MK-2866 Ostarine Capsules — Research Grade

MK-2866 (Ostarine, Enobosarm) is a selective androgen receptor modulator with one of the most comprehensive pharmacological research profiles among compounds in its class. Originally developed by GTx Inc. as an investigational drug candidate for sarcopenia, osteoporosis, and disease-related muscle wasting, MK-2866 operates via selective agonist binding to androgen receptors — activating anabolic gene transcription pathways in skeletal muscle and bone with a high degree of tissue selectivity relative to classical androgenic compounds. Its mechanism, pharmacokinetics, and receptor binding kinetics are well-characterised in the published literature, making it a widely used reference compound in androgen receptor research.

Format and specifications

This product is supplied in capsule form in the following sizes: 5mg, 10mg, 25mg, 50mg, 100mg, 200mg, 500mg, 1g, 2g, and 5g total. Each capsule contains pharmaceutical-grade MK-2866 (Enobosarm) at ≥99% purity as confirmed by HPLC analysis. Capsules are manufactured in a controlled environment to ensure consistent fill weight and concentration accuracy within ±5% of stated value. The encapsulated format provides accurate per-unit dosing precision for cell culture supplementation studies and related in-vitro applications where consistent compound quantities are required across experimental replicates.

Purity and quality assurance

Every capsule batch is independently tested by an accredited third-party analytical laboratory before release. Our quality verification protocol comprises HPLC purity analysis confirming ≥99% active compound, mass spectrometry identity confirmation verifying the MK-2866 molecular profile, and fill weight verification to confirm capsule-to-capsule consistency. We do not accept or rely on manufacturer-provided CoA documentation — all testing is independently commissioned.

Certificate of Analysis

The Certificate of Analysis for the current capsule batch is published on our Lab Testing page, indexed by batch number. Your order confirmation will include the batch reference for your shipment. Documentation can also be requested directly via support with your order number and batch reference.

Storage

Store capsules at room temperature (15–25°C) in a dry location away from direct light. Keep container sealed between uses. Do not expose to high humidity. Estimated shelf life is 24 months under appropriate storage conditions. Capsules should not be frozen or exposed to temperature extremes.

Research use only

MK-2866 Ostarine Capsules are supplied exclusively for in-vitro laboratory and research purposes. They are not approved by the Therapeutic Goods Administration (TGA) or any other regulatory authority for human consumption, veterinary use, or clinical application. By purchasing this product, the buyer confirms they are a qualified researcher or licensed professional accessing this compound for lawful research purposes only. Not for human or animal consumption.