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Excipients... Approved for use.
The term excipient refers to the ‘inactive’ ingredients used in tablet making. These ingredients provide little, if any, nutritional value to the body, however, they are crucial to the accurate manufacturing of tablets, capsules and liquids. All of the excipients Nature’s Best® uses are approved by the Pharmaceutical Society of Great Britain.
Tablet making is a real skillAny experienced tablet technician will tell you that it is quite easy to make very hard, perfect tablets. However, the real skill lies in making tablets that will disintegrate quickly once swallowed. To achieve this special ingredients called ‘disintegrants’ need to be added to the formula. These are normally plant sourced cellulose or starches, and the tablet maker has to use his experience, plus a lot of trial and error, to get the formula just right.
Every tablet we sell has a specific disintegration time. A small number of tablets are formulated to disintegrate slowly, like our vitamin C, but generally the tablet technician aims for between 30-60 minutes. Do all companies in the vitamin sector follow these principles? No, our experience is that some agents that import bulk tablets into the UK are surprised to be asked about disintegration time, and certainly don’t have the information available.
Does disintegration time matter? Yes a lot! If a tablet fails to disintegrate quickly it will arrive in the bowel, where most nutrients can’t be absorbed.
The excipients we use
AcaciaAn emulsifier and stabilising agent that helps to bind ingredients together that would not other wise mix.
Beetroot PowderA natural pink colouring agent which is added in minute quantities to colour tablets.
Calcium Carbonate and DiCalcium PhosphateThese are excellent buffers of acidic nutrients such as vitamin C but they can also be used as diluents. Many ingredients are required in such tiny amounts that they have to be diluted to ensure that accurate dispersion can occur.
CarrageenanThis is a seaweed based gelling agent and an excellent alternative to gelatine.
CelluloseThis has two uses. Sometimes we need to add this ingredient to the formula to speed up the disintegration of the tablet. It is a natural ingredient from plants and absorbs moisture in the tablet which helps disintegration. Some nutrients are needed in tiny amounts and the skill of a tablet maker is to ensure that each tablet has the right amount of the nutrient. To do this the nutrient is first mixed with an inert material such as cellulose.
Copper ChlorophyllinNatural green colouring agent used in some of our tablet coatings. It’s added in minute amounts.
Crosslinked Cellulose GumIn order to ensure that tablets dissolve within a specified time, disintegrants such as this are included to aid the breakdown of the tablet.
CurcuminA natural yellow colouring agent derived from the turmeric root which is used in some tablet coatings.
DextroseA sweetening agent
DiSodium PhosphateThis ingredient helps to combine ingredients together.
GelatineA very useful material often used in capsule shell production. We only use pharmaceutical grade bovine gelatine that complies with the very stringent standards of the Gelatine Manufacturers of Europe Association (GMEA).
Glycerine/ GlycerolThis plant sourced material is used to help keep capsules flexible and prevent them from becoming brittle which can lead to breakage and spoilage. In addition it has antimicrobial preservative properties.
Glyceryl MonostearateA very versatile excipient useful in the production of sustained (time release) products. It’s mainly used as an emulsifier bringing fats and water based nutrients together.
Hydroxypropyl MethylcelluloseUsed to coat tablets. It helps protect the nutrients and also helps to ensure a smooth tablet finish which makes the tablets easy to swallow.
Iron OxideA natural red colouring agent used to colour some of our tablets. It contains a negligible amount of iron.
Magnesium StearateFrom vegetable source, this material is essential for accurate mixing and tablet manufacture. It stops powders from clumping together.
Modified StarchA popular disintegrant derived from plant sourced ingredients.
Potassium SorbateUsed in liquid preparations as an antimicrobial preservative.
Rice PowderAn excellent tablet binder that is crucial to tablet integrity. It helps to prevent weak crumbly tablet cores.
Silicon DioxideThis is a flow aid. It helps the free-flowing nature of powders during processing.
SorbitolOften used in chewable formulations as its pleasant flavour makes it an ideal diluent for ingredients required in small amounts.
Stearic AcidThis is an emulsifier which assists in the blending of complex formulations.
SucraloseThis is used in small amounts as a sweetening agent to improve palatability. It’s useful in chewable products where taste is an important consideration. There have been more then 100 scientific studies conducted over a 20 year period demonstrating its safety as a sweetening agent.
Sulphur DioxideThis has antimicrobial properties.
Titanium DioxideA natural mineral pigment used in tablet coating to reflect light and thus protect delicate light sensitive compounds found in the tablet core.
TriCalcium PhosphateRequired to balance the pH of some formulas, this is often referred to as an acidity regulator.
XylitolA natural sweetener that is used to sweeten chewable products, with the benefit over sugar that it does not cause tooth decay. It has a long history of safety use.