Anonymous
Mar 21, 2026
Rating: 5/5
Helps with menstrual cramps
I use these specifically for period pain relief. The gentle, continuous heat is much better than a hot water bottle because I can move around freely while wearing them.
Description
Reviews
| Brand | - |
| Category | Health Supplies / Heat Patches |
| Origin | - |
| Brand | Haishi Hainuo |
| Product Type | Self-Heating Warm Patch |
| Target Area | Lower Back, Abdomen, Shoulders |
| Duration | Up to 10 Hours |
| Max Temperature | Approx. 53°C (127°F) |
| Material | Non-woven Fabric, Iron Powder, Activated Carbon |
| Adhesive Type | Hypoallergenic Pressure-Sensitive |
| Package Quantity | 10 Patches per Box |
| Scent | Unscented |
| Usage Condition | Single Use Only |
Anonymous
Mar 21, 2026
Rating: 5/5
Helps with menstrual cramps
I use these specifically for period pain relief. The gentle, continuous heat is much better than a hot water bottle because I can move around freely while wearing them.
Anonymous
Mar 15, 2026
Rating: 4/5
Good value for money
Compared to other brands, these offer longer duration at a better price point. They don't have any strong chemical smell which I appreciate.
Anonymous
Mar 13, 2026
Rating: 5/5
Must-have for outdoor workers
I work outside in the winter and these patches keep my core warm even in freezing temperatures. Highly recommend sticking them on the lower back area.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable and safe
I was worried about burns, but the temperature stays very comfortable. It warms up quickly after opening the package and maintains a steady heat level.
Anonymous
Mar 04, 2026
Rating: 4/5
Great heat, slight bulk
The heating effect is excellent and lasts about 9 hours for me. The only minor issue is that they are slightly thick under tight clothing, but totally worth it for the comfort.
Anonymous
Mar 04, 2026
Rating: 5/5
Perfect for winter days
These patches are a lifesaver during cold mornings. They stick well to my clothes and provide consistent warmth for the entire workday without getting too hot.
Q: Can these patches be applied directly to the skin?
A: No, these patches are designed to be adhered to the inside of your clothing, not directly onto the skin, to prevent potential irritation or overheating.
Q: What should I do if the patch gets too hot?
A: If you feel the heat is uncomfortable, please remove the patch immediately. Ensure it is placed on loose-fitting clothing rather than tight layers to allow better airflow.
Q: Are these suitable for pregnant women?
A: While the product provides gentle heat, we recommend consulting with a healthcare professional before using any heat therapy products during pregnancy.
Q: Can I reuse the patch if I take it off early?
A: No, these are single-use items. Once the packaging is opened and the ingredients react with oxygen, the heating process cannot be stopped or restarted effectively.
Q: How long does it take for the patch to start generating heat?
A: Once the package is opened and the patch is exposed to air, it typically begins to warm up within 10 to 15 minutes.