Marshawn Lynch continued to display affection for his community Friday when delivering two 55-gallon drums of hand sanitizer to the UCSF Mission Bay campus.

It has been an active week for the Oakland native and former Raiders running back who spent Tuesday and Wednesday (his 34th birthday) in the East Bay handing out tens of thousands of face masks to citizens in need, including at hospitals, food banks and shelters.

“Marshawn is the magnet,” said Jeremy Castro, who’s Lynch’s “mission partner” and has been at his side during the endeavor. “He makes things happen. He instigates action.”

Castro runs an apparel company out of San Leandro, Brand Marinade, that helps stock Lynch’s Beast Mode apparel and has converted it into a mask factory.

The drums of sanitizer were acquired from a Modesto manufacturer and the masks from a supplier Castro works with in China. He and Lynch delivered 40,000 masks to East Bay folks Tuesday and Wednesday, and Castro is in the process of obtaining three more drums of sanitizer and 40,000 more masks.

“A bunch of regular people activated this very unique supply chain,” Castro said. “What we’re doing now is getting this into the streets.”

At Friday’s dropoff, Lynch and Castro worked in conjunction with Elina Kostyanovskaya, a graduate student in the UCSF developmental and stem cell biology program, and actor-activist Jamal Trulove.

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Kostyanovskaya gave Lynch a tour of the lab, credited him for his involvement and said she hopes it’ll help raise awareness for her Science Policy Group.

She said the group has been producing 250 to 300 gallons of hand sanitizer every week with the intention of distributing it to people in three Northern California prisons (including San Quentin) and San Francisco and San Mateo jails, as well as people in public housing complexes.

Kostyanovskaya said the sanitizer is bottled and labeled in accordance with World Health Organization protocol and contains pamphlets explaining COVID-19. To date, 2,300 bottles have gone to underserved communities and 12,900 bottles to incarcerated people, with more to come.

“We’re short on manpower, short on funding,” Kostyanovskaya said. “With Marshawn’s donation, having sanitizer we don’t have to produce will be helpful in lifting those loads. It will benefit people who don’t always have the luxury of social distancing.”

The Science Policy Group is not funded by the hospital, and Kostyanovskaya encouraged those interested in making donations to visit the GoFundMe link or contact her at elina.kostyanovskaya@ucsf.edu to make a tax-deductible donation.

Trulove, who served time in prison after wrongly being convicted of murder in San Francisco, has been assisting in the cause as a liaison for underserved communities.

“I know what it’s like to be in prison and not being paid attention to and the conditions in there,” Trulove said. “We’re trying to bring awareness to the underserved populations such as project housing, plus the prison communities.”

Trulove said he’s hoping for a Michael Jordan effect — if people in these communities see others wearing masks and sanitizing, they’ll want to do so as well.

John Shea is a San Francisco Chronicle staff writer. Email: jshea@sfchronicle.com Twitter: @JohnSheaHey