The 411 - Cow Lick

The idea that letting a cow lick your head will regrow hair is an old folk remedy—but there is no scientific evidence that it works. 🐄

The belief likely arose because a cow's tongue is extremely rough. It's covered in tiny, backward-facing projections called papillae, which help the animal grip and tear grass. When a cow licks skin, it acts like a very coarse brush, removing dead skin cells.

Some people believed this rough licking:

• Stimulated blood flow to the scalp.
• "Awakened" dormant hair follicles.
• Removed dead skin that was blocking hair growth.

However, none of these claims have been shown to cause hair to regrow.

In fact, repeated cow licking could be harmful:

• The rough tongue can irritate or even damage the scalp.
• It may cause abrasions or sores.
• A cow's mouth naturally contains bacteria that could lead to infection if the skin is broken.

Hair loss is usually caused by factors such as:

• Genetics (male or female pattern baldness).
• Ageing.
• Hormonal changes.
• Certain illnesses or medications.
• Nutritional deficiencies.
• Stress.

If hair follicles are still alive, treatments such as Minoxidil or Finasteride (for appropriate individuals) can sometimes slow hair loss or stimulate regrowth. If the follicles have been destroyed and replaced by scar tissue, no amount of scalp stimulation—including cow licking—will make hair grow there again.

So, while it's an amusing piece of rural folklore that has been passed down for generations, there's no evidence that a cow licking your head can restore lost hair.

Source: Some or all of the content was generated using an AI language model