Phen375 Reviews

Phen375 is a pill that encourages a healthy way of losing weight. This weight loss pill is targeted to those who have a lot of weight to shed and have already tried every diet program and weight loss exercises without success.

It contains a very potent formula that is proven effective for those who struggle to eat less and have very little motivation and energy to stick to a workout routine.

Although the name suggests similarities, do not confuse Phen375 with the prescription pill Phentermine. Also, note that a similar competing pill, PhenQ, is manufacturered by a different company. We compared the 2 pills to show the differences and similarities.

We recommend that you purchase the pills from their official website.

Benefitsphen375 official bottle packaging

  • An effective appetite suppressor
  • Contains thermogenic ingredients that speed up metabolism
  • The US formula contains stimulants that improve motivation and energy.

Latest Customer Reviews

Below are real and unbiased reviews from individuals who tried Phen375. Please leave your review if you already tried this pill.

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3 months with good results


Losing weight was very hard for me in the past. I was on a plateau for a few months, which was very depressing. It’s also normal for me to lose some and then gain back the weight quickly.

I started on Phen375 3 months ago. No unwanted side effects, so far, just an upset stomach on the first day. I found out that you can counter this by drinking a lot of water.

I continued my usual diet – strictly no sweets, although I have a cheat day once a week. I also spend at least 20 minutes on the treadmill every day.

The first month, I lost 5 pounds. That’s not bad at all for me. I lost 8 pounds in the second and third month, so that’s a total of 21 pounds in 3 months.

I am super happy because usually, I would gain the weight back within 2 to 4 weeks. This time, however, my weight loss is very steady.

I break out


Now I need to choose whether to lose weight or to keep my acne. I have a little breakout every now and then. It’s quite random and this never happened after high school. I have clear skin for about 3 years now, and it’s flaring up again.

I tried the pill for a month with good results. I lost 7 pounds in a month without exercise. But I’m not sure how to deal with these pimples as I never read anyone else complaining about this.

It works if you work


I bought a 3-month supply from the main website. I did not lose any weight in the first month. I guess if you help this product work on your body, it will help you better too.

I started on an exercise and watched my diet carefully. There’s this diet plan where you eat lots of proteins and lessen that carbs intake. I think this works a lot.

Walking also helps. I just circle around our block every afternoon, you don’t need to go to the gym. I lost 20 pounds after finishing my 3-month supply.

Very satisfied


I have been using this for 3 weeks now, and I am satisfied with the results. I am losing 2 to 3 pounds per week. The key is drinking a lot of water every day and sticking to a healthy diet plan.

Drop the foods that are high in carbs, and eat lots of veggies and fruits especially when you are craving. Also, doing simple exercises like walking or running help a lot. If you can walk to your destination, do so.

Stopped taking the pill


First few days of using the pills gave me an upset stomach. I don’t function well at work anymore as I was always about my stomach. Sometimes I also get a little dizzy.

I tried to call the customer support but they are unresponsive to my calls. I am from the US so I tried the local number and even tried the international line but I cannot connect.

I stopped taking the pills after a week. I lost a total of 1.5 pounds from this pill without changing my diet or exercising. I walk to work, though so maybe that helps with boosting the pill?

I’m just demotivated with the side effects so I think I’m better off the pill.

phen375 rated 3.5/5 based on 25 reviews.

Ingredientsphen375 supplement facts

The regular Phen375 contains a powerful blend of potent ingredients as described below:

  • Calcium Carbonate 36% Grain – Helps in maintaining optimal weight. Lack of calcium carbonate has been found in people who are obese.
  • Chromium (Picolinate 12%) – Maintains a healthy blood sugar levels and helps suppress appetite and sugar cravings.
  • L-Carnitine (L-Tartrate) 68% – Encourages the muscles to burn more fat. L-carnitine makes it easier for the body to collect fats from the bloodstream in order to convert it into useful energy. This study shows that L-carnitine is a helpful agent for weight loss.
  • Caffeine Powder Anhydrous (Capsicum frutescens) – A thermogenic that increases the body temperature and speeds up the metabolism. Another study proved that subjects who have higher caffeine intake lost more weight, developed a slimmer waist and loss more fat mass.
  • Cayenne (Capsicum) 10M HU/G – Another thermogenic ingredient that focuses on increasing the body’s internal temperature in order to process more calories.
  • Dendrobium Nobile Extract (from orchids) – This extract comes from a specific type of orchid. Dendrobium Nobile Extract is usually used as an alternative to DMAA – a dangerous ingredient that is illegally added to most weight loss pills.

The US formula has these additional ingredients:

  • Citrus Aurantium (Fruit) extract – An ingredient that comes in different names such as bitter orange, Seville orange and synephrine. This orange peel extract has strong weight loss power that is present in most stimulant-like ingredients. It works like Ephedra – an element that is banned worldwide for its negative side effects that can be life-threatening.
  • Coleus Forskolii Root PE – Promotes thyroid hormones that prevent further weight gain.

This pill does not contain the prescription ingredient Phentermine.


  • Contains only safe and natural ingredients.
  • Effects can be seen as fast as the first week.
  • Encourages better sleep, healthier eating habits, and more energy levels.
  • Establishes regular bowel movements.


  • Expensive
  • Common side effects include upset stomach, headaches, and dizziness.
  • Contains a combination of citrus Aurantium and caffeine that can lead to some serious side effects when taken together.

Safety Precaution

  • Must not be taken with caffeine-containing foods.
  • Not for individuals below 18.
  • Not for pregnant and breastfeeding women.
  • Talk to your doctor first if you have a chronic illness, or taking a medication as it can worsen certain illnesses and can counteract with some medications.

Side Effects

Phen375 is generally safe for consumption, but the ingredients may cause the following side effects:

Ingredient Possible Side Effects
Calcium Carbonate Gas and belching
Chromium Headache, nausea, dizziness, mood changes, impaired judgment, thinking, and coordination as well as skin irritation
L-Carnitine Upset stomach, nausea, vomiting, diarrhea, heartburn, seizures
Caffeine Powder Anhydrous Nausea, vomiting, increased heart rate, stomach irritation, nervousness, restlessness, insomnia
Cayenne Upset stomach and irritation, flushing, runny nose, sweating
Dendrobium Can increase the chances of seizure on some people
Citrus Aurantium Can increase the risk of high blood pressure, heart attack, stroke and fainting when taken with caffeine or herbs that contain caffeine
Coleus Forskolii Can decrease blood pressure and increase the risk of bleeding especially after surgery

It is important to note that Phen375 is dangerous to take with coffee and other caffeine-containing substances. The energy boost given by this pill should be enough to go through your day without coffee.

My Personal Result

I stopped taking other products prior to trying this pill. Although I continued with my existing diet, I lessened my workout routine to only 3 days a week, and 30 minutes per day while taking Phen375.

I take this tablet 20 minutes before breakfast. It is optional to take a second tablet during the day, but I preferred taking only one. Take note that it is not advisable to take the tablet after 2 pm as you will experience trouble sleeping at night.

After finishing my three-month supply, I lost 22 pounds. With only 30 minutes of workout three times a week, I believe that this is a great result.

I didn’t experience serious negative side effect while on this pill. On the first week, however, I had a slightly sour stomach and some random headaches. I went to the toilet more often and it smelled worse than my normal bowel movement. The horrible smell gradually stopped after 2 weeks, and my bowel movements finally settled down and became normal again.

Where to Buyphen375 official website homepage

Phen375 is only available for purchase from This pill is not available on retailer websites like Amazon, and cannot be purchased from local stores.


Each bottle contains 30 tablets.

1 Bottle: $65.95

2 Bottles (with 1 free bottle): $131.90

4 Bottles (with 1 free bottle): $187.96

During the writing of this review, the website is offering two free bottles when visitors provide their email through this pop up. 2 free bottles offer on email sign up

About the Manufacturer

Phen375 is distributed by RDK Global, a company that has been in the dietary supplement industry for more than 7 years now.

The company is not a BBB accredited business and has an F rating due to customers complaining about their customer service. Most customers are disappointed that the manufacturer is not compliant with the 60-day money back guarantee when they call the support.

RDK Global is based in Dallas, Texas, where the bottles are being shipped from. They also have a P.O. Box in Nottingham, UK.

They can be contacted at 855-281-8098 (for US domestic calls), 214-446-0158 (for International calls, and 00441236-490-065 for calls coming from within UK.

The manufacturer claims that Phen375 is being processed in an FDA-approved laboratory to ensure a high-quality production of the pills.

Money Back Guarantee

The company is willing to accept order cancellations as long as you inform them of the cancellation of your order prior to shipping. In case your order has already been shipped, your request for cancellations won’t be entertained anymore.

You are allowed to return the items within 48 hours of receiving the package and you will have to pay for the shipping fee.

The manufacturer is willing to give a full refund if you did not see positive results within 30 days of use. You can request for a refund within 60 days after purchase.

Past Reviews

Read older reviews for Phen375.

Best alternative to Phentermine


My doctor gave me Phentermine last month and told me I will be taking it for the next three months.

The whole month being on Phentermine was horrible but I trusted my doctor so I finished the whole bottle.

I had terrible headaches that I feel dizzy every day. After coming from work, I’m either satisfying my hunger or in bed napping. I did my research and found this product. Went to my doctor the same day to get advice.

He actually told me to try since it contains natural ingredients that are safer compared to what Phentermine has. I avoided soda, candies and overall sweet stuff since 4 months ago.

Sometimes I don’t eat, honestly. I lost 50 pounds since I gave up sweets, and started on Phentermine last month.

My stock of Phen375 arrived 2 weeks ago. I am so thankful that the headaches are gone. I don’t experience any bad side effects with this new pill, so that’s what I told my doctor. He was gad and encouraged me to continue.

During the 2 weeks of taking this pill, I lost a total of 8 pounds.

PS: I have to lose 100 pounds more so I will be buying more bottles at least until I reach my goal.

Pills plus fasting


I lost 1.5 pounds in the first week of taking the pills. The following week, I tried the method called intermittent fasting and was able to lose 3.5 pounds. The numbers a steady now that I have established my diet.

I also started running this week, but haven’t weighed in yet so I can’t tell if the running has improved my progress. So far I think this pill is good enough.

Didn’t work


Makes me very sad that I bought 2 bottles, finished them both including the third (free) one and still cannot see good results.

If I am not plateauing, I am gaining about 1-2 kilos per week, lose them the next week and gain them back again. And I thought I found the right pill for me.

Lost 6 pounds in 1 week


I already have a regular workout routine and a very predictable diet that I have been following for 6 months now. I am losing weight steadily but wanted to speed up the process so I bought one bottle.

When I checked my 1-week progress, I was so happy to see that I lost 6 pounds! I think that’s a good progress because I usually lose max 4 pounds, averaging 2.5 a week. I just placed another order of 3-month supply today.

Unbelievable customer support


I bought a 3-month supply of this product a few months back. I was doubting when I read the label because I noticed that the ingredients are almost the same with HCG drops that I have been taking before.

I only have a bottle now because I sold the other 2 as I am not confident in using them, I am a little confused.

Note that I am looking for HCG drops alternatives because I don’t like the effects the drops are giving me. I easily gain weight if I don’t monitor my food intake, and that’s a real struggle for me.

Anyway, I finally opened the bottle a week ago and started taking it regularly every day. So far, the effects are good. I have more energy, and I don’t crave much anymore. I tried logging into my account with them on their site, re-read their content and see if I really want to purchase again.

By the way, the prices are too high I can say. But since I am seeing good results in terms of energy levels and appetite suppression, I am trying to decide if I should buy again.

Problem is, when I visit the site from my laptop, the website doesn’t look like the one I visited before. This is my first time visiting their site from my laptop. I tried to go to the site using my desktop and I see the original website where I signed up.

I was confused so I called the customer support. The guy was uninterested and was not able to help much. Just told me to login whichever site lets me log into. Well, that’s not the answer I am expecting, and he sounds sarcastic as well.

I was so turned off by this and I felt so disrespected.