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How Do Cooling Sanitary Napkins Work? – Gentle Cooling Is Not Just Adding Mint
How Do Cooling Sanitary Napkins Work? – Gentle Cooling Is Not Just Adding Mint
Cooling Is About Relieving Stuffiness, Not Making You Feel Cold
The most common discomfort women experience during their period is stuffiness, dampness, and stickiness. This is especially true in hot regions like Africa and Southeast Asia. The purpose of cooling technology is not to make the skin feel icy, but to provide a gentle cooling sensation that counteracts the feeling of being stuffy. It is very different from the strong, stinging sensation of menthol.
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✅ How Is the Cooling Effect Achieved? Two Main Methods
Method 1: Microencapsulation technology
Cooling agents (such as menthyl lactate, WS-23, or WS-3) are encapsulated in tiny microcapsules and attached to the top sheet or the acquisition distribution layer of the sanitary napkin. When the pad is used, body heat, moisture, and friction gradually break the capsules, releasing the cooling agent and producing a sustained, gentle cooling sensation. The advantage of this method is that the cooling lasts for several hours and is released continuously, so the skin does not feel any stinging.
Method 2: Directly embedding into the top sheet fibers
Cooling agents are mixed into the spinning solution and made into nonwoven fabric fibers. The entire top sheet then has built in cooling properties without any post treatment spraying. The advantage is uniform and stable cooling, but the disadvantage is that it requires specialized fiber modification technology, which increases cost.
Common Skin Safe Cooling Ingredients
Menthyl lactate: Much milder than menthol, no irritating odor, long lasting cooling. It is a commonly used ingredient in hygiene products.
WS-3, WS-23: Synthetic cooling agents with no odor, pure cooling sensation, and no burning feeling on the skin. They are often used in high end cooling products.
Microencapsulated peppermint oil: Natural origin, but the cooling effect is weaker and the cost is relatively high.
These ingredients are safe for skin, with usage levels typically between 0.1% and 1%, and they must pass skin irritation tests.
✅How Do Cooling Sanitary Napkins Compare to Regular Ones?
A good cooling sanitary napkin must first meet basic performance standards: absorption speed, dryness, leak protection, and breathability. The cooling effect is an added value on top of that. We have tested this: a sanitary napkin with microencapsulated cooling agents showed no difference in absorbency, rewet, or surface dryness compared to a regular pad, but user comfort scores were more than 30% higher – especially in hot and humid conditions.