I ordered a seven-product bundle at the height of summer heat and was worried my Eminence goodies would be worse for the wear, so I added this liner for added protection. I was amazed how well it worked. All products arrived at room temperature despite being shipped and traveling in nearly 100 degree heat for three days. Definitely recommend purchasing this if buying products during the summer!

To me, this is worth the extra cost to be certain my products arrive at full strength rather than potentially weaker due to the heat. The thermal liner works well even in the hottest months of the year. I wish more companies offered this shipping option.