Oxygen pods are used in oxygen facials to deliver concentrated oxygen and active ingredients to the skin. Different pods target specific skin concerns, such as:
Hydration
Brightening
Anti-Aging 
Acne Control
 
Primer
A primer for oxygen facials is usually a hydrating or oxygen-boosting mist/gel applied before the treatment. It helps prep the skin for better absorption of oxygen and serums. 
 
Serum
Oxygen facial serums are applied post-treatment to seal in moisture and nutrients.