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Become A Gym Savage With Sleeve-Busting Gains

Become A Gym Savage With Sleeve-Busting Gains

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OSTA 2866 is an intense, powerful, and natural alternative to OSTARINE MK-2866— giving you the muscle-building fuel to become a monster at the gym without the risky side effects.


100% satisfaction, 60-day money back guarantee

  • Boosts insane muscle growth⁠†
  • Supports heightened testosterone⁠†
  • Preserves muscle mass⁠†
  • Increases overall muscle size⁠†

100% satisfaction, 60-day money back guarantee

“I started taking your OSTA with TESTOL-140 and my gains are insane. My muscles popped around week 2 and I’m loving how I feel on this. Great customer service, too. ”

Steven T., Asheville, NC

  • Safe & Powerful

  • All Natural

  • Made In
    The USA

  • 60-Day Money
    Back Guarantee

  • Free Shipping on
    orders over £75

  • HUGE

    “OSTA 2866 works. If your diet is clean and you get after it, you’ll notice the pumps are stronger and you can go longer. Clean product. No side effects. Solid.”

    Peter T., Atlanta, GA Verified User
  • So far so good!

    “I’ve only been using OSTA for a couple of weeks and I can tell my energy and focus have improved. Still looking forward to the big gains. Thanks.”

    Gene P., Seattle, WA Verified User

    “Gave me an incredible pump. My veins are popping more and I feel way stronger. Great work guys!!”

    Ned P., Newark, NJ Verified User
  • Keeps me lean

    “I take this every day and I noticed I can maintain my gains even when I don’t get to the gym. Good formula..”

    Gerry Y., Hartford, CT Verified User

    “I don’t know what wizardry you got going over there at CrazyBulk Headquarters, but this formula gets me into a primal state and I burst through my reps. I’m stocking up for sure.”

    Peter L., Los Angeles, CA Verified User
  • If you want anabolic growth…

    “I’ve added this to my daily routine… and I’m particular about the supplements I take. I’ve tried so many garbage supplements over the years and CrazyBulk has never disappointed.”

    Eric C., Columbus, OH Verified User


OSTARINE MK-2866 Isn’t Safe!

If you’re looking to throw your body into an anabolic state to skyrocket gains and become a savage in the gym, then chances are you’ve come across OSTARINE MK-2866.

But before you start cycling this SARM— STOP!

While OSTARINE MK-2866 is one of the most well-known SARMs, with tons of research showing its effect on triggering new muscle growth…

It’s also considered an experimental drug that requires specific cycling, and may not be worth the harmful (and long-term) side effects, including:

  • Dead Sex Drive
  • Impotence
  • Male-Pattern Baldness
  • Headaches
  • Body Odor
  • Muscle Cramps
  • Anxious Feelings

As you can see, while OSTARINE MK-2866 may work— the risks are not worth it, especially when a very effective and natural OSTARINE-alternative already exists!


100% satisfaction, 60-day money back guarantee

OSTA-2866 Mimics OSTARINE’s Anabolic Growth Safely & Naturally!

OSTA-2866 is a safe, legal, and natural alternative to OSTARINE MK-2866 that provides you with all of the OSTA bulking and growth benefits, but without the harmful side effects.

In other words, you can now reap the benefits of OSTARINE MK-2866, like…

  • Anabolic Growth⁠†
  • Rapid Bulking⁠†
  • Speedy Muscle Recovery⁠†

…but without putting your health at risk or causing unnecessary anxiety, wondering if what you're taking is “clean” or not. Taking all-natural OSTA-2866 also means:

  • No needles and no injecting
  • No need to "cycle off" to avoid side effects
  • No possibility of legal troubles
  • No "surprises" at the doctor's office

So if you want to bulk-up fast, consistently beat your personal best, and feel more confident about your body, then hit the “order now” button and secure your order of OSTA-2866 before we sell out!


100% satisfaction, 60-day money back guarantee

What To Expect When Taking OSTA-2866 On A Daily Basis

  • Extreme Muscle Build

    OSTA-2866 combines science-backed, natural ingredients that can throw you into an anabolic state for serious gains.

  • Preserve Muscle Mass

    Don’t lose all of your hard work! OSTA-2866 can help maintain lean muscle mass, which is great for those “off” weeks that can happen from time to time.

  • Boost Testosterone

    More testosterone means more muscle growth— and OSTA-2866 helps support more natural free testosterone so you can bulk-up and feel like a man.

  • Prevent Excess Fat Storage

    You want a “lean bulk” and that’s what OSTA-2866 can help deliver, so you can pack on slabs of muscle without the flab.

  • Reduce Muscle Fatigue

    Want to bust through your personal best without losing steam? OSTA-2866 supplies key muscle & brain nutrients that can help maintain drive, stamina, and muscle power.


100% satisfaction, 60-day money back guarantee


100% satisfaction, 60-day money back guarantee

You’re A Man, So Feel Like One

Made For Men Of All Ages

OSTA-2866 delivers key ingredients to help bulk-up, increase lean muscle mass, and look like a beast in no time!

  • Stuck In A Plateau

    OSTA-2866’s combination of natural, clean ingredients can help push your body to the next level and break through your plateau for more muscle growth.

  • Men Over 40

    Keeping your hard-earned gains can get tough as we age. OSTA-2866 helps to reinvigorate your muscle power so you can build like you’re in your 20s again!

  • Skinny Dudes

    Tired of being the “skinny guy”? OSTA-2866 was formulated to help stack on muscle without having to eat all hours of the day.

  • Students

    Don’t have enough time to lift as much as you’d like? Adding OSTA-2866 to your routine is like having a trainer helping you build muscle, even when you can’t make it to the gym!


100% satisfaction, 60-day money back guarantee


100% satisfaction, 60-day money back guarantee

OSTA-2866 Delivers Only Natural Ingredients You Can Trust

  • Southern Ginseng

    Southern Ginseng has been shown to help reduce muscle fatigue, which can help you break through your personal best… and keep going! 1 

  • Magnesium

    Helps to improve testosterone levels, strength, muscle mass, and endurance. 2 

  • Zinc

    One study published in The Journal of Exercise Physiology revealed men who took 30 mg of zinc every day showed an increase in free testosterone, which in turn can help boost energy, muscle growth, and improve mood. 3 

  • Salacia

    Salacia has been shown to help prevent the absorption of sucrose and improve insulin— so you can put on lean muscle without putting on excess weight. 4 

  • Fennel

    Fennel is packed with vitamin C, potassium, and niacin to help boost energy, support the immune system, and boost overall muscle strength.

  • Cinnamon

    Rich in antioxidants, cinnamon helps improve blood circulation, supports muscle relaxation, and helps prevent muscle soreness.

  • Reishi Mushroom Extract

    Reishi mushroom is the king among the fungi, with potent anti-inflammatory properties that can help the body recover fast post-workout.

  • Formulated by Bodybuilders

    Formulated by Bodybuilders

  • Crafted for High Performance

    Crafted for High Performance

  • Safe Alternative 
to Steroids

    Safe Alternative to Steroids


100% satisfaction, 60-day money back guarantee


100% satisfaction, 60-day money back guarantee

How Do We Stack Against Our Competitors?

(OSTARINE MK-2866 Alternative)

  • Made with natural, clean, and safe ingredients
  • Triggers anabolic growth naturally
  • Helps to bulk-up and preserve muscle
  • Free worldwide shipping on all orders over £75
  • 100% satisfaction, 60-day money-back guarantee
  • Made with unregulated, sketchy ingredients
  • Can trigger more bodily harm than good
  • Can cause male-pattern baldness and impotence
  • Can contain a deceptively high amount of unnecessary ingredients
  • May not have a guarantee, or possibly a shady auto-bill enrollment

100% satisfaction, 60-day money back guarantee


100% satisfaction, 60-day money back guarantee

Show Off Your Natural Gains Without The Risk!

Just take 4 easy-to-swallow capsules of OSTA-2866 on a daily basis to become a gym beast that commands attention!

  • Natural OSTARINE MK-2866

  • 60-Day Moneyback Guarantee

  • Zero known side effects

  • Made in the USA

  • Soy free

  • Gluten free


100% satisfaction, 60-day money back guarantee

Insane Muscle Growth Begins With Your First Dose

Here’s what you could expect as you continue to take OSTA-2866 on a daily basis

  1. Within The First 24 to 48 Hours

    Take 4 capsules 30-45 minutes before lifting. During this period, the ingredients of OSTA-2866 will begin to be absorbed, ready to support your intense workout!

  2. In Two Weeks

    You’re already noticing a change in your body composition. You feel a surge of new free testosterone, and yeah, it feels amazing!

  3. In 1 Month

    You begin to see some dramatic changes in your body. You look in the mirror and are stunned by what you see. Your shoulders are looking rounder; your chest is popping; and your sleeves are tight AF around your biceps.

  4. In 3 Months And Beyond

    You’ve taken command of your workouts like never before. You look strong, big, and mean as hell. You’re getting more looks and more dates. In short, your life has changed forever and you feel and look incredible!

Try OSTA-2866 today risk-free and experience the intense muscle-building power firsthand!


100% satisfaction, 60-day money back guarantee

Results may vary from person to person. This timeline may not reflect the typical Osta 2866 customer’s experience, and does not guarantee anyone will achieve the same or similar results.

What To Expect With OSTA-2866

OSTA-2866 helps increase muscle size, improve definition, and scorch-away excess fat for a fit, trim, and sexy physique!

  • Life Without OSTA-2866

    • Feeling Flabby & Sad

    • Lower Motivation

    • Stuck In A Plateau

    • Train 5X As Hard To See Results

    • Not Seeing Results Fast Enough

    • Low Stamina

  • Life With OSTA-2866

    • Increased Muscle Size

    • Intense Power & Strength

    • Achieve The Body Of Your Dreams
    • Look & Feel Incredible

    • Positive Changes In Days Rather Than Months

    • Preserve The Muscle You Have


100% satisfaction, 60-day money back guarantee


100% satisfaction, 60-day money back guarantee


OSTARINE MK-2866 Alternative

As Low As $1.96 A Day!

  • Helps heighten anabolic growth⁠†
  • Preserves lean muscle mass⁠†
  • Prevents excess weight gain⁠†
  • Increases energy & stamina⁠†
  • Improves muscle recovery⁠†
  • Made with all-natural, powerful ingredients⁠†
  • Try us 100% risk-free!

100% satisfaction, 60-day money back guarantee

Secure Your OSTA-2866 Package & Save Today!

⚠ Limited Stock – Only 5 Boxes Per Household

  • free shipping on orders over £75

  • 60-day money backguarantee

  • massive savings on higher packages

  • Legal & safe alternative


1 month supply

Retail: £64.99
Today: £54.99
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Retail: £194.97
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Remember: You’re Covered By Our..

100% Satisfaction, 60-Day Money Back Guarantee!

That means if you don’t experience positive changes to your overall health and physique, including more testosterone, faster gains, bigger muscles, and more energy, then we’ll return your money, every penny.

We know the likelihood of this happening is very low, and this is why we can make such a strong guarantee.

However, if you’re not happy, then we’re not happy and we’ll do whatever it takes to make it right.


100% satisfaction, 60-day money back guarantee

Frequently Asked Questions

Which OSTA-2866 package is right for me?

Many of our Crazy Bulk customers who experience the best results— including faster muscle growth, increased strength and power, and more energy— often secure the 3 and 5-bottle packages of OSTA-2866.

While a single bottle of OSTA-2866 can give you many of the benefits promised on this page, we recommend taking OSTA-2866 on a regular basis for up to 3 months or longer to experience everything our premium bodybuilding formula has to offer.

There’s no added risk by ordering more today. You are still covered by our 100%, 60-day money-back guarantee, which you won’t find anywhere else. 

Additionally, when you order today while on this page, you can guarantee you’ll receive your order before we run out of stock!

How soon will I notice positive results?

Many of our customers have noticed positive physique changes in as little as 2 weeks—some even notice a difference within the first few times taking OSTA-2866! However, keep in mind this does not take into account diet, exercise, and proper nutrition. 

OSTA-2866 isn’t a magic bullet. You still need to incorporate other healthy practices so you can continue to receive these incredible muscle-building benefits in the long-run.

Here’s what we can say: with consistent use of OSTA-2866, you can begin to feel and see a noticeable change in your lifts, energy, and overall body composition within 60 days of purchase or we’ll return your money.

How come I can’t just take the real OSTARINE MK-2866?

OSTARINE MK-2866 may work, but are the long-term health risks worth it…?

OSTA-2866 from Crazy Bulk uses only natural ingredients that allow your body to accept all of this new muscle-building material so you can get jacked fast and without nasty, weird side effects.

Are there any side effects?

No. OSTA-2866 has no known side effects and is safe to take. 

However, we recommend seeking professional medical advice before beginning any new health routine with a supplement.

Does OSTA-2866 need to be refrigerated?

No. OSTA-2866 is completely shelf-stable and does not require refrigeration. This makes it convenient for you to toss the bottle in your gym bag, backpack, or carry-on luggage.

Will this give me jitters?

No. Our formula is completely stimulant-free and is made to support effective muscle growth, energy, and stamina without feeling like you’re hopped up on a pre-workout formula.

How do I take OSTA-2866?

For best results, we recommend taking 4 capsules of OSTA-2866 30 to 45 minutes before lifting.

Then repeat the process every day for the next several months so you can continue to see and feel dramatic changes in your physique.

What if I’m not satisfied with my results while taking OSTA-2866?

We find that unlikely. However, we also know that no two people are the same. 

First off, we always recommend securing the 3 or 5-bottle package of OSTA-2866 so you can give it a fair shake at delivering all of the muscle bulking benefits you deserve. 

With that said, if you are unhappy with your results by taking OSTA-2866 on a regular basis, then you may return your order within 60 days of purchase for a full refun

Is my credit card information safe?

Yes! We process all of our orders through a safe, encryption payment processing system. We do not have access to your credit card information, nor do we have the ability to store your credit card information.

After I place my order, how soon will I receive my package?

If you live in the United States or the United Kingdom, your order should arrive within 5 business days.If you live in Australia, Canada or France your order should arrive within 10 business days.Looking for shipping somewhere else? We plan on launching in more countries soon.

Where can I buy OSTA-2866?

You can buy OSTA-2866 directly on this page. Our checkout process is fast, simple, and secure.

Trusted Scientific Sources

 1 Bach, Hoang Viet, et al. “Efficacy of Ginseng Supplements on Fatigue and Physical Performance: A Meta-Analysis.” Journal of Korean Medical Science, The Korean Academy of Medical Sciences, Dec. 2016, 

 2 Maggio, Marcello, et al. “The Interplay between Magnesium and Testosterone in Modulating Physical Function in Men.” International Journal of Endocrinology, Hindawi Publishing Corporation, 2014, 

 3 JEP Journal of Exercise Physiology Online – 

 4 Jeykodi, Shankaranarayanan, et al. “Salacia Extract Improves Postprandial Glucose and Insulin Response: A Randomized Double-Blind, Placebo-Controlled, Crossover Study in Healthy Volunteers.” Journal of Diabetes Research, Hindawi Publishing Corporation, 2016,

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