Writing in its international patent, Coty said it had developed an active antiperspirant formula using a film former and blend of nymphaea coerulea [Egyptian lotus] and nelumbo nucifera [Indian lotus] flower extracts to reduce perspiration and offer a long-lasting fragrance after application. The formulation, it said, could be used to manufacture antiperspirants in various forms, including sticks, gels, creams, roll-ons, aerosols and even body sprays.
“Consumers desire antiperspirant and deodorant compositions that provide a desired and long-lasting fragrance or scent each time the composition is applied or used,” Coty wrote in its patent filing.
“Particularly in the case of deodorants, consumers may also expect compositions that provide a scent that can mask or override other undesirable odours,” it said.
The beauty major said the formula used Provital’s trademarked active skin care extract ‘Nelupure’ – a blend of Egyptian and Indian lotus extracts that was designed to balance oily skin and regulate sebum production – in the formulation, offering more than just a long-lasting scent.
The extract could be integrated into the formulation at 0.001 wt% to about 0.01 wt%.
“Without intending to be bound to any theory, it is thought that the extract solution is useful in an antiperspirant composition in part because it reduces the expression of the leptin cellular receptor in sebocytes, thus preventing the triggering of sebum production and inflammatory processes that cause skin blemishes,” Coty said.
“It has been shown that leptin, a protein synthesised and secreted by different cell types in our body, including skin cells, plays a role in the cellular mechanism that triggers sebum synthesis.”
Importantly, Coty said the antiperspirant could be made free of aluminium salt, instead using zirconium oxy salts and zirconium hydroxyl salts, and offer reduced perspiration in a subject for between two to 48 hours, ideally longer than 24 hours.
Long-lasting odour control
Beyond this, Coty said the antiperspirant formulation could also incorporate perfumes and perfume raw materials delivered via various systems, included polymer-assisted delivery, molecule-assisted, fibre-assisted or starch encapsulated accord, among other methods.
In some instances, the composition could also include an “odour entrapper” with solubilised, water-soluble and uncomplexed cyclodextrin being good examples, it said.
WIPO International Patent No. WO/2023/004315
Published on: January 26, 2013. Filed on: July 19,2022.
Title: “Antiperspirant composition”
Inventors: Coty – KN. Da Silva and CER. Dalseno