Can Weed Help Your Hair Grow?

Liz Filmer
01 Aug 2024

Many people believe that using creams or oils that contain cannabis extract on your scalp can help promote hair growth. However, is there any truth in this idea? Here's what science says.


Various cannabinoids or compounds such as THC and CBD. These are compounds that are constantly under study for their multiple health benefits. However, their effects on hair growth are still not well-documented or proven. What we do know is that the potential benefits of cannabis include the following:

  1. Anti-inflammatory: CBD is well known for its potential anti-inflammatory effects, which may assist in reducing scalp inflammation. A healthy scalp is essential for hair growth, as inflammation can hinder the natural hair growth cycle.
  2. Stress lowering: Cannabis is frequently utilised to try and relieve stress and anxiety. Stress is a general factor in hair loss so reducing stress levels may indirectly reinforce natural hair growth.
  3. Enhanced blood circulation: Some people think that the application of cannabis-infused oils may improve blood circulation to the scalp which in turn may in turn potentially promote hair growth.

Is there any scientific evidence to back this up?

There is no concrete evidence to indicate that cannabis or any of its compounds can directly promote hair growth. While there may be some benefits for overall scalp health, cannabis at present is not considered to be a miracle cure for hair loss. The application of THC-heavy products to the scalp is unlikely to result in substantial enough absorption that hair growth would be influenced. Most of the current research available on THC relates to its psychoactive effects when it is inhaled or ingested.

If you do decide to try cannabis-infused hair products, always make sure that they come from a reputable source. Poor-quality products can contain toxic additives that could be bad for your hair or scalp. As with any skin product, always test a tiny amount on your skin before you apply it to your scalp this is to ensure that you do not have an allergic reaction to any of the ingredients.

While cannabis has shown promise in various areas of health, the evidence supporting its effectiveness for hair growth is limited. The idea that cannabis can make your hair grow remains mainly anecdotal. Focusing on a healthy lifestyle, diet, good hair care, and stress control are more dependable ways to support natural hair growth and good scalp health.

If you are experiencing hair loss, it is best to consult a healthcare professional to look at proven treatments and the possible underlying causes.

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Liz Filmer