The journey to building muscle and increasing bulk is anything but easy. While many people would be excited to wield the biggest muscles and most ripped body in their social circle, only few have the patience to spend the weeks, months or even years in the gym required to achieve that. There’s certainly no avoiding the back-breaking effort required to bulk muscle. But the right supplement can slash the time it takes you to get to that ideal body.

In the past, anabolic steroids and SARMs like Dianabol (methandienone) and Ostarine (enobosarm) were the supplements you would reach for if you wanted to get ripped quickly. Over the years, the grave and long-term health risks posed by the use of Dianabol and Ostarine became apparent. Fortunately, there are healthy alternatives that do make the cut. 

D-Bal and Ostabulk are two of the better known brands in the muscle-building space. Both promise impressive results. But since you should not take two supplements at the same time, you eventually have to make the decision to pick one. Let’s see which brand emerges top when D-Bal and Ostabulk go head to head.

What is D-Bal?

D-Bal is a product that delivers similar gains as the famous anabolic steroid Dianabol/methandienone but without the health hazards Dianabol has become known for lik liver damage, cardiovascular illness and fluid retention.

These health conditions are the principal reasons why Dianabol/methandienone is designated a controlled substance in the US and UK.

D-Bal on the other hand combines safe, research-backed and natural ingredients to not just grow muscle and increase strength but also reduce unhealthy fat and lower cholesterol. It diminishes muscle soreness, accelerates tendon and bone healing, boosts stamina and strength, and sharpens drive and focus.

It is made by Crazy Bulk USA, a company that is well known in bodybuilding circles and has thousands of social media followers. Testo-Max may be Crazy Bulk’s most famous product but the company does have a fairly extensive product line that includes Anvarol, Winsol, Gynectrol and Anadrole.

Key Features
  • Quick, large and stable muscle gains.
  • Boost energy, stamina and strength. Rapid post-workout recovery.
  • Burns away unhealthy body fat.
  • Sharper focus and elevated drive.

What is Ostabulk?

Ostabulk is a legal and safe muscle-growing and strength-building alternative to Ostarine. While it delivers many of the benefits that are associated with the once popular Ostarine, it does not have the dangerous side effects of its anabolic peer.

By ramping up your free natural testosterone levels, Ostabulk rapidly increases lean muscle bulk, grows strength, stretches endurance and burns away unhealthy fat.

It is a product of the UK company Health Nutrition Limited (formerly Muscle Club Limited) and a part of the Brutal Force product line. Health Nutrition is the company behind dozens of supplements including some of the most recognizable brands in the market such as Prim Shred, Phen Gold, Testogen and Trimtone. The Butal Force product line includes DBulk, SBulk, ABulk and RADBulk.

Key Features
  • Grow quality, lean muscle.
  • Increase testosterone.
  • Boost strength quickly.
  • Quick-acting formula.


Common Ingredients





60 mg

150 mg

Vitamin D3

7.5 mcg

39 mcg

Ostabulk contains two and a half times more magnesium than D-Bal and over five times the Vitamin D3. Magnesium is vital for energy production, muscle function, managing depression, minimizing migraines, normalizing blood sugar levels, regularizing blood pressure and stopping constipation. Vitamin D3 enhances bone health by improving the body’s capability to absorb calcium.

The rest of D-Bal’s and Ostabulk’s ingredients are distinct.

Unique Ingredients in D-Bal

  • Ashwagandha - A herb that grows muscle size and strength, burns away unhealthy fat, mitigates stress, sharpens brain function, boosts energy levels, controls blood sugar, lowers cholesterol and reduces inflammation.
  • Methylsulfonylmethane - A naturally-occurring chemical that reduces muscle soreness, relieves muscle and joint pain, alleviates joint stiffness, reduces inflammation and boosts immunity.
  • Hyaluronic Acid (HA) - Abundant in the body’s synovial fluid and cartilage, it is vital for joint lubrication. HA also accelerates recovery from bone, tendon and joint injury while aiding development and growth of cartilage and bone tissue.
  • Tribulus Terrestris - A herb that boosts free natural testosterone levels leading to increased strength, muscle, energy and libido.
  • L–isoleucine - An essential amino acid that drives muscle development, leaner body mass, heals muscle injury, boosts energy, stretches endurance and elevates immunity.
  • Suma Root - A plant that elevates energy levels, strengthens immunity, lowers inflammation, manages pain and controls stress.

Unique Ingredients in Ostabulk

  • Vitamin B6 - Also referred to as pyridoxine, it boosts the metabolism of fat, carbohydrate and protein.
  • Vitamin K1 - Also known as phylloquinone, it supports bone health and prevents heart disease.
  • Zinc - Vital for immune function, protein synthesis, wound healing, growth and development.
  • D-Aspartic Acid - Increases free testosterone levels leading to firmer, large muscles and more efficient burning of unhealthy fat.
  • Nettle Leaf (Urtica dioica) - Binds with sex hormone binding globulin (SHBG) thus ensuring more free testosterone.
  • Panax ginseng - Boosts testosterone, enhances libido and increases dopamine.
  • Fenugreek - Maximizes strength, increases energy, boosts libido and accelerates metabolism.
  • Boron citrate - Lowers the body’s estrogen, prolactin and SHBG levels thus improving levels of free testosterone.
  • Black pepper - Increases the bioavailability of the supplement’s ingredients.

Side Effects

Both D-Bal and Ostabulk do not contain the dangerous ingredients of Dianabol/methandienone and Ostarine respectively. Built from natural compounds only, they do not have any known side-effects. As a routine precaution though, always have a word with your doctor before using any supplement. This is particularly important if you have an allergy, are on medication or have been diagnosed with a long-term health condition.

Price and Offers

Both D-Bal and Ostabulk go for $59.99 per bottle of 90 capsules. Similarly, when you buy two bottles of either brand, you get the third bottle free. 

D-Bal and Ostabulk both offer free shipping worldwide on all orders.

Ostabulk has a 100-day money back guarantee while D-Bal’s is 67 days. In Ostabulk’s case, the guarantee does not apply to single bottle purchases.

Pros and Cons



  • Quick, large and stable muscle gains. Burns away unhealthy body fat.
  • Boost energy, stamina and strength. Rapid post-workout recovery.
  • Sharper focus and elevated drive.
  • Manufactured in GMP-compliant facilities.
  • No prescription required. No known side effects.
  • Legal, healthy alternative to Dianabol/methandienone.


  • Only available on the product’s official website.
  • Results are contingent on combining the supplement with the right diet and exercise regimen.



  • Grows quality muscle, increases lean muscle bulk and burns away unhealthy fat.
  • Boosts strength quickly and stretches endurance.
  • Manufactured in US-based, GMP-certified and FDA-registered facilities.
  • No known side effects. No prescription required.
  • Legal, healthy alternative to Ostarine.


  • Results are contingent on combining the supplement with the right diet and exercise regimen.
  • Only available on the product’s official website.

Final Verdict

Everyone has different reasons for going for a muscle and bulk supplement. No supplement will therefore be the most appropriate for every single person. Some will be better served by D-Bal while others would see best results with Ostabulk. Still, since these two brands don't have identical ingredients, there will be differences in performance. D-Bal would seem to be the better option.

While Ostabulk contains much higher values of vitamin D3, this amount does exceed the daily recommended dose. At best, this excess is a waste. At worst, there are health risks of having vitamin D3 toxicity such as muscle weakness, falls, fractures, kidney stones, nausea, dehydration and heart disease.  

Also, at 15mg, Ostabulk has nearly 9 times more vitamin B6 than is required. Too much vitamin B6 in the body can lead to serious nerve damage that in extreme cases could diminish control of body movements. It may also cause light sensitivity, heartburn and nausea. 

D-Bal on the other hand keeps nutrient quantities within acceptable levels. And it offers better terms for the money back guarantee.

About the author 

Nicholas Khan

I am a certified fitness instructor and I write about supplements and testosterone products. I have been in the industry for over 10 years, and during that time, I have gained a lot of experience with different types of supplements. In my blog, I will discuss which ones work best for boosting testosterone levels and improving overall health.

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