SKU: 46479641874

OTR-AC (MK-29, OSTARINE-O-ACETATE) Solution, 750mg (25mg/mL)

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Description

OTR-AC (MK-29, OSTARINE-O-ACETATE) Solution, 750mg (25mg/mL)OTR AC (MK 29, OSTARINE O ACETATE) OTR AC, also known as MK 2866 Ester, is MK 2866 (Ostarine) that has undergone esterification (the process of combining an organic acid with an alcohol). This chemical process is used to maximize potency and extend the half life (the time required for a quantity to reduce to half of its initial value) of a substance. Due to this process, the ester version of ostarine has the capacity to remain bioactive ten times

OTR-AC (MK-29, OSTARINE-O-ACETATE)

OTR-AC, also known as MK-2866 Ester, is MK-2866 (Ostarine) that has undergone esterification (the process of combining an organic acid with an alcohol). This chemical process is used to maximize potency and extend the half-life (the time required for a quantity to reduce to half of its initial value) of a substance. Due to this process, the ester version of ostarine has the capacity to remain bioactive ten times longer. This results in benefits such as reduced dosing frequency and more stable blood levels.

How OTR-AC Works 
As the ester version of the selective androgen receptor modulator (SARM) ostarine, OTR-AC is more potent and has longer-lasting effects. By binding to proteins in the body known as androgen receptors, it stimulates the formation of muscle tissue. This, in turn, leads to an increase in muscle mass and strength.

Research on OTR-AC
Increase in Muscle Mass and Strength 
Studies suggest that OTR-AC, along with other SARMs, increases muscle mass and strength by stimulating the formation of muscle tissue:

  • In adult rats, the administration of SARMs, including OTR-AC, resulted in an increase in lean muscle mass and a decrease in body fat percentage.
  • In older male and female rats, OTR-AC administration resulted in increased lean muscle mass, decreased fat mass, and significant improvements in their ability to climb stairs.
  • Studies showed that OTR-AC may help increase muscle mass in rats with cancer cachexia (muscle wasting).
  • In older male and female rats, OTR-AC significantly improved total lean body mass and physical function.
  • In rats that had their ovaries surgically removed, OTR-AC improved muscle tissue.
  • In rats, OTR-AC increased muscle mass by enhancing the production of muscle cells.

Reduction of Body Fat 
Aside from helping gain muscle mass, OTR-AC has also been found to reduce overall body fat:

  • In Phase I and II clinical trials, OTR-AC has demonstrated promising results in increasing total lean body mass, decreasing total tissue fat percentage, and enhancing functional performance.
  • A review of studies showed that OTR-AC can help increase lean body mass and reduce body fat in overweight rats.
  • In a phase 2a study, the administration of OTR-AC along with other SARMs resulted in increased lean fat mass and decreased body fat percentage.
  • In male rats, OTR-AC increased fat cell breakdown by improving lipid metabolism and affecting the release of adiponectin (a hormone that regulates fatty acid breakdown).

Improvement of Bone Health 
Studies suggest that OTR-AC can help stimulate bone formation and protect against bone disorders:

  • In rats that had their ovaries surgically removed, OTR-AC administration resulted in improved bone healing.
  • In a rat model for aged male osteoporosis, both OTR-AC and testosterone treatments improved bone healing by increasing callus volume and area, bone volume and density, and bone width.
  • In a rat model of postmenopausal osteoporosis, high doses of OTR-AC for 5 weeks resulted in increased bone volume, density, and bone mineral density.

 

Reduction of Cholesterol Levels 
Evidence suggests that OTR-AC can help lower cholesterol levels, especially low-density lipoprotein (bad cholesterol):

  • In older male and female rats, OTR-AC administration resulted in a significant reduction in low-density lipoprotein levels.
  • In rats that had their ovaries surgically removed, OTR-AC treatment reduced blood cholesterol levels.

 

Concentration
25mg/ml.

Half Life
24 hours.

DISCLAIMER
This material is sold for use in laboratory research only. Terms of sale apply. Not for human consumption, nor for medical, veterinary use. Please use with our DISCLAIMER before ordering.

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SKU: 46479641874

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Leslie
Cuba, US
★★★★★ 5
Best cleaner
Size: 4.98 Fl Oz (Pack of 1)
I continue to purchase this even though it’s pricy! Makes my skin feel so clean and doesn’t break me out.
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Reviewed in the United States on May 23, 2026
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Chelsea Hall
Alexandria, US
★★★★★ 5
Melts Makeup Off
Size: 4.98 Fl Oz (Pack of 1)
I love this stuff! It melts my makeup away so gently, even mascara, so I don’t have to scrub as hard as I used to with other cleaners. I follow with my face soap, and my face actually feels like everything has been wiped away now. I feel like my blackheads have even improved and my pores are less clogged.
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Reviewed in the United States on May 16, 2026
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STL Runner
San Leandro, US
★★★★★ 5
Nice and work well for sensitive skin
Scent: Unscented, Size: 25 Count (Pack of 2)
Work well and don’t irritate my eyes or skin. Little pricey but I think it’s worth it— compared to Neutragena or others which burn my eyes and face !
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Reviewed in the United States on May 1, 2026
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Mona
Boise, US
★★★★★ 5
Works great on my sensitive skin
Scent: Unscented, Size: 25 Count (Pack of 2)
As someone with sensitive skin, finding makeup wipes that effectively cleanse without irritation has always been a challenge. That's why I was thrilled to discover these amazing makeup wipes designed specifically for sensitive skin. First and foremost, these wipes are incredibly gentle. Upon first use, I noticed how soft they felt against my skin. Unlike other wipes that can feel rough and abrasive, these glide smoothly, effortlessly removing makeup without any tugging or pulling. But effectiveness is equally important, and these wipes deliver. They effortlessly dissolve even stubborn makeup, leaving my skin feeling clean, fresh, and rejuvenated. Whether it's waterproof mascara, long-lasting lipstick, or heavy foundation, these wipes tackle it all with ease, saving me time and hassle in my skincare routine. What truly sets these wipes apart, however, is their commitment to skin health. Infused with soothing ingredients like aloe vera and chamomile, they not only cleanse but also calm and nourish my sensitive skin. I've experienced no redness, irritation, or dryness after using these wipes, which is a testament to their gentle yet effective formula. And let's talk about convenience. The packaging is perfect for on-the-go use. Whether I'm traveling, at the gym, or simply need a quick refresh during the day, these wipes are always within reach. The resealable closure ensures that each wipe stays moist and ready for use, maintaining their efficacy over time. In conclusion, if you have sensitive skin and are in search of makeup wipes that are both gentle and effective, look no further. These wipes have become a staple in my skincare routine, providing me with a convenient and reliable solution for makeup removal without compromising on skin health. I highly recommend giving them a try – your skin will thank you!
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Reviewed in the United States on May 14, 2024
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vegas
Los Angeles, US
★★★★★ 5
works great
Scent: Unscented, Size: 25 Count (Pack of 1)
I loved these, good ingredients not fragrance really they were fresh everytime and removed my makeup not harsh on the skin
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Reviewed in the United States on May 20, 2026

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