oxygen penetrates skin up to 375 µm deep, reaching live dermal layers
Atmospheric oxygen (and by extension, transdermal gases) penetrates the skin to a depth of approximately 266–375 µm under normal conditions, supplying the entire epidermis and parts of the dermis directly through the skin surface.
What this means for you
Your skin isn't just a barrier — it actively absorbs oxygen from the outside in. When oxygen reaches the deeper living layers of your skin, it supports the cellular activity that keeps skin resilient, healthy-looking, and able to recover from daily stress. This is the biological basis behind why topical oxygen exposure is linked to skin vitality.
The published research
Journal of Physiology (2002), 538.3, pp. 985–994 DOI: 10.1013/jphysiol.2001.013067
· 2002
This page describes a documented finding about the underlying wellness technology. It is not a marketing claim about any specific device. For information about HOCATT specifically, visit hocatt.com.