If you want to get started with Sasha-16, and you want to make sure to use or get the correct DAZ-exclusive products, then you wish to acknowlegde the relative products' exact names.

I provide relevant details, along with currently relative weblinks.
Required
-Victoria 4.2 Base: https://www.daz3d.com/victoria-4-2-base
-Victoria 4.2 Morphs++: https://www.daz3d.com/victoria-4-2-morphs
Optional
-Aiko 4 Base: https://www.daz3d.com/aiko-4-base
-Stephanie 4 Elite Base: https://www.daz3d.com/stephanie-4-elite-base
-V4 Elite Body Shapes: https://www.daz3d.com/v4-elite-body-shapes
-Victoria 4.2 Muscle Morphs: https://www.daz3d.com/victoria-4-2-muscle-morphs
-Morphia: https://www.daz3d.com/morphia
-Victoria 4.2 Creature Creator Morphs: https://www.daz3d.com/victoria-4-2-creature-creator-morphs
Another optional - uncertain of the item in question
-V4 Ultra Aging Morphs: https://www.daz3d.com/v4-ultra-aging-morphs
-1-Click V4 Age Injector: https://www.daz3d.com/1-click-v4-age-injector
Uncertain if, Sasha-4 supported specifically too?
-the Girl 4 Base: https://www.daz3d.com/the-girl-4-base

Please verify or correct, Karina. Thank you, in advance!

Also, I would like to understand what exactly the changes will be, when any of those Injections are executed. For example, when I injected Morphia, I could find out through the Sasha-16 Manual, that new Morph Dials are affected, whose are to be found when Body is targeted, under >>> SHAPE/CDI Morphs. And for all other body parts, new Morph Dials appeared at the very bottom of each targetable Body element's Parameters Palette. An information like this, I want to be able to acknowledge for every one of the Injections of the relevant products specifically supported by Sasha-16. I want to understand what it does, what it changes, what it adds, what it may remove, where I can expect a recognizable change after an Injection.

Personally, I was very unsure whether my Injections have been applied at all, since my mouse double-clicks and releases holded clicks for an unknown reason by about 25%. At one point, I shall part with my favourite mouse, I guess. Poser 11 does not seem to give any confirmation after an Injection was applied - most unfortunately. There is no right-click dropdown-select command for Injections either, it seems.