Boxing coaches use Vaseline on a fighter's face to help prevent cuts and abrasions. The Vaseline acts as a lubricant, making the skin more slippery and allowing gloves to slide off more easily during impact, rather than digging into the skin and causing tears. It also helps keep the skin pliable and less prone to drying out, further reducing the risk of cuts. 

Here's a more detailed breakdown:

• Reduces friction:

When a glove makes contact with dry skin, it creates friction, which can lead to cuts and tears. Vaseline acts as a lubricant, reducing this friction and making it harder for the glove to grab and tear the skin. 

• Increases skin elasticity:

Vaseline helps keep the skin moisturized and pliable, making it more resistant to tearing under pressure. 

• Helps punches glance off:

By making the skin more slippery, Vaseline can cause punches to glance off the face rather than landing with full force, potentially reducing the impact and the risk of cuts. 

• Aids in healing:

In addition to its preventative role, Vaseline can also be used to help existing cuts from worsening during a fight. 

Essentially, Vaseline helps minimize the damage caused by punches by reducing friction and increasing skin elasticity, making it a valuable tool for both preventing and managing cuts in boxing. 

• 250 ml packaging