COSMETICS BUSINESS LIVE
homogenisation to a point where the batch is both consistent in appearance and homogeneous in consistency, ensuring volatile fragrances are released consistently throughout for the user. With many cosmetic products being an emulsion in structure, high shear can have positive impacts on shelf life, as the high energy emulsification process rapidly reduces droplet size to give a fine, uniform dispersion, boosting the stability of emulsions over longer periods of time.
The Silverson Mixer, due to the intensive mixing action it generates, will typically employ a more powerful motor than a conventional stirrer made for a similar batch size. However, with batch times being reduced by up to 90%, energy savings from using a Silverson are significant even before considering the wider savings realised by shortening the manufacturing process.
This can include a saving in heating equipment as many applications – such as dissolving – can often be carried out at ambient temperature. Ease of use and
Silverson’s mixer promises a reduction in batch times for up to 90%, reducing energy costs for manufacturers
batch-to-batch consistency also offer reductions in labour and facility overheads.
As batch sizes increase, the rotor- stator workhead can become less effective at achieving bulk movement of higher viscosity liquids like cosmetic formulations. This is why Silverson has multiple types of machine that may be used to achieve the best efficiency for these challenging mixing applications. Examples of this could be utilising both a bottom entry high shear mixer in
partnership with a slow speed scraped- surface agitator as opposed to a top entry high shear machine.
This change in arrangement means that the Silverson machine no longer carries out the bulk movement duty and focuses energy on the homogenisation of the formulation as it is fed to the mixer by the agitator.
This is also the case for in-line high shear mixers, and in some cases these mixers can offer additional functionality and benefits
COSMOS Guarantee Guarantee
and that your products have not been tested on animals. For both certification standards, the whole production process is audited. We ensure processing facilities have effective environmental management systems in place for things like waste and water, and that toxic chemicals like bleach are not being used to clean equipment. It also shows your consumer you are committing to a yearly inspection - your commitment to protecting the environment is ongoing, not just a ‘one-off’ in order to tick a box. As more consumers look for brands to
be meeting third party accreditation, Soil Association COSMOS Organic is set to grow.
It is one of the strictest standards out
there in terms of environmental safeguarding, from the farm to the face, and is a quick-fire way for a consumer to assure that a product is environmentally friendly.
cosmeticsbusiness.com December 2022 67
All ingredients used are checked GM free
Protection for vulnerable plants No animal testing
Only natural derived colours and fragrances are used Restrictions over the use of petrochemical ingredients Prevents greenwashing
May include organic ingredients Must include a minimum % of organic ingredients
Calculation for the number of organic ingredients in the product required Manufacturers are inspected at least annually
Packaging standards
COSMOS Organic
Companies have environmental management systems in place to minimise waste
Logo may be printed green
COSMOS Natural
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