Non-medical users of anabolic steroids often “stack” different anabolic steroids over the course of a “cycle” of use. They also administer various ancillary drugs and substances to enhance the desired effects of anabolic steroids or to minimize adverse side effects. The most common liquid (injectable) anabolic steroids encountered in these cases are (oil-based) esters of testosterone (., testosterone cypionate, testosterone enanthate, and testosterone propionate, and a blend of testosterone esters called Sustanon 250) or nandrolone (., nandrolone decanoate). Also popular are Equipoise (boldenone undecylenate) and trenbolone acetate and trenbolone enanthate, as well as the water-based injectable Winstrol (stanozolol). Popular oral anabolic steroids include methandrostenolone (Dianbol), oxandrolone (Anavar) and oxymetholone (Anadrol 50).
General pricing has been very briefly covered above, but individuals seeking to buy Anavar will usually find little variation in pricing. Those looking to purchase Oxandrolone can locate vendors both in-person ‘gym sources’, as well as the more popular method these days: the internet. Prices do not differ too much between the two, but anyone attempting to buy this oral steroid on the internet will notice distinct pricing differences between websites that set minimum order limits compared to websites that do not do so. Websites that do not set minimum order limits allow individuals to purchase Anavar in very small quantities (single bottle orders, etc.), and because the vendor tends to make small sales as opposed to large quantity sales, prices are frequently inflated to make up for the logistical costs of small orders. Prices by sources that do not set minimum order limits will typically run into pharmaceutical grade Var in the range of $120 – $150 for 60 tablets at 10mg each, while underground lab Oxandrolone can be seen in the range of $300 for 100 tablets at 10mg each. As one can see, these prices tend to be extremely expensive. Internet sources that place minimum order limits will typically be in the range of (for pharmaceutical grade) $70 – $80 for 60 tablets at 10mg each and (for underground lab grade $50 – $70 for 50 tablets at 10mg each. These same prices (internet sources with minimum order limits) are generally the exact same as ‘gym’ and ‘in-person’ sources.
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.