There’s quite a buzz surrounding this citrus extract. So our in-depth review focused on Sinetrol side effects, ingredients and clinical studies. Additionally, user comments and remarks were taken into consideration. Then, we summarized and refined to give you the info you need.
What is Sinetrol?
To start, Sinetrol is an ingredient, comprised of citrus polyphenolic extracts of red orange, grapefruit, and orange.  Supposedly, the extract works by inhibiting the PDE enzyme and stimulates lipolytic activty.  In essence, it enhances the fat-burning process. There are also claims it may help boost metabolism and speed up fat loss.
Sinetrol was introduced by France-based company NB Consulting. Throughout the official website, there’s information relating to use, research and applications. We like that we found some favorable reviews and that it contains a few natural ingredients, but read on…
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Minimal Results – “Concerning?”
One issue we have is with minimal weight-loss results. “There are numerous user comments and reviews posted online regarding results from Sinetrol ingredients,” said our Research Editor. “But, the science behind it paints a different picture.”
One customer stated, “I noticed no noticeable weight-loss or effect from the product.”
However, a different person commented, “It reduces my appetite and I think I’m losing some weight.”
The opposite was found in other reviews of Sinetrol.
According to the International Journal of Food Sciences and Nutrition, “they received daily for a 12-week period 900 mg of a Citrus-based polyphenol extract, Sinetrol…the efficacy of the supplement improve both overweight process and correlated skeletal muscle mass metabolism.” 
Reviews of Sinetrol – “Discouraging?”
Unfortunately, there are quite a few discouraging user comments posted online for Sinetrol. For example, one person said, “Not sure about it. I have been on them for 2 weeks and I have not seen any results at all.”
But, a different customer revealed, “Did the research and haven’t found where anyone lost weight.”
As is the case most of the time, there are positive reviews of Sinetrol.
Another posted, “I read that it offers antioxidant support, so that’s a good thing.” 
The research we’ve conducted has revealed that if there’s a certain aspect of a weight-loss ingredient or diet product that is quite difficult or bothersome (minimal results, discouraging user comments, side effects) the likelihood of long-term success is slim. Therefore, if Sinetrol does fail to produce real effects in a lot of people, this could be a major dilemma.
The Science – “Find Any Evidence?”
We at DietSpotlight look for solid science used to support any applicable weight-loss claims. Regarding Sinetrol, there are studies relating to the use of citrus extracts and improved cardiovascular health, fat loss and burning.  The only concern was the amount and the time-frame to see results. While we like that there are some studies, the results are mixed.
What Users Are Saying
"These capsules work amazingly well for my seasonal allergies. Relieve post nasal drip, congestion, & itchy eyes with no noticeable side effects, such as drowsiness."
"Doctor suggested I take this for sinus/colds/allergies and it seems to help for the first day or two then it stops. It did not work for me but the doctor seemed to be big on suggesting it."
"Sinetrol capsules don’t seem to be doing anything for sinus."
The Bottom Line – Does Sinetrol Work?
Will Sinetrol help you lose weight? Well, we like that it contains natural ingredients and that there are some studies relating to efficacy, but the lack of concrete evidence showing users will burn fat and improve long-term weight-loss leaves us concerned . There’s also the issue of consumers no seeing results and the presence of discouraging reviews.
If your’re looking to lose those extra pounds, we suggest going with a product containing ingredients backed by science and connected to positive dieter reviews.
Among the best products we’ve seen this year is one called Dietspotlight Burn. The supplement contains four clinically-tested ingredients, which have been shown to help boost fat loss and elevate metabolism. There’s no mention of harmful side effects and users are talking about seeing great results.
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