Xeno Labs supplies Mast P 100 as a 10 ml vial carrying drostanolone propionate at 100 mg per ml. The propionate ester distinguishes this compound structurally from drostanolone enanthate, which attaches a longer ester chain to the same base steroid. Xeno Labs has been based in the USA since 2018. This vial fits within the broader drostanolone propionate for sale online in us catalogue, where concentration and ester type separate one listing from another.

Drostanolone Propionate at 100 mg/ml in a 10 ml Vial

Each milliliter of this vial holds 100 mg of drostanolone propionate, giving the full 10 ml vial a total labeled volume of 10 ml. Shoppers comparing masteron propinate listings will find this concentration lower than some alternatives: Gomeisa Labs lists masteron 100 at the same 100 mg/ml strength, while other labs offer 150 mg/ml or 200 mg/ml formulations in similar vial sizes. The propionate ester here differs from the enanthate ester by the length of the attached carbon chain, which affects the compound's structure but not the drostanolone base itself.

Mast P 100 Beside Other Xeno Labs Vials

Xeno Labs packages Mast P 100 in a glass vial sealed with a rubber stopper, the same format used for the company's Primo 100 and NPP 100 lines. Where this vial carries drostanolone propionate at 100 mg/ml, the NPP 100 vial holds nandrolone phenylpropionate at the same concentration, and both share the 10 ml volume. The propionate ester in Mast P 100 sets it apart from drostanolone enanthate products, which pair the same active steroid with a longer ester—Gomeisa Labs supplies that enanthate variant in ampoule form rather than as a vial.

Pack and Presentation

• Single 10 ml vial per unit
• 100 mg drostanolone propionate per ml
• Propionate ester, not enanthate
• Glass vial with rubber stopper closure