Why Does My Hair Go Greasy After I Wash It? Preventing Oily Hair

Medically reviewed by Dr. Bilal Khan M.B.B.S.
Written by Our Editorial Team
Last updated

Do you struggle with greasy hair after washing it? There are multiple reasons that can cause this issue, such as hair care routine, sebum overproduction, environmental factors, or underlying health conditions. In this article, we will explore these causes and provide practical solutions to help you maintain clean, healthy hair.

Why does my hair go greasy after I wash it?

There are several factors that can contribute to your hair becoming greasy after washing, including:

  • Sebum overproduction: Your scalp produces a natural oil called sebum that helps to moisturize and protect your hair. However, excessive sebum production can lead to greasy hair.
  • Hair care routine: The choice of shampoo and conditioner, as well as the frequency of washing, can affect the oiliness of your hair. Washing too often or using the wrong products can contribute to greasy hair.
  • Environmental factors: Pollution, humidity, and other environmental factors can cause your hair to become greasy after washing.
  • Underlying health conditions: Hormonal imbalances, such as those caused by pregnancy, menopause, or thyroid problems, can lead to an increase in sebum production and greasy hair.

How to prevent greasy hair after washing

To prevent your hair from becoming greasy after washing, consider the following tips:

  • Choose the right shampoo and conditioner: Opt for products specifically designed for oily hair or those that are gentle and sulfate-free.
  • Wash your hair less frequently: Washing your hair too often can strip it of its natural oils, causing your scalp to produce more sebum. Try washing your hair every other day or even less frequently if possible.
  • Rinse with lukewarm water: Hot water can stimulate sebum production, so rinse your hair with lukewarm water instead.
  • Use a clarifying shampoo: Occasionally use a clarifying shampoo to help remove excess oil and product buildup from your hair.
  • Manage stress: High levels of stress can lead to an increase in sebum production, so practice stress management techniques like meditation, exercise, or deep breathing.
  • Maintain a healthy diet: Consuming a balanced diet rich in nutrients can help regulate sebum production and prevent greasy hair.


Understanding the causes of greasy hair after washing can help you take the necessary steps to prevent it. By choosing the right hair care products, washing your hair less frequently, rinsing with lukewarm water, and managing stress, you can keep your hair looking clean and fresh for longer.

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Dr. Bilal Khan M.B.B.S. graduated from the Jinnah Sindh University in Karachi. He'll take the official medical licensing program in the US (USMLE) in September 2023. Bilal has a passion for research and has extensively fact-check and medically review articles under his name to make sure you have the most accurate information.