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New active multifunctional protection

The request for safe and effective preservative-free solutions have seen a huge transformation in recent months.

Microbial inhibitors are no longer considered as mere functional ingredients performing an important role without being noticed, but as active elements of the formula able to fulfil multiple roles according to the product’ characteristics, trends or claims.

This new approach appeals to busy formulators, who are tempted by the use of multitasking ingredients both because they can shorten their research in the hectic life and also for the possibility to adhere to the “clean beauty” trend. It is an overall rethinking of the cosmetic product, not only aiming to one substance to preserve the system, but relying on a material that can enhance the formulation’s characteristics and properties.

Sinerga, observing this market trend and studying new molecules with multiple activities, has developed a new concept of protection with 2 multifunctional ingredients: Mintiol and Parfiol.

Mintiol is a natural and Cosmos microbial inhibitor with soothing and refreshing properties, able to characterise the formula adding extra benefits for skin. It is a mint derivative whose scent matches wellwith a wide choice of olfactory notes, such as citrus, fruity, floral and gourmand. It has a wide spectrum of activity on microorganisms and it is effective in a wide range of pH, from 4 to 9. It is able to act both as a complete preservative solution (suggested dosage: 2%) and as a booster of other preserving substances (from 0.5% to 1.6%), working in synergy to protect the formula. Indeed, it can be used in combination with Sodium Benzoate or Potassium Sorbate, the most used substances in Cosmos formulation, reducing their concentration of use without compromising the overall preserving activity.

Parfiol is a blend of esters and aromatic alcohols that combines the formulative protection with odour masking properties, conferring a pleasant creamy olfactory note to the cosmetic. It is effective on a wide range of microorganisms at a pH from 4 to 9.  1% of Parfiol is enough to completely preserve the formula. Otherwise, it can be used in combination with other preservative substances, using a concentration below 1%, as a booster of the co-microbial inhibitors. It matches well with musky, gourmand, ozonic and floral notes. From an internal panel, 0.5% of Parfiol is already able to have odour masking activities in combination with other ingredients with a characteristic scent.

Both ingredients are easy to use in formula, to make formulators lives easier. Parfiol and Mintiol are soluble in lipidic phase, alcohols and glycols, while for both no incompatibility has been observed. In O/W emulsions they can be added at the end of the process, under 40°C. A solubiliser is required in clear systems, for example in hydrogels. In surfactant systems, just add to the mixture. Due to their lipophilic nature, Mintiol and Parfiol are suitable in all cosmetic forms except W/O emulsions. MIC analysis and challenge tests for several formulations with Mintiol and Parfiol are available on request.

See more about Sinerga

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Upcoming Events

Naturals in Cosmetic Science Conference

Online
6-8 July 2021

in-cosmetics Korea 2021

Hall C, Coex, Seoul, South Korea
14 - 16 July 2021

The Society of Cosmetic Scientists, Singapore - 11th SCSS Suppliers Day, August 2021

Marriott Singapore, Tang Plaza Hotel. 320 Orchard Road
Thursday 26th & Friday 27th August 2021

in-cosmetics Global 2021 - Barcelona

Fira Barcelona
5 - 7 October 2021

in-cosmetics Asia 2021

BITEC Bangkok, Thailand
2 - 4 November 2021

NYSCC Suppliers’ Day 2021

Jacob K. Javits Convention Center, New York
10 - 11 November 2021

Access the latest issue of Personal Care Magazine on your mobile device together with an archive of back issues.

Download the FREE Personal Care Magazine app from your device's App store

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