Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes. 
Benzyl alcohol CAS: 100-51-6
Benzyl alcohol MF: C7H8O
Benzyl alcohol MW:
Benzyl alcohol EINECS: 202-859-9
Benzyl alcohol Chemical Properties colourless liquid
Benzyl alcohol Usage antimicrobial, antipruritic
Benzyl alcohol General Description A clear colorless liquid with a pleasant odor. Slightly denser than water. Flash point 194°F. Boiling point 401°F. Contact may irritate skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.
Air & Water Reactions Slightly soluble in water.
Benzyl alcohol Usage:
(1) Benzyl alcohol is a good middle boiling point solvent.
(2) The main applications:paint solvent; ink solvent; plexiglass solvent; photographic developing agent; PVC stabilizer; medicine, synthetic resin solvent; ointment or liquid medicine; solvent for meat products stamp-pad ink and ball-point pen oil.
(3)It is used for carpet degreaser; crater cleaning agent; silicone solvent stabilizer; benzyl ester or ether intermediate.
(4)Benzyl alcohol is a kind of very useful perfume fixative. It is an indispensable spice when jasmine, tuberose or ylang is mixed, and used to compound soap and daily cosmetics.
Benzyl alcohol is used as a general solvent for inks, paints, lacquers, and epoxy resin coatings. It is also a precursor to a variety of esters, used in the soap, perfume, and flavor industries. It is also used as a photographic developer.