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Slim Science

The Slim Science company manufactures two supplements. This review is focused on ‘Slim Science Appetite Suppressant’ which is the first product listed on the company website. The product contains six active ingredients and claims to beat the pangs of hunger by suppressing appetite throughout the day.

slim science

Slim Science Pros
  • The company offers a 30 day money back guarantee if a customer is not satisfied with the product
  • The company has an all natural ingredient guarantee
  • The Slim Science website offers lots of information to their customers including testimonials, ingredients and contact information
  • The majority of reported possible side effects for all ingredients are minor or uncommon.
Slim Science Cons
  • Slim Science is made by a company based in the US so costs are given in USD and not GBP
  • The product is only available on the highstreet in the US. UK buyers can only purchase the supplement online
  • After a customer has trialled their free bottle, if they do not want to continue with membership, they must cancel within 18 days of receiving their free bottle or they will be billed for another order of £38.56 plus a £3.21 shipping and handling cost
  • The majority of advice on the FAQ page is focused on costs and shipping rather than information about the product itself

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Slim Science Review

The Slim Science company claim that their product aids in three different areas of weight loss, to ‘help promote a healthy weight, aid in caloric reduction, and support appetite control’. All of these are allegedly reached through appetite suppression which is what this supplement claims to provide its customers. The supplement can be used by both men and women as it is aimed at general weight loss through diet rather than the specific physical needs of males or females. Slim Science has become more popular in recent years because of its unique approach to weight loss and claimed all natural ingredients.

Slim Science Claimed weight loss benefits

The Slim Science dietary supplement mainly claims to suppress appetite; however, after looking at the alleged effects of other ingredients the product does have other apparent benefits. The product also claims to work as a fat blocker which stops fat being absorbed into fat storage cells within the body. The supplement also contains essential fatty acids and other nutrients which could improve internal functions such as digestion and brain activity.

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How Slim Science Works

This dietary supplement claims to work by satiating hunger and the impulse to snack throughout the day. By not wanting to overeat, the product reduces the frustration behind dieting and aids in reducing the customer’s intake of food and decrease in body weight. The product also allegedly stops some of the fat from food being absorbed into the body and stored in pockets causing weight gain. Overall, Slim Science claims to provide the body with some of the nutrients which maintain it in a healthy state. However, full effects will more likely be reached if the supplement is taken alongside regular exercise.

Slim Science contains a patented ingredient called Citrimax which is an extract from the Garcinia Cambogia fruit. This natural fruit ingredient has become extremely popular in recent years because it contains the chemical Hydroxycitric Acid (HCA) which claims to aid in weight loss to a high degree of effectiveness. This chemical allegedly works by enhancing brain function and is often used for problems with depression and anxiety. Its use in Citrimax ‘has shown to increase fat burning’, therefore helping individuals lose weight more rapidly than they would by dieting and exercise alone. The Slim Science ingredients page has more information on Citrimax and its claimed effects.

Satiereal is another patented ingredient of Slim Science which is made of saffron, extracted from the saffron crocus flower. Slim Science claims that they use it in their product as an appetite suppressant because some studies show that it increases hunger satiation. Where some appetite suppressants work affect the digestive system, it is said that Satiereal acts as a neurtransmitter to directly lessen urges to overeat that source from the brain. More information about the uses and basic facts about saffron extract is widely available.

Slim Science contains this nonessential amino acid to promote weight loss through a boosted metabolism. There have been claims that L-Tyrosine is a ‘precursor to neurotransmitters’ which could affect brain function and improve issues of stress and depression. This could be useful when included in a dietary supplement such as Slim Science, because depression and stress are often associated with weight loss. Therefore, L-Tyrosine could prevent the weight gain problems linked to mood and emotion. Some sources also claim that L-Tyrosine also acts as an appetite suppressant because of its alleged neurotransmitive effects. Some studies offer details of L-Tyrosine and its uses.

Gymnema Sylvestre Extract, listed as ‘Gymnema’ on the Slim Science ingredients list, is used in the supplement because of scientific claims that it dulls the taste of sugar when in the mouth. This ‘anti-sweet activity’ (Slim Science) could reduce an individual’s desire for sweet foods and result in weight loss. The chemicals which produce this alleged effect are found in the leaves of the Gymnema plant and are extracted for use in dietary supplements. It is also claimed to stop some sugars from being absorbed into the blood and to increase the amount of insulin in the body by producing extra cells within the pancreas where insulin is created. The medicinal uses of Gymnema are discussed online.

Mucuna, or Mucuna Pruriens, contains a chemical called L-DOPA which is associated with the neurotansmitter, dopamine. It works in a very similar way to the amino acid, L-Tyrosine, as detailed above. There have been claims that it may reduce stress and mood problems which could potentially lead to over-eating and weight gain. There are also claims that it blocks sugar receptors on the tongue which could reduce cravings for sugar. There are further pages for Mucuna which have details about the uses and effects of the extract.

Vitamin D3
This ingredient is not listed on the ingredients page of Slim Science, however, it is listed on the product label which is available to view online. Vitamin D3 is a vitamin which is essential to maintain the body in full health; it is a strand of the D vitamin which is usually gained through sun exposure. Holland and Barrett, a UK based supplement retailer, provide some information about the vitamin as they sell Vitamin D3 tablets as a separate supplement and not combined with other ingredients.

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Key Ingredients

In recent years the Slim Science supplement has become more popular with customers because of its unique blend of six ingredient ‘groups’ which claim to suppress appetite and aid in successful weight loss. Slim Science claims that its ingredients are all 100% natural, although some of the included chemicals and nutrients are naturally produced by the body so may not be needed. However, they may act as an additional boost of nutrient which the body needs to shed fat and pounds more easily than by diet and physical activity alone.

The main component of this ingredient CitriMax is Garcinia Cambogia extract. This plant has become a very popular part of many dietary supplements in recent years because of its claimed success as a weight loss aid. Garcinia Cambogia is an Indonesian plant which was originally grown for its sour fruit which is used in Asian cooking. It has also been used in traditional Eastern medicines because of its alleged effects upon the digestive system, apparently curing problems with the stomach. Some sceientists claim that the Hydroxycitric Acid which the extract contains, is what helps increase weight loss, although no studies have produced concrete evidence to support this.

The key part of Satiereal, a patented ingredient of Slim Science, is extracted from the saffron crocus flower. The Satiereal website has more details about the ingredient and states the uses of the ingredient in products such as dietetics, supplements and everyday foods. Most of the worlds saffron is produced in Iran, yet it is grown in certain parts of Asia and southern Europe. The saffron is hand picked from the crocus flower when it is fully matured; it is one of the most expensive ingredients in the world (weight value).

L-Tyrosine is a nonessential amino acid which the body produces from another amino acid called phenylalanine. It is associated with the effects of neurotransmitters including dopamine which is thought to affect chemicals in the brain, leading to changes in mood. One medical source claims that ‘is involved in the structure of almost every protein in the body’ and plays a key role in the maintenance and operation of many bodily functions. It is often used in medicine to help with stress and anxiety problems and there have also been claims that tyrosine can help boost the performance of athletes; however, there is no scientific evidence to support this claim.

This ingredient is native to India and Africa and is grown in the form of a shrub. The leaves are often used for medicinal purposes such as supplements like Slim Science. It is claimed that the leaves of the Gymnema plant contains chemicals which dulls the sugar receptors on the tongue, this is the reason why it is used in many dietary pills. However, it is also suggested that it should be taken alongside other ingredients such as Hydroxycitric Acid to achieve the best possible results. More information on the usage and effects of Gymnema online.

Mucuna, more commonly known as cowhage, is grown as a bean-like plant in the wild tropics of India and the Bahamas. The ingredient contains levodopa (L-dopa) which is a chemical that is changed to dopamine in the brain. It is often used to treat illnesses such as Parkinson’s disease but is also used in weight loss products because of its claimed effects on mood which could lead to over-eating. Mucuna has been used for thousands of years for medicinal purposes and is still very popular today because of the effective results of the Mucuna extract, although these have not been fully proved through scientific study.

Vitamin D3
This strand of Vitamin D is crucial to the activity of the body. It can be obtained through foods and sun exposure, yet Slim Science offers their customers an extra boost of the vitamin to possibly increase weight loss and maintain a healthy body. The National Institutes of Health provide a fact sheet about vitamin D with guidelines about sources and effects of the vitamin. This guide states that there is a possibilty of having vitamin D toxicity which could lead to health issues, including weight loss. This may raise concerns that by taking extra vitamin D through Slim Science, the body could gain unneeded amounts of Vitamin D3.

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Clinical Studies

Clinical Researcher 538
Although Slim Science claim that all of their ingredients are 100% natural, it does not mean that all of the ingredients have been fully researched; also the company provides no research sources on their product website. The below section gives brief details about the clinical research which has been undertaken for each of the active ingredients of Slim Science and explores their possible success and effects when taken by Slim Science customers. It is important to have authoritative results of clinical studies because it can give an ingredient its reputation in the eyes of a customer.

A clinical study was undertaken in 2007 on Zucker rats to evaluae the effectiveness of SuperCitriMax, used in Slim Science. A group of rats were given water containing CitriMax (HCA-SX) and multiple functions were measured including weight gain. Scientists discovered that the CitriMax ‘supplementation in obese Zucker rats reduces food-intake, body weight gain’ over the seven week controlled period of experimentation. This evidence provides a good grounding to build further research on CitriMax although cannot stand alone as proof that the ingredient is an effective weight loss aid and poses no possible dangers to supplement users, and in this case Slim Science customers.

A recent clinical study in 2010 measured the effects of Satiereal (saffron extract) on slightly overweight, but otherwise healthy women. The report for the study claims that this all-female study group was chosen because snacking is an impulsive behaviour which affects women more than men and is frequently linked with stress. The study is best outlined in the words of the NCBI scientific report:

‘mildly overweight women (N = 60) participated in this randomized, placebo-controlled, double-blind study that evaluated the efficacy of Satiereal supplementation on body weight changes over an 8-week period’

After setting these controlled variables, there were some that were left uncontrolled such as caloric intake which was given no specific limitations; this could affect the outcome of the results. Compared with the placebo group, those that took Satiereal tablets were measured as having decreased weight gain and a significant decrease in snacking frequency after the eight week study period. In conclusion, the study discerned that alongside a healthy diet, Satiereal could help an individual lose weight by satiating appetite.

In 2001, Tyrosine was tested on a group of mice to determine its potential weight loss effects; however, the study only took place over two weeks so the results may not be substantial enough to hold up authoritative evidence. All mice were fed the same diet and underwent the same level and amount of physical activity by running on a wheel. The combination of the tyrosine, physical activity and restricted diet resulted in extreme weight loss, although it was discovered that this was not due to the tyrosine injections and instead caused by the 22% increase is activity. However, the study did also show a decrease in food intake which could support the claim that tyrosine works as an appetite suppressant because it contains the neurotrnasmitter dopamine. The full report of the clinical study is available on the NCBI website.

Gymnema has been claimed to have antiobesity effects on the body because of its alleged ability to block sugar receptors. A recent clinical study from 2012 tested these claims on Wister rats which were at first fed a high fat diet for 28 and then given Gymnema for a further 28 days. The high fat diet caused extreme weight gain in the rats as would be expected, yet the treatment of Gymnema that followed decreased these effects significantly supporting potential antiobesity properties. Of course these extreme weight gains and losses cannot be used as substantial evidence for the success of Gymnema because the results were not measured under the same extreme circumstances as a supplement user would take Gymnema in a product such as Slim Science.

A recent study from 2011 evaluated the effects of Mucuna Pruriens Seed Extract (Mucuna) on diabetic Wister rats. Along with measuring the blood glucose of the rats that were given Mucuna, weight loss was also signified by the results. The blood glucose of the rats reduced by over half which supports the extract as having strong anti-diabetic effects as well as weight loss effects. However, clinical research on Mucuna is extremely limited and there is not much to substantially support claims of weight loss. Studies on the ingredient all focus on other medicinal aspects of Mucuna and weight loss is always a bi-effect of other treatments of illnesses such as Parkinson’s disease and diabetes. This lack of research leaves Mucuna with a weak potential for weight loss effectiveness despite its popularity in many dietary supplements such as Slim Science. This does not however suggest that this ingredient is unsuccessful because there have been some results, such as the ones detailed above, which claim that Mucuna could act as a weight loss aid.

Vitamin D3
Vitamin D3 is not included in Slim Science to act as a aid to losing weight, it is instead included to support the other ingredients which could potentially help an individual lose weight. A clinical study (2014) has tested the effects of vitamin D3 supplementation during weight loss in a placebo, double-blind trial on postmenopausal women. Two groups of 109 obese or overweight females aged between 50 and 75 were chosen to undergo a course of Vitamin D3 or placebo pills alongside a weight loss programme consisting of a low fat diet and regular aerobic activity. On average, the women who took the vitamin D3 supplements lost slightly more weight than those who were given the placebo pill. However, the trial concluded that Vitamin D3 did not effect the weight loss achieved by diet and physical exercise. However, the inclusion of Vitamin D3 in Slim Science may not be completely futile as it provides the body with crucial nutrients which it needs to maintain good health

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Weight Loss Power: 60/100

Many of the ingredients have been tested for effectiveness and the majority of trials support this to some extent. However, Slim Science only focuses on one aspect of weight loss, appetite suppression, which may be ineffective if the customer does not take it as directed and alongside a healthy diet and physical exercise. All positive reviews claim that the product achieves moderate to good weight loss effects when taken as directed on the product label. There are some negative reviews which claim little or no effects occurred but that could be due to the individual and how they have been using the product.

Speed of results: 50/100

There is very little information about the Slim Science speed of results. After looking on retailer websites such as Amazon and GNC the reviews seem to be mixed, although there is not a large number of reviews on which to base a decisive opinion. This section remains relatively balanced because of the lack of information given by both the manufacturer and other retailers.
Appetite Suppression: 80/100

The majority of positive reviews on product websites claim that Slim Science acts as an effective appetite suppressant and the ingredient all work to some degree of success. This seems to be the strongest element of the supplement considering that it is the products main aim as a weight loss supplement, hence the name ‘Slim Science Appetite Suppressant’.
Long Term Results: 20/100

Slim Science and seller websites give no information about any long term results of the product. There is also a lack of information about how long a customer can consume the Slim Science supplement for. Each bottle contains 90 capsules which is enough for a month, yet membership to the company results in one bottle being sent every month. This indicates that there is no limit to the period of time over which the product can be taken. However, this also suggests that a customer must keep on taking the supplement to achieve weight loss success and if they cease to use the product, results will stop also.
Safety: 50/100

Some of the ingredients come with a mild risk of side effects although very few are considered severe. There is also a lack of ingredient research that has been undertaken by scientists which intimates that there could be safety issues that have not yet been uncovered. However, Slim Science claim that all of their ingredients are 100% natural and could have less possible side effects than other artificial ingredients used by other dietary supplement companies.
Value for money: 40/100

To buy a months worth of Slim Science supplements it would cost over £25 from all sellers including Amazon and GNC. Considering that the product only targets one aspect of weight loss and some of the feedback and reviews are sceptical about the effectiveness about the product, this could be a little steep in terms of price. However, statistically this only works out at under £1 per day which is good value if the product achieves the desired weight loss effects.

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Slim Science Side Effects

Although Slim Science claims that all of its active ingredients are 100% natural, it does not mean that they are without possible side effects which may occur when the product is regularly consumed as directed. Studies on each ingredient have revealed some possible side effects of different severities from mild to serious. The Slim Science label does not give details about possible side effects, but the GNC website does provide customers with some health notes which could be useful to advise a potential buyer. All information about possible side effects of the ingredients are available from various authoritative sources, some of which are linked the below section.

There are no authoritative sources which discuss the possible side effects of CitriMax as a stand alone ingredient but there is information about the potential effects of Garcinia Cambogia which is the main component of CitriMax. The Garcinia Cambogia extract has very minimal side effects and is considered ‘possibly safe’ for use under a twelve week period. The main possible side effects will occur as the body adjusts to the extract; these include nausea and headaches.

Saffron, the main ingredient in Satiereal, is deemed ‘possibly safe for use’ when consumed orally as medicine for no more than six weeks. This ingredient has relatively minor side effects hence why it is used in cooking all over the world. However, it should only be taken in small doses as large amounts of saffron could cause side effects such as dry mouth, headaches and nausea – although these symptoms are still only minor.

L-Tyrosine is considered relatively safe for use in small amounts considering it is found in everyday foods such as bananas, milk and soy products. The UMM website give some advisory noted about interactions with other medications such as thyroid medicines because tyrosine could increase thyroid levels in the body and possibly trigger migraines and headaches. However, these above symptoms are the only mentioned effects of tyrosine which are all relatively minor. However, it is always important to get advice from a medical professional if you have any ongoing illness or take any other medications and want to start taking L-Tyrosine as part of a dietary supplement.

Information is lacking for Gymnema and its effects although according to the research that has been undertaken already, there are no apparent side effects of Gymnema apart from one case of liver toxicity which is unsubstantial evidence to suggest any danger. There may be other side effects of this ingredient but without the proper clinical research these are not recorded for further precautionary guidelines.

There is some information that suggests that some forms of Mucuna could be possibly unsafe for use. However, a powdered form of the cowhage seed (mucuna pruriens) is possibly safe when taken by mouth for up to twenty weeks. This does not mean that there are no side effects associated with this form of mucuna, some of the more common symptoms include nausea and bloatedness. There are also some more infrequent effects which include vomiting and insomnia. It is crucial to get advice from a GP or other medical professional if you have any ongoing illness or are pregnant/breastfeeding. It is also sensible to get advice from a doctor if you are in good health but are still thinking about using Mucuna as part of a weight loss supplement.

Vitamin D3
Vitamin D3 is a natural vitamin which can be obtained through many foods as well as sun exposure, therefore it is a relatively safe supplement to consume. However, there have been claims of Vitamin D toxicity when too much is consumed in a short period of time. This could be due to the fact that the body natural obtains vitamin D on a daily basis and by taking a supplement which contains extra doses of the ingredient, the body could take in excess amounts which is not needed. If too much Vitamin D is taken then it could cause fatigue, weakness and nausea, however, it is not common for normal amounts of the vitamin to cause such symptoms.

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How To Use

According to the label of Slim Science Appetite Suppressant the customer should take 3 capsules per day. The label also advises that each capsule should be taken 30 to 60 minutes before each meal, preferably with water. GNC, a Slim Science retailer, also advise that a customer should ‘consult a health care practitioner before use if you are pregnant or nursing, have a serious medical condition or use prescription medications’. One bottle is sufficient for a month course of the supplement as there is 90 capsules per bottle and three are to be taken each day. Other than these brief details there is no other guidance on how to use the product. However, the Slim Science website does have a ‘contact us’ page where customers can ask any questions that they may have about how to use Slim Science or any other issue.

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Who Makes Slim Science

Slim Science Appetite Suppressant is made by Slim Science which is a weight loss supplement brand based in Utah, USA. The company only makes two product, the appetite suppressant detailed in this review and a thermogenic supplement aimed at boosting metabolism. As the company only manufactures two products, it may not hold a particularly strong reputation, but this does not mean that their products are unreliable and ineffective. The company’s reputation is however boosted by their money back guarantee which they offer their customers if they are not 100% satisfied with their purchased product. Customer reviews are fairly mixed with some claiming that the product is ineffective and others counteracting this view with a more positive opinion. There are also comments about the automatic membership system which will charge the customer if they do not cancel after their free trial. However, all of this information is provided on the FAQ part of the company website so customer complaints are somewhat nullified by this inclusion on the official company website.

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Where To Buy

Slim Science provides their customers with links to reputable sources to buy their product. The product is available to buy on the high street but unfortunately not in the UK. Slim Science is also only available to purchase on US websites which results in prices being given in USD ($) instead of GBP (£), although it is simple to convert prices online. The three sites which Slim Science refer to are Amazon, GNC and Lucky Vitamin. Amazon seems to be the cheapest retailer where the product costs just £25.70. GNC also offers Slim Science at this price but the customer must be a member for the discounted price (the price for non-members is £32.13). sells the supplement for £30.84 which falls in the middle of these prices depending on membership. The supplement can also be purchased from the Slim Science product page, but the price here is £38.64, the most expensive out of all the retailers. Overall, the product seems to offer fairly good value for money depending upon effective results.

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Overall Verdict

Overall, this product seems to be a relatively good option for customers who want to suppress appetite in order to lose weight. If the product does effectively help its users to lose excess weight then other factors such as cost and possible side effects may not seem so off-putting to potential buyers. All ingredients are natural and have been reported as having minimal or uncommon side effects when taken as directed. Therefore, Slim Science could potentially be a good choice of supplement for adults who want to lose weight by reducing their caloric intake, although regular exercise is still advised to reach its maximum effect.



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