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David Downs's Bio Image

David Downs directs news and lifestyle coverage as the California Bureau Chief for He's written for WIRED, Rolling Stone and Billboard, and is the former cannabis editor of the San Francisco Chronicle, as well as the author of several cannabis books including 'Marijuana Harvest' by Ed Rosenthal and David Downs. He co-hosts The Hash podcast. TW: @davidrdowns | IG @daviddowns

Articles contributed to Leafly

Amid vape pen lung disease deaths: What exactly is vitamin E oil?

After six suspected vape pen deaths, chemists and doctors explain why vitamin E oil is a problematic additive.

David Downs - September 11, 2019

Regulators, Industry React to Vitamin E-Tainted Vape Carts

New York subpoenas chemical makers. Gaps emerge in testing programs in Oregon, California, and Washington.

David Downs - September 9, 2019

Vape cart additive makers pull products as others go dark

As officials focus on vape carts tainted with vitamin E oil, the website for Honey Cut, a diluent named by Leafly last week, just vanished.

David Downs - September 6, 2019

NBA All-Star Gary Payton’s New Cookies Strain Heating Up California

The worlds of cannabis and pro sports are uniting like never before.

David Downs - September 5, 2019

Vape pen lung disease has insiders eyeing misuse of new additives

People vaped illicit THC carts last year without ending up in the hospital. So what has changed? One possibility: thickeners.

David Downs - August 30, 2019

Illicit cannabis vape carts hospitalized 7 in California, doctors say

A rare public health warning was issued to avoid illicit market THC e-cigarettes.

David Downs - August 16, 2019

How does your state rate for medical marijuana in 2019?

Americans for Safe Access finds Oregon and Illinois have the best patient programs. The worst? Texas and the Southeast states.

David Downs - August 14, 2019

Legal Cannabis Mellowed Outside Lands Megafestival

Inside the safest, most secure cannabis sales and consumption in Golden Gate Park history.

David Downs - August 12, 2019