Phena Lean vs Phentermine Review: Which Is Better For Weight Loss?

Phena Lean vs Phentermine: Which Is Better For Weight Loss?

Phena Lean vs Phentermine Summary

Phena Lean vs Phentermine, which is better for shedding unwanted pounds? If we had to choose between these two, we’d go for Phena Lean.

The main reason being is that Phena Lean is a supplement with a formula that shouldn’t cause major side effects if you follow the manufacturer’s recommendations, while Phentermine is a drug that is not safe long-term, and may cause serious adverse reactions if consumed in the long run.

But, because of a lack of ingredients and because it uses a proprietary blend, we can’t recommend Phena Lean for weight loss either. We’ve seen safer and way more effective fat burners on the market.

About The Products & Their Manufacturers

Phena Lean by Anabolic Warfare is a dietary supplement with the main focus on supporting your weight loss and fitness journey. It comes in a form of capsules, with 60 capsules per jar, enough to provide you with a 2-month supply.

There’s also Phena Lean Powder available on the market, with different flavors, but today we’ll focus on the capsules. More precisely, Phena Lean is claimed to help you:

  • Burn fat
  • Boost energy
  • Improve mental focus

Phentermine, on the other hand, is a prescription weight loss drug. But, do these really work? Are they safe?

Let’s find out!

Phena Lean vs Phentermine: Ingredients

Phena Lean Ingredients

Phena Lean uses many different ingredients for weight loss. The bad news is, all of them are included in 766mg of a proprietary blend.

In case that image didn’t load properly, each serving (1 capsule) of Phena Lean provides you with:

  • Vitamin B3 – 25mg
  • Proprietary blend – 766mg (consists of: Caffeine Anhydrous, Infinergy, L-Theanine, Theobromine, Ginseng Root Extract, Bitter Orange Fruit Extract, L-Tyrosine, Cayenne Pepper Fruit Powder, Lean GBB, Paradoxine, Huperzia serrata, Rauwolscine

Some ingredients that are in a proprietary blend are proven and effective for fat-burning. For example, Cayenne Pepper Powder has something called capsaicinoids, which are compounds within the pepper. These can, according to studies, decrease body fat to some extent.

L-Theanine, when combined with caffeine, may suppress your appetite, resulting in weight loss. L-Theanine, meanwhile, works to improve your sleep quality by promoting a relaxed state, while caffeine boosts your energy levels.

However, as we mentioned, these ingredients are included in a proprietary blend. That means that the dosage of each particular ingredient in that blend is unknown. So, you can’t be sure how effective or safe all of these ingredients are going to be.

We recommend avoiding supplements that use proprietary blends. That could mean that the manufacturer is potentially hiding something from you.

What About Phentermine?

Phentermine is a drug (a medication) often used for weight loss. The way it works is by suppressing your appetite, making your cravings for food less intense, and promoting a feeling of fullness. Keep in mind that this drug is used by clinically obese people who failed to lose pounds with a proper diet and an exercise plan.

This is not intended for people who’re otherwise healthy but perhaps want to drop only a few pounds.

Yes, phentermine can work for weight loss, but it’s definitely not a good long-term solution because of its potential side effects. It is not healthy to take this medication long-term.

If we had to choose between Phena Lean and Phentermine, we’d go for Phena Lean, simply because it is a supplement that may help you to a little extent if you have an established calorie-restricted diet and an overall healthy lifestyle. It is definitely safer than consuming a stimulant drug long-term.

However, both Phena Lean and Phentermine have many cons, so we can’t recommend either one for weight loss. Phena Lean won’t be significantly effective because of a proprietary blend and a lack of core ingredients. There are many alternative supplements that contain potent, safe, and well-studied ingredients that work substantially better for burning fat.

Phena Lean vs Phentermine: Side Effects

Because of a proprietary blend, we can’t be sure if Phena Lean contains some overdosed ingredients that could potentially cause side effects.

However, the whole blend equals 766mg, so we can assume that it shouldn’t cause any harm if you follow the manufacturer’s recommended daily dosage.

On the other hand, Phentermine, with long-term consumption may cause side effects such as increased heart rate, nervousness, sleeplessness, and constipation. As we mentioned before, it’s not a safe idea to consume this drug in the long run.

Phentermine could be a potent short-term solution for people that suffer from obesity, but we think a healthier option for cutting weight would be a supplement that actually works alongside a proper healthy diet and a healthy lifestyle.

Phena Lean vs Phentermine: Customer Reviews

Phena Lean does have a lot of mixed reviews on Amazon. About 50% of users left a 5-star review. Here are some of the comments they left:

I ate a full breakfast and drank plenty of water, took this pill and shortly after, my heart was racing so fast that I got dizzy and felt like throwing up. It took a while to get my heart beat back down. Never again.– Marissa

I have been using it for almost two weeks, it does curb your appetite…but I noticed that increases your heart rate like crazy and it makes you feel super hot and shaky… So I would recommend skipping coffee…– Anabeli

I am used to fat burners. This one gave me the energy just didn’t curb the appetite. I don’t want to feel hungry if I am paying 60+$ on appetite suppressants.– Britney

Phentermine also received mixed reviews on the website called Here are the comments from some of the customers:

“I had severe headaches, blurred vision and I could NOT produce a bowel movement without laxatives, while on this medicine.” – Deadre

“This medication really helps finish my appetite. With calorie reduction and a daily gym routine I have been losing about 7 lbs per month on average.” – Anonymous

 “This doubles my heart rate, feel extremely nauseated, and like I’m bout to die” – Anonymous

Phena Lean vs Phentermine: Pricing

Phena Lean is currently unavailable on Amazon and in Walmart. Alternatively, you can purchase it on the official website for the price of $59.99 for a 2-month supply. Considering the poor ingredient formula, we don’t think it’s worth the money.

Phentermine is usually prescribed if other methods of weight loss didn’t work for you. Depending on the pharmacy you’re buying it in, the product costs approximately $13 for 7 tablets.


All in all, we are delighted with neither Phena Lean nor Phentermine. Phena Lean uses a proprietary blend and lacks a lot of ingredients that would make it far more effective at burning fat. We don’t think it will promote any significant results for your journey.

On the other hand, Phentermine does work for obesity short-term but isn’t safe in the long run because it may cause adverse reactions.

All in all, we’ve seen other supplements on the market with safe, well-studied, and properly dosed ingredients that actually work for weight loss.

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