Steroid isolation , depending on context, is the isolation of chemical matter required for chemical structure elucidation, derivitzation or degradation chemistry, biological testing, and other research needs (generally milligrams to grams, but often more  or the isolation of "analytical quantities" of the substance of interest (where the focus is on identifying and quantifying the substance (for example, in biological tissue or fluid). The amount isolated depends on the analytical method, but is generally less than one microgram.  [ page needed ] The methods of isolation to achieve the two scales of product are distinct, but include extraction , precipitation, adsorption , chromatography , and crystallization . In both cases, the isolated substance is purified to chemical homogeneity; combined separation and analytical methods, such as LC-MS , are chosen to be "orthogonal"—achieving their separations based on distinct modes of interaction between substance and isolating matrix—to detect a single species in the pure sample. Structure determination refers to the methods to determine the chemical structure of an isolated pure steroid, using an evolving array of chemical and physical methods which have included NMR and small-molecule crystallography .  : 10–19 Methods of analysis overlap both of the above areas, emphasizing analytical methods to determining if a steroid is present in a mixture and determining its quantity. 
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Ostashred contains Ostarine. Just finished a 7 weeks cycle on a Ostarine containing product (4 week bulk, 3 weeks cut). Can’t say I gained more muscle than what’s expected after one month bulk but I don’t think I lost much during the cut. What it really helped with and the reason I took it: it really accelerated the healing of my damaged knee. My dose was 10mg/day for one week and 20mg/day after that. In the first two and a half weeks I used no estrogen blocker, which wasn’t a very good idea, felt like shit. My erection strength and libido were okish but I’d say my T level dropped quite dramatically. No idea how much, blood work is next week. Feeling great one week after stopping. So, in conclusion: not much muscles gained or lost, faster recovery after lifting, a bit more weight lifted, really improved my knee. My first cycle and except for healing purposes, I see no point in it