Here is my first order from AAP: Andarine (S4), Ostarine (Mk2866), and GW501516. All three came as liquids in dark unsealed bottles without droppers. I have some droppers that I will mark with appropriate volumes for dosing my research monkey. Does anyone have suggestions on how to store these? Should I refrigerate? Any dosing/stacking recommendations? Test monkey is 5'9" 210 lbs, 14% bf with a few historical AAS cycles, Low-t and currently no TRT or AAS. BTW, shipping was super fast, 4 days and only five days after payment. Very good communication. Will post a detailed review after my monkey has a few weeks on.