maintains the low temperature for the necessary duration of the chemotherapy treatment, providing continuous and uniform cooling.

3. Scalp Vasoconstriction
The reduction in scalp temperature causes a physiological response known as vasoconstriction. This is the constriction of blood vessels in the scalp region, which reduces blood flow to the hair follicles. Vasoconstriction is a natural mechanism of the body to conserve heat, but in this case, it’s used to limit the amount of chemotherapy drugs that reach the hair follicles.
4. Reduction of Chemotherapy Absorption
As blood flow in the scalp decreases due to vasoconstriction, the amount of chemotherapy drugs reaching the hair follicles also decreases. These drugs are designed to attack rapidly growing cells, such as cancer cells, but they also affect other rapidly growing cells in the body, including hair cells. With less chemotherapy reaching the hair follicles, damage to these cells is reduced.
5. Protection of Hair Follicles
Finally, reducing chemotherapy absorption protects hair follicles from damage. Hair follicles are complex structures containing cells that rapidly divide to produce new hair. By being less exposed to the toxic effects of chemotherapy, these cells can continue functioning more normally, resulting in less hair loss.

Additional Benefits and Considerations
- Patient Quality of Life: Hair preservation can have a significant impact on patient quality of life, helping to maintain a familiar physical appearance and reducing the emotional stress associated with hair loss.
- Side Effects: While the gel cooling cap is generally safe, some patients may experience side effects such as headaches, discomfort, or a feeling of extreme cold on the scalp. These effects are usually temporary and manageable.
- Variable Effectiveness: The effectiveness of the cooling cap may vary depending on the type of chemotherapy and individual patient response. Not all types of chemotherapy are equally affected by scalp cooling.
Conclusions
The gel scalp cooling cap is a significant innovation in the care of patients receiving chemotherapy, offering an option to reduce hair loss and improve quality of life during treatment. Its operation, based on reducing scalp temperature and consequent vasoconstriction, helps protect hair follicles from the harmful effects of chemotherapy. As technology and application methods continue to improve, the effectiveness and comfort of scalp cooling caps will continue to increase, providing hope and relief to many patients.
