My teenage son has started smoking weed and I'm not happy about it, since I'm not a believer in "forbidding" thing over "convincing" I have tried to bring the topic to medical level, and he's had a convincing counter-argument every time, but since he started his acne has gone bad so it was easy to blame it on weed, but I cannot find any conclusive answer.

Medical News Today's answer is very confusing:

It is unlikely that smoking weed causes acne. However, some people who already have acne might find that it worsens or improves if they smoke marijuana

It lists potential side effects:

possible link between smoking weed and a rise in testosterone levels

No-one mentions acne in this question Is smoking weed bad for your health?

This skin treatment site claims:

While not definitive, several indirect links exist between marijuana use and acne

and even goes to say:

Some compounds found in marijuana, known as cannabinoids, have been shown to have anti-inflammatory properties. This discovery led some to claim that smoking weed could even help treat acne.

This claim of CBD helping acne is backed up by Health News:

Topical CBD may help acne by decreasing inflammation, the proliferation of skin cells, and sebum (oil) production, all of which contribute to acne formation

Another skin treatment site states:

Marijuana indirectly causes acne because weeds can make you unbelievably hungry and can change your hormones.

A medical study part of Research on the Cannabinoid Receptors Pharmacology explores:

the effect of terpenoids, cannabimimetic ligands, beyond the Cannabis plant in different pathological conditions, such as Herpes infection, diabetic retinopathy, psoriasis, asthma, AD, seizures, ischemic stroke, and others

Terpenoids, Cannabimimetic Ligands, beyond the Cannabis Plant

Since I cannot find conclusive studies I tried to rely on first hand experiences and read many other blogs on the subject, and it's always "yes and no". Here are a few:

Does smoking weed cause acne?

  • 4
    This question was falsely flagged as spam by automatic bots, and confirmed by a human, but then someone flagged it (thank you!) and it was rescued. Sorry for the bad first experience, Sajmir.
    – Oddthinking
    Commented Nov 18, 2023 at 23:39
  • By-the-by you can and should not allow him to smoke in your house. It is your house and you don't have to allow anything that goes against your values.
    – Neil Meyer
    Commented Nov 24, 2023 at 6:46
  • I've been conducting a decade long study, population 1, and can so far report no acne issues. ;)
    – Schwern
    Commented May 16 at 17:56
  • "Son, you've convinced me" can go a long way towards building a trusting relationship. And that's more important than acne.
    – Schwern
    Commented May 16 at 18:01
  • I have conducted a single person experiment for approximately 52 years and can report no acne issues.
    – Steve
    Commented May 21 at 11:51


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