another good example of what youre talking about is Ol' Ballsack, or Maria Abromavic. Maria is unnaturally old for her looks, but she aint no JLo, so you can see how young blood works there, or with ballsack, same thing he's just not as decrepit as he would be without it, but it doesn't make him look like he's reversing time or anything. The Pedostas. It looks like without any other strategies, just the blood components alone, it just sort of makes them look healthier for their age, without taking years off.