Does the patch also protect from the sun? Or would you need sun cream underneath them?

The main function of these clear patches is waterproof and sweatproof continuous blood glucose monitoring protection, which can meet the needs of many quantities and different scenarios you use during swimming, showering and sports, sweating.

What is the difference between the pink and the blue patches please

There is no difference. The pink and blue strips are taken off as the top layer (kind of like when you get a screen cover for your phone) you will be left with a flexible clear patch whether pink or blue!

Will patch stay on in the heat or sauna?

The patch is waterproof, using our 2-layer pack you can freestyle swim, all water activities can last 10 days and can withstand more than 10 showers; No matter what sport you do, it will keep your sensor from being disturbed by sweat.

Units	1.00 Count
Brand	Nuanchu
Format	Patches
Country of origin	China

48 Pack Sensor Covers Compatible with Freestyle Libre 1/2/3,Waterproof CGM Sensor Patches, Glucose Monitor Protector Long Lasting Without Hole (Blue)

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