And of course, skin is a physical barrier, right
According to their website, Your body emits heat, including heat in the infrared spectrum
10.3390/ijms23020905 67 JiangP.WeiK.ChangC.ZhaoJ.ZhangR.XuL.et al (2022)
Vitamin C helps regenerate reduced glutathione from its oxidized form, while glutathione supports vitamin C recycling within cells
however, no change in medication or dose was allowed
Since ingredients like retinoids and high-dose salicylic acid are off limits [due to the potential to cause developmental defects], she recommends looking for gentler exfoliating acids like lactic, glycolic, and azelaic acids, as well as sulfur-based acne spot treatments as alternatives to help prevent and treat breakouts