SKU: 47460479178

OSTARINE (MK-2866) – Solution, 750mg (25mg/mL)

Sale price$44.99 Regular price$49.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

OSTARINE (MK-2866) – Solution, 750mg (25mg/mL)OSTARINE (MK 2866) Ostarine MK 2886 is a non steroidal Selective Androgen Receptor Modulator (SARM) with tissue selective anabolic and androgenic pharmacological properties. In the scientific literature, it is also known as enbosarm, GTx 024, or S 22. This SARM was originally discovered in 1998 by James T. Dalton, Duane D. Miller, Karen A. Veverka, and their respective research teams at Ohio State University, the University of Tennessee, and GTx. GTx

OSTARINE (MK-2866)

Ostarine MK-2886 is a non-steroidal Selective Androgen Receptor Modulator (SARM) with tissue-selective anabolic and androgenic pharmacological properties. In the scientific literature, it is also known as enbosarm, GTx-024, or S-22.

This SARM was originally discovered in 1998 by James T. Dalton, Duane D. Miller, Karen A. Veverka, and their respective research teams at Ohio State University, the University of Tennessee, and GTx. GTx acquired the licensing rights from these research teams and further sublicensed the development of MK-2886 to Merck & Co.

MK-2886 is one of the first SARMs to be synthesized and studied in both rats and primates, making it one of the most extensively researched SARMs.

In one study focusing on adult rats, specifically their fat cells or adipocytes, the administration of MK-2886 Ostarine reduced the expression of fat-related hormones like leptin and adiponectin mRNA. Researchers concluded that MK-2886 is likely to have an effect similar to that of testosterone on the AR receptors, leading to a reduction in body fat in rats. Source

Another study showed that MK-2886 Ostarine also stimulates bone growth in rats. At the highest dosage, 4 mg/kg, the test subjects exhibited improved bone density, quicker healing time, and higher markers of bone growth hormones such as phosphorus and alkaline phosphatase.

Interestingly, all rats in the research group showed an increase in the weight of the gastrocnemius muscle, even at the lowest dosage of 0.04 mg/kg. Serum cholesterol levels were also lowered in this group, indicating an improved lipid profile. Source

In a subsequent study, similar results were observed; rats with clinically induced osteoporosis showed increased bone density when treated with moderate to high doses of MK-2866. Source

A third study evaluated muscle growth in mice genetically modified to lack traditional androgen receptors. After removing the mice's endogenous testosterone-producing cells, muscle degradation began, and MK-2886 treatment was initiated. These mice showed muscle growth in androgen-sensitive muscles via an alternative pathway, different from that of the traditional androgen receptors. Source

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 or domestic use. Please familiarize yourself with our DISCLAIMER before ordering.

Data Sheet

Ostarine (MK-2866) – Solution, 750mg (25mg/mL)

Application Selective Androgen Receptor Modulator
CAS 841205-47-8
Molar Mass 389.33 g/mol
Chemical Formula C19H14F3N3O3
IUPAC Name ((2S)-3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide)
Synonyms Ostarine, Enobosarm, GTx-024, MK-2866
Storage Room temperature
Solubility Soluble in Ethanol, PEG400
Organoleptic Profile Clear liquid
Physical Form Solution in PEG400
Specification 25mg/mL ±5%
Terms This material is sold for laboratory research use only. Terms of sale apply. Not for human consumption, nor medical, veterinary, or household uses. Please familiarize yourself with our Terms & Conditions prior to ordering.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47460479178

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 518 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Mae
Birmingham, US
★★★★★ 5
Love this!
Flavor Name: Peanut Butter, Size: Large
My dog loves these! They're way better than rawhide!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
E
Verified Purchase
Esther T
Battle Creek, US
★★★★★ 4
DOGS LIKE IT
Flavor Name: Peanut Butter, Size: Large
DOGS LIKE IT
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
J
Verified Purchase
Jami Lynn
Battle Creek, US
★★★★★ 5
A hardy chew toy
Flavor Name: Peanut Butter, Size: Medium, Flavor Name: Peanut Butter, Size: Medium
My dog loves these! I have purchased several. The size is perfect for my 25-pound cockapoo. It’s durable and she chews them for months until they’re prickly and not as fun anymore. The price is reasonable enough and she loves them so well (they’re one of the two chew toys that she likes), so I feel like the cost is worth it. One thing to note is that my dog does chew off tiny bits from the bone. She usually spits them out but has swallowed some bits here and there. There hasn’t been a situation with the swallowed pieces, but I always monitor her as she uses it and would suggest that for other pet owners also. Safety is always key, but we have never had any problems in the two years I’ve been buying them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 2, 2025
C
Verified Purchase
Chuck
Lake Worth, US
★★★★★ 5
Golden approves
Flavor Name: Peanut Butter, Size: Medium
Golden approves. Good size. Durability is hard, she did end up chewing the heck out of it. Great for puppies.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
R
Verified Purchase
Randa
Cuba, US
★★★★★ 1
Don't recommend for any type of chewers
Flavor Name: Peanut Butter, Size: Medium
Same product, don't recommend due to slicing of material. My pup is a chewer and he was a 4mo old Chug at the time. Not worth my worrying about him swallowing plastic
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026

recommand products