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Description
Lancet 389 , 23282337 (2017)

Lieu C, Kopetz S
4 Sour cream Sour cream is a fermented milk product created by souring pasteurized cream by lactic acid-producing bacteria (74)
Joanna DukesMcEwan 5 , BVMS (Hons), MVM, PhD, DVC, DECVIMCA (Cardiology), FRCVS 25.1.1

So, if you want to be really professional, dont choose, but combine : You can use a serum that contains both (e.g., Numbuzin No.5 or APLB products)
I think yeah, absolutely. Known side effects of taking synthetic hGH on its own include increased risk of certain cancers and diabetes
