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MAINTAIN (MK-2866) or Ostarine is an oral SARM. It strong and effective product that is used to treat muscle wasting during a cutting phase. It has also been known to increase production of new muscle mass. MAINTAIN (MK-2866) binds to the androgen receptors and shows osteo (bone) and myo (muscular) selective anabolic activity. The stimulation increases protein synthesis and builds muscle. This causes muscle growth just like steroids but it won’t produce negative side effects commonly found in anabolic steroids and prohormones.

For research enthusiasts this means Ostarine can be both used for bulking and cutting or even recomping. For bulking this means rapid lean muscle and strength gains without the unwanted side effects such as gynecomastia and water retention. For cutting, Ostarine will prevent losing muscle during a caloric deficit. On top of its muscle prevention benefits, it also has the effect of healing and repairing joint injuries which has been backed up by various studies. It is also an agent to reduce degeneration during recovery times from serious surgery or similar conditions.


Concentration: 33mg/mL

Volume: 30mL

Recommended max dosage of MAINTAIN (MK-2866) is around 33mg (1ml) once a day. Each bottle has 30ml with an average dose been around 1ml (1 full dropper squirt). Each bottles lasts around 30 days.

Recommended Combinations

1. Endurance: You can stack MAINTAIN (MK-2866) with SHRED (GW-50156) for increased endurance before your workout or run

2. Anabolic Steroid Stack: MAINTAIN (MK-2866) can be added to your existing anabolic steroid cycle in order to increase lean muscle mass and strength without additional side effects.

4. AUS LABS PCT SUPPORT STACK: MAINTAIN (MK-2866) is minimally suppressive at 33mg per day for 4 weeks or less. Thus, it can be stacked into your post cycle therapy, or your bridging phase, to maintain strength and muscle. When combined with 20mg of SHRED (GW-501516) the result is minimum loss of gains and no fat gain.

5. AUS LABS TRIPLE STACK: If you want to build muscle mass while losing fat at the same time, MAINTAIN (MK-2866) stacks beautifully with MASS (S4) and SHRED (GW-501516).

Ingredients/ HPLC Purity Report

MAINTAIN (MK-2866): ((2S)-3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide), Food-grade USP glycol, food-grade ethyl alcohol and essential oils.

Please email [email protected] for the latest HPLC purity report.


Cool and dark space like a cupboard or pantry.

Medical References

  1. Zilbermint, MF & Dobs, AS n.d., ‘Nonsteroidal selective androgen receptor modulator Ostarine (TM) in cancer cachexia’, FUTURE ONCOLOGY, vol. 5, no. 8, pp. 1211–1220
  2. Gtxinc. (2012). selective-androgen-receptor-modulator-sarm/sarms-in-muscle-diseases.
  3. Dubois, V( 1 ), Laurent, MR( 1,2 ), Claessens, F( 1 ), Jardi, F( 3 ), Vanderschueren, D( 3 ), Simitsidellis, I( 4 ) & Saunders, PTK( 4 ) n.d., ‘Enobosarm (GTx-024) modulates adult skeletal muscle mass independently of the androgen receptor in the satellite cell lineage’, Endocrinology, vol. 156, no. 12, pp. 4522–4533
  4. Kim, J( 1 ), Veverka, KA( 1 ), Dalton, JT( 1 ) & Wang, R( 2 ) n.d., ‘Absorption, distribution, metabolism and excretion of the novel SARM GTx-024 [(S)-N-(4-cyano-3-(trifluoromethyl)phenyl)-3-(4-cyanophenoxy)-2-hydroxy- 2-methylpropanamide] in rats’, Xenobiotica, vol. 43, no. 11, pp. 993–1009

No statements made on this page have been evaluated by the Bundesministerium für Gesundheit (BMG) or the Therapeutic Goods Administration (TGA). These products are not intended to treat, cure or prevent any disease or illness. All products are strictly for research purposes only. Please refer to the TERMS OF USE for more information.

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